WO2020061663A1 - Steel component spiralled along a helical reinforcement bar for forming mixed connections and elements - Google Patents
Steel component spiralled along a helical reinforcement bar for forming mixed connections and elements Download PDFInfo
- Publication number
- WO2020061663A1 WO2020061663A1 PCT/BR2019/050246 BR2019050246W WO2020061663A1 WO 2020061663 A1 WO2020061663 A1 WO 2020061663A1 BR 2019050246 W BR2019050246 W BR 2019050246W WO 2020061663 A1 WO2020061663 A1 WO 2020061663A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steel component
- concrete
- helicoidal
- bar
- elements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
- E04C3/294—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete of concrete combined with a girder-like structure extending laterally outside the element
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
Definitions
- the object of this Invention Patent Application is intended for civil construction and applies to concrete or mixed steel and concrete structures.
- the object consists of a constructive arrangement characterized by a steel component with a series of holes, through which it is spiraled by a helical reinforcement bar, applied to compose elements and mixed connections of steel and concrete.
- the object of the invention has the effect of facilitating the integration between steel and reinforced concrete components, providing the execution of new mixed elements and new parts for mixed connections, with gains in practicality of assembly and structural performance in relation to solutions currently available.
- the present invention offers a practical alternative to the aforementioned methods, allowing a faster process of integration of the steel, reinforcement and concrete profile, including for cruciform profiles partially surrounded by concrete.
- a helical bar is adopted as armature, which is continuously spiraled through holes along the steel profile, ensuring, quickly and without welds, continuity of transversal reinforcement and integration between the constituent parts of the mixed element.
- Another advantage that the present invention can provide is the possibility of eliminating the need for welded connectors to resist the longitudinal shear between the steel profile and the concrete. This is possible because the steel component and the concrete can be connected in a rigid and resistant way through the holes in the steel component, since these, when crossed by the helical bar and filled by the concrete, constitute a connection with an analogous function to the one of sheared pins.
- This connection means was designed to couple concrete slabs and steel beams in patent EP0215148A1, “Connection means for mixed concrete structures”, which, in its summary, describes: “Profiles are welded to the table of a steel beam in the longitudinal direction and inserted into the concrete of the slab.
- the parts of the profile that project perpendicularly to the beam table are provided with continuous holes at narrow intervals.
- the concrete that passes through the holes, such as pins makes shear connections in two planes between the concrete slab and the profile, through which shear forces can be transmitted in any direction on the beam plane. This prevents the concrete slab from being raised, so that, in principle, no special connectors are needed to provide tensile-resistant connection between the beam table and the concrete slab.
- the effect of horizontal concrete pins can be increased by means of screws and / or reinforcement bars that are inserted through the holes. ”.
- Parts for screw splicing on concrete pillars The parts currently available for screw splicing on concrete pillars have their fundamental characteristics set out in patent RU2244789C1, “Reinforced concrete pillar, top splice for pillars and top splice execution method ", which, in its summary, describes:” Pillar characterized by a concrete element with longitudinal reinforcements arranged along the entire length of the pillar. In the pillar, stirrups and auxiliary reinforcement at the ends are included. Transverse steel sheets are arranged at the ends of the pillar and connected to the concrete element using anchor bars. The longitudinal reinforcements are not fixed to the end plates. Steel angles are fixed to the steel sheets forming niches next to the plates on the sides of the pillar.
- the niches are arranged symmetrically around the axis of the column. In these niches of the end plates, holes are drilled to make the screw connections to promote the splice between the upper and lower columns.
- the pillar may have a circular or prismatic section.
- the transverse plates connected to the ends of the column can be increased in thickness by additional plates in the region in the niches delimited by the angles. ”. In this configuration, the resistance and stiffness of the splice to stresses and bending moment are limited by the number of screws that can be distributed along the edges of the end plate and by the flexion stiffness of the end plate, since the plate undergoes flexion to transmit the tensile stresses of the anchor bars to the bolts.
- Figure 1.1 Perspective view of a steel component (1) with a cross-section being spiraled by a helical reinforcement bar (3) through holes (2) in the steel component by turning around the longitudinal axis .
- Figure 1.2 Perspective view of a steel component (1) with a cross section with a series of holes (2), spiraled by a helical reinforcement bar (3), with longitudinal bars (4) fixed internally to the bar helical.
- Figure 1.3 Perspective view of a SPIRAL STEEL COMPONENT BY HELICIDE ARM BAR with section cruciform partially surrounded by concrete (5), constituting a mixed element of square section.
- Figure 2.1 Top view of a STEEL COMPONENT variation
- Figure 2.2 Top view of a variation of STEEL COMPONENT
- Figure 2.5 Top view of a variation of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMOR BAR consisting of radially arranged sheets converging on the central axis of a concrete element of circular section.
- Figure 2.6 Top view of a variation of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMORBAR composed of sheets welded perpendicularly to the tables and to the core of a profile I surrounded by concrete, constituting a mixed element of octagonal section with protruding flaps.
- Figure 2.7 Top view of a variation of SPIRAL STEEL COMPONENT BY HELICIDE ARMATURE BAR with closed section formed by composition of C profiles filled with concrete, constituting a mixed element of square section.
- Figure 2.8 Top view of a variation of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMATURE BAR consisting of a flat plate inserted in a concrete element with a hollow circular section.
- Figure 2.9 Top view of a variation of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMORBAR BAR composed of tubular profile with plates welded perpendicularly on the external face and surrounded by concrete, constituting a mixed element of octagonal hollow section.
- Figure 2.10 Top view of a variation of SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR WITH I-section formed by composition of C profiles partially surrounded by concrete, constituting a mixed element of octagonal section.
- Figure 2.11 Top view of a variation of SPIRAL STEEL COMPONENT BY DISCONTINUOUS HELICOIDAL ARM BAR, made up of plates arranged radially and partially inserted into a concrete element of circular section.
- Figure 2.12 Top view of a variation of SPIRAL STEEL COMPONENT BY DISCONTINUOUS HELICOIDAL ARM BAR, consisting of radially arranged T profiles and partially inserted into an octagonal concrete element.
- Figure 3.1 Perspective view of a SPIRAL STEEL COMPONENT BY CROSS-shaped section HELICOIDAL BAR having its free edges fixed to form plates (6) to restrict the torsional buckling of the steel component in construction steps prior to hardening of the concrete.
- Figure 3.2 Perspective detail of form plates (6) being fixed by screws to the free edges of a SPIRAL STEEL COMPONENT BY HELICIDE ARMOR BAR.
- Figure 3.3 Cross-section of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in a cruciform section, in a constructive stage prior to concreting, with its free edges restricted by form plates (6).
- Figure 3.4 Perspective view of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in cross section with its free edges restricted by form plates (6) containing concrete (5) not yet hardened.
- Figure 3.5 Perspective view of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in cross section after removal of the forms, constituting a mixed element of circular section with protruding flaps.
- Figure 4.1 Perspective view of an end plate (1 .3) being fixed to a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in cross section to form a piece for mixed connection.
- Figure 4.2 Perspective view of a part for mixed connection consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in a cruciform section welded to an end plate (1 .3), with connection plate (1 .1) and stiffeners (1 .2).
- Figure 4.3 Perspective view of a concrete element (5) with a circular section, presenting at its end a piece for mixed connection consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR.
- Figure 4.4 Perspective view of a labeled connection between a concrete element (5) with a circular section and a concrete block by means of a piece for mixed connection consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMOR BAR.
- Figure 5.1 Perspective view of a SPIRAL STEEL COMPONENT BY HELICIDE ARM BAR in cross section with extended flaps for making connections between concrete pillar and steel beams.
- Figure 5.2 Perspective view of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in a cruciform section, integrated to the pillar armor, with flaps extended (1 .4) laterally.
- Figure 5.3 Top view of a concrete pillar (5) of circular section connected to the four steel beams by means of the extended flaps (1 .4) of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR.
- Figure 5.3 Perspective view of a concrete pillar (5) of circular section connected to the four steel beams by means of the extended flaps (1 .4) of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR.
- Figure 6.1 Perspective view of the assembly of a part for rigid connections between concrete pillar and steel beams, consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMATURE BAR with cross section with extended flaps (1 .4), plates connection (1 .1) and stiffeners (1 .2).
- Figure 6.2 Perspective view of four steel beams being rigidly connected to a concrete pillar (5) of circular section by means of a piece for mixed connection, consisting of SPIRALED STEEL COMPONENT BY HELICOIDAL ARMATURE BAR welded to sheets connection points (1 .1) and stiffeners (1 .2) that form diaphragms around the column.
- Figure 7.1 Perspective view of the assembly of a part for splicing between concrete pillar segments, consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMOR BAR cruciform with extended flaps (1 .4) and end plate (1 .3) with holes and protruding pins (7).
- Figure 7.2 Perspective view of a piece for splicing between concrete pillar segments, consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMATURE BAR with cruciform section with extended flaps (1 .4) and end plate (1. 3) with longitudinal bars (4) welded perpendicular to it.
- Figure 7.3 Perspective view of two concrete pillar segments (5) being fitted through holes and pins (7) protruding from the end plates (1 .3).
- Figure 7.4 Perspective view of two concrete pillar segments (5) being connected through the extended flaps (1 .4) of the SPIRALED STEEL COMPONENTS BY HELICOIDAL ARM BAR by connecting plates (1 .1) .
- Figure 8.1 Perspective view of the assembly of a part to perform splice between segments of concrete pillar and connection of it with steel beams, consisting of SPIRAL STEEL COMPONENT BY HELICIDE ARMATURE BAR with cruciform section with extended flaps (1 .4), connection plates (1 .1), stiffeners (1 .2) and end plate (1 .3) with circular opening.
- Figure 8.2 Perspective view of a piece for splicing between concrete pillar segments and connecting it with steel beams, consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMATURE BAR of cross section with extended flaps (1 .4), connection plates (1 .1), stiffeners (1 .2) and end plate (1 .3) with longitudinal bars (4) welded perpendicularly to it.
- Figure 8.3 Perspective view of two segments of concrete pillar (5) being fitted by means of filling (8) in the space formed by the openings of the end plates (1 .3).
- Figure 8.4 Perspective view of two concrete pillar segments (5) being connected to each other and connected to the four steel beams through the extended flaps of the SPIRALED STEEL COMPONENTS BY HELICIDE ARMOR BAR and connecting plates (1. 1 ).
- the STEEL COMPONENT SEWED BY HELICOIDAL ARM BAR is characterized by a profile or composition of steel sheets (1), with holes (2) arranged along the length around a longitudinal axis, through which it is spiraled by a helical reinforcement bar (3), to which longitudinal bars (4) are internally attached and which, when wrapped or filled with concrete (5), constitutes an element mixed.
- the steel component (1) can be a profile or composition of steel profiles or sheets and can have different shapes, as long as its cross section provides points of intersection with the circle of the reinforcement, allowing it to be spiraled by the helical bar (3).
- the steel component (1) may have discontinuities in its cross section, according to figures 2.1 1 and 2.12.
- the concrete (5) can be formed into a circular or prismatic, solid or hollow shape, as shown in figures 2.8 and 2.9, and can involve the steel component totally or partially or fill it, if the steel component presents a closed cross section, as figure 2.7.
- molds (6) can be fixed along the free edges of an open section steel component (1), in order to reinforce and / or restrict its buckling during the erection phase of the structure. After pouring and curing, the forms (6) are removed, the efforts they are redistributed between the constituent parts of the mixed element and the stability of the steel component (1) is now guaranteed by the concrete (5).
- the steel component (1) can extend along the entire length of the structural element, making up a mixed element, or only along a certain segment of the element, making up a part for mixed connections.
- the steel component (1) may have its ends extended out of the concrete (5), forming extended flaps (1 .4) to form a connection with other structural elements.
- connection plates (1 .1) and stiffeners (1 .2) can be welded to the extended flaps (1 .4) of the steel component to make rigid connections possible, with diaphragms around the concrete (5).
- an end plate (1 .3) can be perpendicularly fixed to the top of a steel component (1) with extended flaps (1 .4) and welded to longitudinal bars (4 ) for anchoring in the concrete (5), in order to constitute a piece that allows to make seams between reinforced concrete segments, with the seams being made by touching the end plates (1 .3) and joining the extended flaps (1 .4 ) of both elements by means of connection plates (1 .1).
- holes or openings can be made in the end plate (1 .3) and filled with pins (7) or means of filler (8) to provide a male-female fitting and withstand cutting forces in the splice plane.
- the holes or openings in the end plate must be plugged when pouring.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Reinforcement Elements For Buildings (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
COMPONENTE DE AÇO ESPI RALADO POR BARRA DE ARMADURA HELICOIDAL PARA COMPOSIÇÃO DE ELEMENTOS E LIGAÇÕES MISTAS COMPONENT OF GRATED SPI STEEL BY HELICOIDAL ARMOR BAR FOR COMPOSITION OF ELEMENTS AND MIXED CONNECTIONS
[01 ] O objeto do presente Pedido de Patente de Invenção se destina à construção civil e se aplica a estruturas de concreto ou mistas de aço e concreto. O objeto consiste em uma disposição construtiva caracterizada por um componente de aço com uma série de furos, através dos quais é espiralado por barra de armadura helicoidal, aplicada para compor elementos e ligações mistas de aço e concreto. [01] The object of this Invention Patent Application is intended for civil construction and applies to concrete or mixed steel and concrete structures. The object consists of a constructive arrangement characterized by a steel component with a series of holes, through which it is spiraled by a helical reinforcement bar, applied to compose elements and mixed connections of steel and concrete.
[02] O objeto da invenção tem o efeito de facilitar a integração entre componentes de aço e de concreto armado, proporcionando a execução de novos elementos mistos e novas peças para ligações mistas, com ganhos em praticidade de montagem e desempenho estrutural em relação a soluções atualmente disponíveis. [02] The object of the invention has the effect of facilitating the integration between steel and reinforced concrete components, providing the execution of new mixed elements and new parts for mixed connections, with gains in practicality of assembly and structural performance in relation to solutions currently available.
[03] A presente disposição construtiva foi inicialmente requerida no pedido de patente BR2020170248203,“Pilar misto com perfil de aço costurado por estribo espiral”, de mesma titularidade do titular deste pedido. [03] This constructive provision was initially required in patent application BR2020170248203, “Mixed abutment with steel profile sewn by spiral stirrup”, of the same title as the holder of this application.
[04] A respeito dos elementos mistos, as soluções atualmente disponíveis para integrar suas partes constituintes, isto é, perfil de aço, armadura e concreto, são, conforme a norma europeia EN 1994-1 -2: 2005 - itens 5.2 e 5.3.1 : soldagem de estribos ao perfil de aço, inserção de barras transversais através de furos no perfil com posterior amarração das mesmas e soldagem de conectores ao perfil de aço. Todas essas alternativas são executadas, atualmente, por processos repetitivos em que se fixa barra por barra ou conector por conector ao longo do perfil de aço. Além disso, a última delas não garante a continuidade da armadura transversal em elementos mistos parcialmente envolvidos por concreto, ficando os estribos, nesses casos, interrompidos pelo perfil de aço. Isso eleva o peso de armadura e reduz a resistência do elemento misto ao esforço cortante na direção das pernas de estribo interrompidas. [05] Para elementos mistos parcialmente envolvidos por concreto que apresentam perfis de aço com mais de uma chapa convergindo no eixo central, como os perfis cruciformes, a integração entre as partes do elemento misto por meio dos processos atualmente disponíveis é especialmente trabalhosa, demandando maior número de fixações de estribos ou conectores, devido ao maior número de interrupções na seção de concreto. [04] Regarding mixed elements, the solutions currently available to integrate their constituent parts, that is, steel profile, reinforcement and concrete, are, according to the European standard EN 1994-1 -2: 2005 - items 5.2 and 5.3. 1: welding of stirrups to the steel profile, insertion of cross bars through holes in the profile with subsequent tying of them and welding of connectors to the steel profile. All of these alternatives are currently carried out by repetitive processes in which bar by bar or connector by connector is fixed along the steel profile. In addition, the last one does not guarantee the continuity of the transverse reinforcement in mixed elements partially surrounded by concrete, the stirrups, in these cases, being interrupted by the steel profile. This increases the reinforcement weight and reduces the resistance of the mixed element to the shear force towards the interrupted stirrup legs. [05] For mixed elements partially surrounded by concrete that have steel profiles with more than one plate converging on the central axis, such as cruciform profiles, the integration between the parts of the mixed element through the currently available processes is especially laborious, requiring greater number of fixings of stirrups or connectors, due to the greater number of interruptions in the concrete section.
[06] A presente invenção oferece uma alternativa prática aos métodos supracitados, permitindo um processo mais rápido de integração do perfil de aço, armadura e concreto, inclusive para perfis cruciformes parcialmente envolvidos por concreto. Nessa alternativa, em vez de se fixar as barras ou conectores uma a uma, adota-se como armadura uma barra helicoidal, que é espiralada continuamente através de furos ao longo do perfil de aço, garantindo, de forma rápida e sem soldas, continuidade da armadura transversal e integração entre as partes constituintes do elemento misto. [06] The present invention offers a practical alternative to the aforementioned methods, allowing a faster process of integration of the steel, reinforcement and concrete profile, including for cruciform profiles partially surrounded by concrete. In this alternative, instead of fixing the bars or connectors one by one, a helical bar is adopted as armature, which is continuously spiraled through holes along the steel profile, ensuring, quickly and without welds, continuity of transversal reinforcement and integration between the constituent parts of the mixed element.
[07] Outra vantagem que a presente invenção pode proporcionar é a possibilidade de se eliminar a necessidade de conectores soldados para resistir ao cisalhamento longitudinal entre o perfil de aço e o concreto. Isso é possível, pois, o componente de aço e o concreto podem ficar conectados de forma rígida e resistente através dos furos no componente de aço, visto que esses, quando atravessados pela barra helicoidal e preenchidos pelo concreto, constituem uma conexão com funcionamento análogo ao de pinos cisalhados. Esse meio de conexão foi concebido para acoplar lajes de concreto e vigas de aço na patente EP0215148A1 ,“Meio de conexão para estruturas mistas de concreto”, que, em seu resumo, descreve:“Perfis são soldados à mesa de uma viga de aço no sentido longitudinal e inseridos no concreto da laje. As partes do perfil que se projetam perpendicularmente à mesa da viga são providas de furos contínuos em intervalos estreitos. O concreto que passa através dos furos, tal como pinos, faz conexões de cisalhamento em dois planos entre a laje de concreto e o perfil, através das quais forças de cisalhamento podem ser transmitidas em qualquer direção no plano da viga. Isso evita que a laje de concreto seja levantada, de modo que, em princípio, não são necessários conectores especiais para prover conexão resistente à tração entre a mesa da viga e a laje de concreto. O efeito dos pinos de concreto horizontais pode ser aumentado por meio de parafusos e/ou barras de armadura que são inseridos através dos furos.”. [07] Another advantage that the present invention can provide is the possibility of eliminating the need for welded connectors to resist the longitudinal shear between the steel profile and the concrete. This is possible because the steel component and the concrete can be connected in a rigid and resistant way through the holes in the steel component, since these, when crossed by the helical bar and filled by the concrete, constitute a connection with an analogous function to the one of sheared pins. This connection means was designed to couple concrete slabs and steel beams in patent EP0215148A1, “Connection means for mixed concrete structures”, which, in its summary, describes: “Profiles are welded to the table of a steel beam in the longitudinal direction and inserted into the concrete of the slab. The parts of the profile that project perpendicularly to the beam table are provided with continuous holes at narrow intervals. The concrete that passes through the holes, such as pins, makes shear connections in two planes between the concrete slab and the profile, through which shear forces can be transmitted in any direction on the beam plane. This prevents the concrete slab from being raised, so that, in principle, no special connectors are needed to provide tensile-resistant connection between the beam table and the concrete slab. The effect of horizontal concrete pins can be increased by means of screws and / or reinforcement bars that are inserted through the holes. ”.
[08] Com relação às peças para ligações mistas, existem atualmente disponíveis para estruturas pré-fabricadas, peças de aço que se destinam a realizar ligações entre elementos de concreto armado ou entre elementos de concreto armado e elementos de aço, proporcionando rapidez e facilidade de montagem. Contudo, adotando componente de aço espiralado por barra helicoidal, é possível propor configurações alternativas que melhoram aspectos como resistência, rigidez, peso e custo de algumas dessas peças. As quais são especificadas nos parágrafos a seguir. [08] With respect to parts for mixed connections, there are currently available for prefabricated structures, steel parts that are intended to make connections between reinforced concrete elements or between reinforced concrete elements and steel elements, providing speed and ease of Assembly. However, by adopting a spiral steel component with a helical bar, it is possible to propose alternative configurations that improve aspects such as strength, rigidity, weight and cost of some of these parts. Which are specified in the following paragraphs.
[09] Peças para ligação entre pilar circular de concreto e vigas de aço: Os métodos atualmente disponíveis para essas ligações demandam tubos de aço envolvendo a seção de concreto para viabilizar as conexões com as vigas de aço, como proposto por Zhang et al. (2017). Contudo, um tubo de aço com dado diâmetro e espessura apresenta peso 57% maior que o de uma seção cruciforme com chapas de igual espessura circunscrita em círculo de igual diâmetro. Por esse motivo, substituindo o tubo por componente de aço de seção cruciforme espiralado por barra helicoidal pode-se conseguir redução no peso e custo dessas ligações. [09] Parts for connection between circular concrete pillar and steel beams: The methods currently available for these connections require steel tubes involving the concrete section to make connections with the steel beams viable, as proposed by Zhang et al. (2017). However, a steel tube with a given diameter and thickness has a weight 57% greater than that of a cruciform section with plates of equal thickness circumscribed in a circle of the same diameter. For this reason, by replacing the tube with a steel component with a cruciform spiral section with a helical bar, it is possible to achieve a reduction in the weight and cost of these connections.
[10] Peças para realização de emendas por parafusos em pilares de concreto: As peças atualmente disponíveis para realização de emendas por parafusos em pilares de concreto têm suas características fundamentais expostas na patente RU2244789C1 , “Pilar de concreto armado, emenda de topo para pilares e método de execução de emenda de topo”, que, em seu resumo, descreve:“Pilar caracterizado por elemento de concreto com armaduras longitudinais dispostas ao longo de todo o comprimento do pilar. Inclui-se no pilar estribos e armaduras auxiliares nas extremidades. Chapas de aço transversais são dispostas nas extremidades do pilar e conectadas ao elemento de concreto através de barras de ancoragem. As armaduras longitudinais não são fixadas às chapas de extremidade. Cantoneiras de aço são fixadas às chapas de aço formando nichos junto às chapas nas laterais do pilar. Os nichos são dispostos simetricamente em torno do eixo do pilar. Nesses nichos das chapas de extremidade são realizados furos para execução das ligações parafusadas para promover emenda entre o pilar superior e inferior. O pilar pode apresentar seção circular ou prismática. As chapas transversais conectadas às extremidades do pilar podem ter a espessura aumentada por chapas adicionais na região nos nichos delimitados pelas cantoneiras.”. Nessa configuração, a resistência e rigidez da emenda à solicitações de tração e momento fletor são limitadas pelo número de parafusos que se pode distribuir ao longo das bordas da chapa de extremidade e pela rigidez à flexão da chapa de extremidade, visto que a chapa sofre flexão para transmitir os esforços de tração das barras de ancoragem para os parafusos. Por esse motivo, a inserção de um componente de aço espiralado por barra de armadura helicoidal com abas que se estendem para fora do elemento de concreto, soldado perpendicularmente à chapa de extremidade, proporciona emendas mais resistentes e rígidas, uma vez que esse componente atua como enrijecedor para a chapa de extremidade, aumentando sua rigidez à flexão, e permite aumentar o número de parafusos da emenda, possibilitando distribuir ao longo de suas abas quantos parafusos forem necessários para garantir a resistência da emenda. [10] Parts for screw splicing on concrete pillars: The parts currently available for screw splicing on concrete pillars have their fundamental characteristics set out in patent RU2244789C1, “Reinforced concrete pillar, top splice for pillars and top splice execution method ", which, in its summary, describes:" Pillar characterized by a concrete element with longitudinal reinforcements arranged along the entire length of the pillar. In the pillar, stirrups and auxiliary reinforcement at the ends are included. Transverse steel sheets are arranged at the ends of the pillar and connected to the concrete element using anchor bars. The longitudinal reinforcements are not fixed to the end plates. Steel angles are fixed to the steel sheets forming niches next to the plates on the sides of the pillar. The niches are arranged symmetrically around the axis of the column. In these niches of the end plates, holes are drilled to make the screw connections to promote the splice between the upper and lower columns. The pillar may have a circular or prismatic section. The transverse plates connected to the ends of the column can be increased in thickness by additional plates in the region in the niches delimited by the angles. ”. In this configuration, the resistance and stiffness of the splice to stresses and bending moment are limited by the number of screws that can be distributed along the edges of the end plate and by the flexion stiffness of the end plate, since the plate undergoes flexion to transmit the tensile stresses of the anchor bars to the bolts. For this reason, the insertion of a spiral steel component by a helical reinforcement bar with flaps extending outside the concrete element, welded perpendicularly to the end plate, provides more resistant and rigid seams, since this component acts as stiffener for the end plate, increasing its flexural rigidity, and allows to increase the number of splicing screws, making it possible to distribute as many screws as necessary to guarantee the seam resistance along its flaps.
[1 1 ] As figuras descritas nos parágrafos a seguir apresentam exemplos que auxiliam na compreensão da invenção e suas aplicações. [1 1] The figures described in the following paragraphs present examples that assist in understanding the invention and its applications.
[12] Figura 1.1 : Vista em perspectiva de um componente de aço (1 ) de seção cruciforme sendo espiralado por uma barra de armadura helicoidal (3) através de furos (2) no componente de aço por ação de giro em torno do eixo longitudinal. [12] Figure 1.1: Perspective view of a steel component (1) with a cross-section being spiraled by a helical reinforcement bar (3) through holes (2) in the steel component by turning around the longitudinal axis .
[13] Figura 1.2: Vista em perspectiva de um componente de aço (1 ) de seção cruciforme com uma série de furos (2), espiralado por uma barra de armadura helicoidal (3), com barras longitudinais (4) fixadas internamente à barra helicoidal. [13] Figure 1.2: Perspective view of a steel component (1) with a cross section with a series of holes (2), spiraled by a helical reinforcement bar (3), with longitudinal bars (4) fixed internally to the bar helical.
[14] Figura 1.3: Vista em perspectiva de um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL com seção cruciforme parcialmente envolvido por concreto (5), constituindo elemento misto de seção quadrada. [14] Figure 1.3: Perspective view of a SPIRAL STEEL COMPONENT BY HELICIDE ARM BAR with section cruciform partially surrounded by concrete (5), constituting a mixed element of square section.
[15] Figura 2.1 : Vista superior de uma variação de COMPONENTE DE AÇO[15] Figure 2.1: Top view of a STEEL COMPONENT variation
ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL com seção cruciforme parcialmente envolvida por concreto, constituindo um elemento misto de seção quadrada. SPIRALED BY HELICOIDAL ARMOR BAR WITH cross section partially surrounded by concrete, constituting a mixed element of square section.
[16] Figura 2.2: Vista superior de uma variação de COMPONENTE DE AÇO[16] Figure 2.2: Top view of a variation of STEEL COMPONENT
ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL com seção cruciforme parcialmente envolvida por concreto, constituindo um elemento misto de seção circular com abas protuberantes. SPIRALED BY HELICOIDAL ARMOR BAR WITH cross section partially surrounded by concrete, constituting a mixed element of circular section with protruding flaps.
[17] Figura 2.3: Vista superior de uma variação de COMPONENTE DE AÇO[17] Figure 2.3: Top view of a STEEL COMPONENT variation
ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL com seção cruciforme formada por composição de perfis I parcialmente envolvida por concreto, constituindo um elemento misto de seção octogonal. SPIRALED BY HELICOIDAL ARMOR BAR WITH cross section formed by composition of profiles I partially surrounded by concrete, constituting a mixed element of octagonal section.
[18] Figura 2.4: Vista superior de uma variação de COMPONENTE DE AÇO[18] Figure 2.4: Top view of a variation of STEEL COMPONENT
ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL com seção cruciforme totalmente envolvida por concreto, constituindo um elemento misto de seção quadrada. SPIRALED BY HELICOIDAL ARMOR BAR WITH CRUCIFORM section totally surrounded by concrete, constituting a mixed element of square section.
[19] Figura 2.5: Vista superior de uma variação de COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL composta por chapas dispostas radialmente convergindo no eixo central de um elemento de concreto de seção circular. [19] Figure 2.5: Top view of a variation of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMOR BAR consisting of radially arranged sheets converging on the central axis of a concrete element of circular section.
[20] Figura 2.6: Vista superior de uma variação de COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL composta por chapas soldadas perpendicularmente às mesas e à alma de um perfil I envolvido por concreto, constituindo um elemento misto de seção octogonal com abas protuberantes. [20] Figure 2.6: Top view of a variation of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMORBAR composed of sheets welded perpendicularly to the tables and to the core of a profile I surrounded by concrete, constituting a mixed element of octagonal section with protruding flaps.
[21 ] Figura 2.7: Vista superior de uma variação de COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL com seção fechada formada por composição de perfis C preenchida por concreto, constituindo um elemento misto de seção quadrada. [21] Figure 2.7: Top view of a variation of SPIRAL STEEL COMPONENT BY HELICIDE ARMATURE BAR with closed section formed by composition of C profiles filled with concrete, constituting a mixed element of square section.
[22] Figura 2.8: Vista superior de uma variação de COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL constituída por uma chapa plana inserida em um elemento de concreto de seção circular oca. [22] Figure 2.8: Top view of a variation of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMATURE BAR consisting of a flat plate inserted in a concrete element with a hollow circular section.
[23] Figura 2.9: Vista superior de uma variação de COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL composta por perfil tubular com chapas soldadas perpendicularmente na face externa e envolvido por concreto, constituindo um elemento misto de seção octogonal oca. [23] Figure 2.9: Top view of a variation of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMORBAR BAR composed of tubular profile with plates welded perpendicularly on the external face and surrounded by concrete, constituting a mixed element of octagonal hollow section.
[24] Figura 2.10: Vista superior de uma variação de COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL com seção em I formada por composição de perfis C parcialmente envolvida por concreto, constituindo um elemento misto de seção octogonal. [24] Figure 2.10: Top view of a variation of SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR WITH I-section formed by composition of C profiles partially surrounded by concrete, constituting a mixed element of octagonal section.
[25] Figura 2.11 : Vista superior de uma variação de COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção descontínua, composta por chapas dispostas radialmente e parcialmente inseridas em um elemento de concreto de seção circular. [25] Figure 2.11: Top view of a variation of SPIRAL STEEL COMPONENT BY DISCONTINUOUS HELICOIDAL ARM BAR, made up of plates arranged radially and partially inserted into a concrete element of circular section.
[26] Figura 2.12: Vista superior de uma variação de COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção descontínua, composta por perfis T dispostos radialmente e parcialmente inseridos em um elemento de concreto de seção octogonal. [26] Figure 2.12: Top view of a variation of SPIRAL STEEL COMPONENT BY DISCONTINUOUS HELICOIDAL ARM BAR, consisting of radially arranged T profiles and partially inserted into an octagonal concrete element.
[27] Figura 3.1 : Vista em perspectiva de um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme tendo suas bordas livres fixadas a placas de fôrma (6) para restrição da flambagem torcional do componente de aço em etapas construtivas anteriores ao endurecimento do concreto. [27] Figure 3.1: Perspective view of a SPIRAL STEEL COMPONENT BY CROSS-shaped section HELICOIDAL BAR having its free edges fixed to form plates (6) to restrict the torsional buckling of the steel component in construction steps prior to hardening of the concrete.
[28] Figura 3.2: Detalhe em perspectiva de placas de fôrma (6) sendo fixadas por meio de parafusos às bordas livres de um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL. [29] Figura 3.3: Corte transversal de um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme, em etapa construtiva anterior à concretagem, com suas bordas livres restringidas por placas de fôrma (6). [28] Figure 3.2: Perspective detail of form plates (6) being fixed by screws to the free edges of a SPIRAL STEEL COMPONENT BY HELICIDE ARMOR BAR. [29] Figure 3.3: Cross-section of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in a cruciform section, in a constructive stage prior to concreting, with its free edges restricted by form plates (6).
[30] Figura 3.4: Vista em perspectiva de um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme com suas bordas livres restringidas por placas de fôrma (6) contendo concreto (5) ainda não endurecido. [30] Figure 3.4: Perspective view of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in cross section with its free edges restricted by form plates (6) containing concrete (5) not yet hardened.
[31 ] Figura 3.5: Vista em perspectiva de um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme após remoção das fôrmas, constituindo um elemento misto de seção circular com abas protuberantes. [31] Figure 3.5: Perspective view of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in cross section after removal of the forms, constituting a mixed element of circular section with protruding flaps.
[32] Figura 4.1 : Vista em perspectiva de uma chapa de extremidade (1 .3) sendo fixada a um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme para formar uma peça para ligação mista. [32] Figure 4.1: Perspective view of an end plate (1 .3) being fixed to a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in cross section to form a piece for mixed connection.
[33] Figura 4.2: Vista em perspectiva de uma peça para ligação mista constituída por COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme soldado a uma chapa de extremidade (1 .3), com chapa de ligação (1 .1 ) e enrijecedores (1 .2). [33] Figure 4.2: Perspective view of a part for mixed connection consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in a cruciform section welded to an end plate (1 .3), with connection plate (1 .1) and stiffeners (1 .2).
[34] Figura 4.3: Vista em perspectiva de um elemento de concreto (5) de seção circular apresentando em sua extremidade peça para ligação mista constituída por COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL. [34] Figure 4.3: Perspective view of a concrete element (5) with a circular section, presenting at its end a piece for mixed connection consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR.
[35] Figura 4.4: Vista em perspectiva de uma ligação rotulada entre um elemento de concreto (5) de seção circular e um bloco de concreto por meio de peça para ligação mista constituída por COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL. [36] Figura 5.1 : Vista em perspectiva de um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme com abas estendidas para realização de ligações entre pilar de concreto e vigas de aço. [35] Figure 4.4: Perspective view of a labeled connection between a concrete element (5) with a circular section and a concrete block by means of a piece for mixed connection consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMOR BAR. [36] Figure 5.1: Perspective view of a SPIRAL STEEL COMPONENT BY HELICIDE ARM BAR in cross section with extended flaps for making connections between concrete pillar and steel beams.
[37] Figura 5.2: Vista em perspectiva de um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme, integrado à armadura de um pilar, com abas estendidas (1 .4) lateralmente. [37] Figure 5.2: Perspective view of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR in a cruciform section, integrated to the pillar armor, with flaps extended (1 .4) laterally.
[38] Figura 5.3: Vista superior de um pilar de concreto (5) de seção circular ligado à quatro vigas de aço por meio das abas estendidas (1 .4) de um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL. [38] Figure 5.3: Top view of a concrete pillar (5) of circular section connected to the four steel beams by means of the extended flaps (1 .4) of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR.
[39] Figura 5.3: Vista em perspectiva de um pilar de concreto (5) de seção circular ligado à quatro vigas de aço por meio das abas estendidas (1 .4) de um COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL. [39] Figure 5.3: Perspective view of a concrete pillar (5) of circular section connected to the four steel beams by means of the extended flaps (1 .4) of a SPIRAL STEEL COMPONENT BY HELICOIDAL ARM BAR.
[40] Figura 6.1 : Vista em perspectiva da montagem de uma peça para ligações rígidas entre pilar de concreto e vigas de aço, constituída por COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme com abas estendidas (1 .4), chapas de ligação (1 .1 ) e enrijecedores (1 .2). [40] Figure 6.1: Perspective view of the assembly of a part for rigid connections between concrete pillar and steel beams, consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMATURE BAR with cross section with extended flaps (1 .4), plates connection (1 .1) and stiffeners (1 .2).
[41 ] Figura 6.2: Vista em perspectiva de quatro vigas de aço sendo ligadas rigidamente a um pilar de concreto (5) de seção circular por meio de peça para ligação mista, constituída por COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL soldado a chapas de ligação (1 .1 ) e enrijecedores (1 .2) que formam diafragmas em torno do pilar. [41] Figure 6.2: Perspective view of four steel beams being rigidly connected to a concrete pillar (5) of circular section by means of a piece for mixed connection, consisting of SPIRALED STEEL COMPONENT BY HELICOIDAL ARMATURE BAR welded to sheets connection points (1 .1) and stiffeners (1 .2) that form diaphragms around the column.
[42] Figura 7.1 : Vista em perspectiva da montagem de uma peça para emendas entre segmentos de pilar de concreto, constituída por COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme com abas estendidas (1 .4) e chapa de extremidade (1 .3) com furos e pinos (7) protuberantes. [42] Figure 7.1: Perspective view of the assembly of a part for splicing between concrete pillar segments, consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMOR BAR cruciform with extended flaps (1 .4) and end plate (1 .3) with holes and protruding pins (7).
[43] Figura 7.2: Vista em perspectiva de uma peça para emendas entre segmentos de pilar de concreto, constituída por COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme com abas estendidas (1 .4) e chapa de extremidade (1 .3) com barras longitudinais (4) soldadas perpendicularmente à mesma. [43] Figure 7.2: Perspective view of a piece for splicing between concrete pillar segments, consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMATURE BAR with cruciform section with extended flaps (1 .4) and end plate (1. 3) with longitudinal bars (4) welded perpendicular to it.
[44] Figura 7.3: Vista em perspectiva de dois segmentos de pilar concreto (5) sendo encaixados através de furos e pinos (7) protuberantes nas chapas de extremidade (1 .3). [44] Figure 7.3: Perspective view of two concrete pillar segments (5) being fitted through holes and pins (7) protruding from the end plates (1 .3).
[45] Figura 7.4: Vista em perspectiva de dois segmentos de pilar concreto (5) sendo conectados através das abas estendidas (1 .4) dos COMPONENTES DE AÇO ESPIRALADOS POR BARRA DE ARMADURA HELICOIDAL por meio de chapas de ligação (1 .1 ). [45] Figure 7.4: Perspective view of two concrete pillar segments (5) being connected through the extended flaps (1 .4) of the SPIRALED STEEL COMPONENTS BY HELICOIDAL ARM BAR by connecting plates (1 .1) .
[46] Figura 8.1 : Vista em perspectiva da montagem de uma peça para realização de emenda entre segmentos de pilar de concreto e ligação do mesmo com vigas de aço, constituída por COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme com abas estendidas (1 .4), chapas de ligação (1 .1 ), enrijecedores (1 .2) e chapa de extremidade (1 .3) com abertura circular. [46] Figure 8.1: Perspective view of the assembly of a part to perform splice between segments of concrete pillar and connection of it with steel beams, consisting of SPIRAL STEEL COMPONENT BY HELICIDE ARMATURE BAR with cruciform section with extended flaps (1 .4), connection plates (1 .1), stiffeners (1 .2) and end plate (1 .3) with circular opening.
[47] Figura 8.2: Vista em perspectiva de uma peça para realização de emenda entre segmentos de pilar de concreto e ligação do mesmo com vigas de aço, constituída por COMPONENTE DE AÇO ESPIRALADO POR BARRA DE ARMADURA HELICOIDAL de seção cruciforme com abas estendidas (1 .4), chapas de ligação (1 .1 ), enrijecedores (1 .2) e chapa de extremidade (1 .3) com barras longitudinais (4) soldadas perpendicularmente à mesma. [47] Figure 8.2: Perspective view of a piece for splicing between concrete pillar segments and connecting it with steel beams, consisting of SPIRAL STEEL COMPONENT BY HELICOIDAL ARMATURE BAR of cross section with extended flaps (1 .4), connection plates (1 .1), stiffeners (1 .2) and end plate (1 .3) with longitudinal bars (4) welded perpendicularly to it.
[48] Figura 8.3: Vista em perspectiva de dois segmentos de pilar concreto (5) sendo encaixados por meio de enchimento (8) no espaço formado pelas aberturas das chapas de extremidade (1 .3). [49] Figura 8.4: Vista em perspectiva de dois segmentos de pilar concreto (5) sendo conectados entre si e ligados à quatro vigas de aço através das abas estendidas dos COMPONENTES DE AÇO ESPIRALADOS POR BARRA DE ARMADURA HELICOIDAL e chapas de ligação (1 .1 ). [48] Figure 8.3: Perspective view of two segments of concrete pillar (5) being fitted by means of filling (8) in the space formed by the openings of the end plates (1 .3). [49] Figure 8.4: Perspective view of two concrete pillar segments (5) being connected to each other and connected to the four steel beams through the extended flaps of the SPIRALED STEEL COMPONENTS BY HELICIDE ARMOR BAR and connecting plates (1. 1 ).
[50] De acordo com as figuras 1 .1 a 1 .3, o COMPONENTE DE AÇO COSTURADO POR BARRA DE ARMADURA HELICOIDAL é caracterizado por um perfil ou composição de chapas de aço (1 ), com furos (2) dispostos ao longo do comprimento em torno de um eixo longitudinal, através dos quais é espiralado por uma barra de armadura helicoidal (3), à qual se fixam internamente barras longitudinais (4) e que, ao ser envolvido ou preenchido por concreto (5), constitui um elemento misto. [50] According to figures 1 .1 to 1 .3, the STEEL COMPONENT SEWED BY HELICOIDAL ARM BAR is characterized by a profile or composition of steel sheets (1), with holes (2) arranged along the length around a longitudinal axis, through which it is spiraled by a helical reinforcement bar (3), to which longitudinal bars (4) are internally attached and which, when wrapped or filled with concrete (5), constitutes an element mixed.
[51 ] A conexão mecânica entre o componente de aço (1 ) e o concreto (5) se dá através dos furos (2) que, atravessados pela barra helicoidal (3) e preenchidos pelo concreto (5), constituem uma conexão com funcionamento análogo ao de pinos cisalhados. [51] The mechanical connection between the steel component (1) and the concrete (5) occurs through the holes (2) that, crossed by the helical bar (3) and filled by the concrete (5), constitute a working connection analogous to sheared pins.
[52] De acordo com as figuras 2.1 a 2.12, o componente de aço (1 ) pode ser um perfil ou composição de perfis ou chapas de aço e pode apresentar formas diversas, desde que sua seção transversal proporcione pontos de interseção com o círculo da armadura, permitindo que o mesmo possa ser espiralado pela barra helicoidal (3). Além disso, o componente de aço (1 ) pode apresentar descontinuidades em sua seção transversal, conforme figuras 2.1 1 e 2.12. O concreto (5) pode ser conformado em formato circular ou prismático, maciço ou oco, conforme figuras 2.8 e 2.9, e pode envolver o componente de aço total ou parcialmente ou preenche-lo, caso o componente de aço apresente seção transversal fechada, conforme figura 2.7. [52] According to figures 2.1 to 2.12, the steel component (1) can be a profile or composition of steel profiles or sheets and can have different shapes, as long as its cross section provides points of intersection with the circle of the reinforcement, allowing it to be spiraled by the helical bar (3). In addition, the steel component (1) may have discontinuities in its cross section, according to figures 2.1 1 and 2.12. The concrete (5) can be formed into a circular or prismatic, solid or hollow shape, as shown in figures 2.8 and 2.9, and can involve the steel component totally or partially or fill it, if the steel component presents a closed cross section, as figure 2.7.
[53] De acordo com as figuras 3.1 a 3.5, fôrmas (6) podem ser fixadas ao longo das bordas livres de um componente de aço (1 ) de seção aberta, de modo a reforçar e/ou restringir a flambagem do mesmo durante a fase de ereção da estrutura. Após a concretagem e cura, as formas (6) são removidas, os esforços se redistribuem entre as partes constituintes do elemento misto e a estabilidade do componente de aço (1 ) passa a ser garantida pelo concreto (5). [53] According to figures 3.1 to 3.5, molds (6) can be fixed along the free edges of an open section steel component (1), in order to reinforce and / or restrict its buckling during the erection phase of the structure. After pouring and curing, the forms (6) are removed, the efforts they are redistributed between the constituent parts of the mixed element and the stability of the steel component (1) is now guaranteed by the concrete (5).
[54] De acordo com as figuras 3.5 e 4.4, o componente de aço (1 ) pode se estender ao longo todo o comprimento do elemento estrutural, compondo um elemento misto, ou apenas ao longo de determinado segmento do elemento, compondo uma peça para ligações mistas. [54] According to figures 3.5 and 4.4, the steel component (1) can extend along the entire length of the structural element, making up a mixed element, or only along a certain segment of the element, making up a part for mixed connections.
[55] De acordo com as figuras 5.1 a 5.4, o componente de aço (1 ) pode ter suas extremidades estendidas para fora do concreto (5), formando abas estendidas (1 .4) para compor ligação com outros elementos estruturais. [55] According to figures 5.1 to 5.4, the steel component (1) may have its ends extended out of the concrete (5), forming extended flaps (1 .4) to form a connection with other structural elements.
[56] De acordo com as figuras 6.1 e 6.2, pode-se soldar chapas de ligação (1 .1 ) e enrijecedores (1 .2) às abas estendidas (1 .4) do componente de aço para viabilizar ligações do tipo rígidas, com diafragmas em torno do concreto (5). [56] According to figures 6.1 and 6.2, connection plates (1 .1) and stiffeners (1 .2) can be welded to the extended flaps (1 .4) of the steel component to make rigid connections possible, with diaphragms around the concrete (5).
[57] De acordo com as figuras 7.1 a 7.4, uma chapa de extremidade (1 .3) pode ser perpendicularmente fixada ao topo de um componente de aço (1 ) com abas estendidas (1 .4) e soldada a barras longitudinais (4) para ancoragem no concreto (5), de modo a constituir uma peça que permita realização de emendas entre segmentos de concreto armado, com as emendas sendo realizadas encostando as chapas de extremidade (1 .3) e unindo as abas estendidas (1 .4) de ambos elementos por meio de chapas de ligação (1 .1 ). [57] According to figures 7.1 to 7.4, an end plate (1 .3) can be perpendicularly fixed to the top of a steel component (1) with extended flaps (1 .4) and welded to longitudinal bars (4 ) for anchoring in the concrete (5), in order to constitute a piece that allows to make seams between reinforced concrete segments, with the seams being made by touching the end plates (1 .3) and joining the extended flaps (1 .4 ) of both elements by means of connection plates (1 .1).
[58] De acordo com as figuras 8.1 a 8.4, pode-se, utilizando componente de aço com abas estendidas (1 .4) fixado a chapa de extremidade (1 .3), realizar, simultaneamente, emenda entre segmentos de concreto armado e ligações com outros elementos estruturais, com as abas estendidas (1 .4) de ambos os segmentos de concreto armado sendo ligadas entre si e à outros elementos estruturais através de chapas de ligação (1 .1 ). Enrijecedores (1 .2) podem ser soldados às abas estendidas (1 .4) para formar diafragma em torno do concreto (5). [58] According to figures 8.1 to 8.4, it is possible, using a steel component with extended flaps (1 .4) fixed to the end plate (1 .3), to simultaneously make seam between reinforced concrete segments and connections with other structural elements, with the extended flaps (1 .4) of both reinforced concrete segments being connected to each other and to other structural elements through connection plates (1 .1). Stiffeners (1 .2) can be welded to the extended flaps (1 .4) to form a diaphragm around the concrete (5).
[59] De acordo com as figuras 7.3 e 8.3, furos ou aberturas podem ser feitos na chapa de extremidade (1 .3) e preenchidos com pinos (7) ou meios de enchimento (8) para proporcionar encaixe tipo macho-fêmea e resistir a esforços cortantes no plano da emenda. Os furos ou aberturas na chapa de extremidade devem ser tampados no momento da concretagem. [59] According to figures 7.3 and 8.3, holes or openings can be made in the end plate (1 .3) and filled with pins (7) or means of filler (8) to provide a male-female fitting and withstand cutting forces in the splice plane. The holes or openings in the end plate must be plugged when pouring.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRBR1020180699229 | 2018-09-27 | ||
| BR102018069922A BR102018069922A2 (en) | 2018-09-27 | 2018-09-27 | spiral steel component by helical reinforcement bar for composition of elements and mixed connections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020061663A1 true WO2020061663A1 (en) | 2020-04-02 |
Family
ID=69950325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/BR2019/050246 Ceased WO2020061663A1 (en) | 2018-09-27 | 2019-07-03 | Steel component spiralled along a helical reinforcement bar for forming mixed connections and elements |
Country Status (2)
| Country | Link |
|---|---|
| BR (1) | BR102018069922A2 (en) |
| WO (1) | WO2020061663A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113216378A (en) * | 2021-05-25 | 2021-08-06 | 朱凤起 | Prefabricated part with auxiliary steel bars and manufacturing method and connecting structure thereof |
| US11452322B2 (en) | 2015-11-16 | 2022-09-27 | Q Sports Science, LLC | Traumatic brain injury protection devices |
| US11478253B2 (en) | 2013-03-15 | 2022-10-25 | Tbi Innovations Llc | Methods and devices to reduce the likelihood of injury from concussive or blast forces |
| US20230139840A1 (en) * | 2021-10-29 | 2023-05-04 | Zhengzhou University | FRP Composite Spiral Stirrup Confined Concrete Column And Compression Design Method Thereof |
| US11696766B2 (en) | 2009-09-11 | 2023-07-11 | Tbi Innovations, Llc | Methods and devices to reduce damaging effects of concussive or blast forces on a subject |
| US11969033B2 (en) | 2016-03-02 | 2024-04-30 | Q30 Sports Science, Llc | Methods and devices to reduce damaging effects of concussive or blast forces on a subject |
| CN121161931A (en) * | 2025-10-20 | 2025-12-19 | 上海宝冶集团有限公司 | Annular hinged joint structure capable of transmitting bending moment in beam around column and mounting process thereof |
| US12702425B2 (en) | 2009-09-11 | 2026-08-11 | Tbi Innovations, Llc | Devices and systems to mitigate traumatic brain and other injuries caused by concussive or blast forces |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798867A (en) * | 1972-03-02 | 1974-03-26 | B Starling | Structural method and apparatus |
| EP0215148A1 (en) * | 1985-09-17 | 1987-03-25 | Wolfhart Dr.-Ing. Andrä | Connecting means for a composite concrete supporting construction |
| US6192647B1 (en) * | 1999-04-15 | 2001-02-27 | Kjell L. Dahl | High strength grouted pipe coupler |
| JP3116896U (en) * | 2005-03-18 | 2005-12-22 | 潤弘精密工程事業股▲分▼有限公司 | Assembly structure of spiral stirrup and steel frame |
| KR101565463B1 (en) * | 2014-05-28 | 2015-11-03 | 주식회사 액트파트너 | Steel assembly of column for filling concrete |
| CN205012561U (en) * | 2015-08-28 | 2016-02-03 | 风范绿色建筑（常熟）有限公司 | High strength square steel tube concrete column |
| CN106639149A (en) * | 2016-10-11 | 2017-05-10 | 广西大学 | Core constraint type open-spandrel section steel concrete combination column and manufacturing method |
| CN108360370A (en) * | 2018-05-11 | 2018-08-03 | 重庆大学 | A kind of prefabricated steel tube confinement reinforced concrete bridge pier and cushion cap connecting node |
| BR202017024820U2 (en) * | 2017-11-20 | 2019-06-04 | Otavio Prates Aguiar | COMPONENT OF STEEL STITCHED BY HELICOIDAL ARMOR BAR FOR COMPOSITION OF MIXED ELEMENTS AND CONNECTIONS |
-
2018
- 2018-09-27 BR BR102018069922A patent/BR102018069922A2/en not_active Application Discontinuation
-
2019
- 2019-07-03 WO PCT/BR2019/050246 patent/WO2020061663A1/en not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3798867A (en) * | 1972-03-02 | 1974-03-26 | B Starling | Structural method and apparatus |
| EP0215148A1 (en) * | 1985-09-17 | 1987-03-25 | Wolfhart Dr.-Ing. Andrä | Connecting means for a composite concrete supporting construction |
| US6192647B1 (en) * | 1999-04-15 | 2001-02-27 | Kjell L. Dahl | High strength grouted pipe coupler |
| JP3116896U (en) * | 2005-03-18 | 2005-12-22 | 潤弘精密工程事業股▲分▼有限公司 | Assembly structure of spiral stirrup and steel frame |
| KR101565463B1 (en) * | 2014-05-28 | 2015-11-03 | 주식회사 액트파트너 | Steel assembly of column for filling concrete |
| CN205012561U (en) * | 2015-08-28 | 2016-02-03 | 风范绿色建筑（常熟）有限公司 | High strength square steel tube concrete column |
| CN106639149A (en) * | 2016-10-11 | 2017-05-10 | 广西大学 | Core constraint type open-spandrel section steel concrete combination column and manufacturing method |
| BR202017024820U2 (en) * | 2017-11-20 | 2019-06-04 | Otavio Prates Aguiar | COMPONENT OF STEEL STITCHED BY HELICOIDAL ARMOR BAR FOR COMPOSITION OF MIXED ELEMENTS AND CONNECTIONS |
| CN108360370A (en) * | 2018-05-11 | 2018-08-03 | 重庆大学 | A kind of prefabricated steel tube confinement reinforced concrete bridge pier and cushion cap connecting node |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11696766B2 (en) | 2009-09-11 | 2023-07-11 | Tbi Innovations, Llc | Methods and devices to reduce damaging effects of concussive or blast forces on a subject |
| US12285177B2 (en) | 2009-09-11 | 2025-04-29 | Tbi Innovations, Llc | Methods and devices to reduce damaging effects of concussive or blast forces on a subject |
| US12702425B2 (en) | 2009-09-11 | 2026-08-11 | Tbi Innovations, Llc | Devices and systems to mitigate traumatic brain and other injuries caused by concussive or blast forces |
| US11478253B2 (en) | 2013-03-15 | 2022-10-25 | Tbi Innovations Llc | Methods and devices to reduce the likelihood of injury from concussive or blast forces |
| US12137917B2 (en) | 2013-03-15 | 2024-11-12 | Tbi Innovations, Llc | Methods and devices to reduce the likelihood of injury from concussive or blast forces |
| US11452322B2 (en) | 2015-11-16 | 2022-09-27 | Q Sports Science, LLC | Traumatic brain injury protection devices |
| US12329219B2 (en) | 2015-11-16 | 2025-06-17 | Q30 Sports Science, Llc | Traumatic brain injury protection devices |
| US11969033B2 (en) | 2016-03-02 | 2024-04-30 | Q30 Sports Science, Llc | Methods and devices to reduce damaging effects of concussive or blast forces on a subject |
| CN113216378A (en) * | 2021-05-25 | 2021-08-06 | 朱凤起 | Prefabricated part with auxiliary steel bars and manufacturing method and connecting structure thereof |
| US20230139840A1 (en) * | 2021-10-29 | 2023-05-04 | Zhengzhou University | FRP Composite Spiral Stirrup Confined Concrete Column And Compression Design Method Thereof |
| CN121161931A (en) * | 2025-10-20 | 2025-12-19 | 上海宝冶集团有限公司 | Annular hinged joint structure capable of transmitting bending moment in beam around column and mounting process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| BR102018069922A2 (en) | 2020-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR102018069922A2 (en) | spiral steel component by helical reinforcement bar for composition of elements and mixed connections | |
| US10260225B2 (en) | Precast concrete member with prefabricated plate and fixing channels | |
| KR101499343B1 (en) | Closed Built-up Beam, Hybrid Composite Beam and Strucutures using the same | |
| KR101259138B1 (en) | Rahmen bridge with structure for joining beams and walls | |
| CN106759865A (en) | A kind of U-shaped steel plate combination beam framework of steel core concrete column | |
| JP7670753B2 (en) | Beam structure, support member for beam reinforcement, and beam reinforcement method | |
| TW201739994A (en) | Column-beam joint structure and steel reinforced concrete column | |
| JP2020111930A (en) | Wooden beam joint structure | |
| KR101697004B1 (en) | Coupling Beam Reinforcement Structure Using Angle Member | |
| JP6353637B2 (en) | Reinforcement structure of beam-column joint | |
| CN105926774A (en) | End plate connection integral type combination frame beam and combination method thereof | |
| US20220325523A1 (en) | Column formwork improvements | |
| JP2021085189A (en) | Beam-column joining part structure | |
| CN102155051B (en) | Method and structure for connecting concrete rib girder and nodes of framework column | |
| BR202017024820U2 (en) | COMPONENT OF STEEL STITCHED BY HELICOIDAL ARMOR BAR FOR COMPOSITION OF MIXED ELEMENTS AND CONNECTIONS | |
| JP7381307B2 (en) | Column beam joint structure | |
| CN212053343U (en) | Detachable infill wall combination system | |
| JP2000034780A (en) | Pillar structure | |
| CN211548386U (en) | A double-chamber rectangular steel tube high-strength concrete column | |
| JP2021085187A (en) | Beam-column joining part structure | |
| CN205776743U (en) | A kind of end plate connection monoblock type Composite frame beam | |
| JP2006200270A (en) | Joining structure and joining method | |
| CN206941883U (en) | Assembled is without interior weldering combined steel plate shearing force wall | |
| CN104131631A (en) | Structure of top layer end node of anti-seismic framework and construction method of structure | |
| KR101244894B1 (en) | Structure for joining beams and walls |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19867930 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19867930 Country of ref document: EP Kind code of ref document: A1 |