EP1577457A1 - Metalgitterträger für Gebäude und Bauweise unter dessen Verwendung - Google Patents

Metalgitterträger für Gebäude und Bauweise unter dessen Verwendung Download PDF

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Publication number
EP1577457A1
EP1577457A1 EP05102088A EP05102088A EP1577457A1 EP 1577457 A1 EP1577457 A1 EP 1577457A1 EP 05102088 A EP05102088 A EP 05102088A EP 05102088 A EP05102088 A EP 05102088A EP 1577457 A1 EP1577457 A1 EP 1577457A1
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EP
European Patent Office
Prior art keywords
metal
trestles
coupled
trestle
stringers
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.)
Withdrawn
Application number
EP05102088A
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English (en)
French (fr)
Inventor
Giuseppe Suraci
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1577457A1 publication Critical patent/EP1577457A1/de
Withdrawn legal-status Critical Current

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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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02—Continuous barriers extending along roads or between traffic lanes
    • E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
    • E01F15/0461—Supports, e.g. posts
    • 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
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional [3D] framework structures
    • E04B2001/1978—Frameworks assembled from preformed subframes, e.g. pyramids
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0495—Truss like structures composed of separate truss elements the truss elements being located in several non-parallel surfaces

Definitions

  • the present invention concerns a substantially plane metal trestle for building constructions and a construction system using a plurality of said metal trestles.
  • the latter consist of metal profiles, such as L bars or plates, easily found on the market and can be arranged and connected one to the other so as to form beams and/or pillars, by means of conventional clamping elements, such as for example bolts, nails or other.
  • the size of the trestles according to the present invention can be standardized, making them more economical.
  • Such structures mainly consisting of beams and pillars, can be achieved with profiles of different cross sections: HE, IPE, UPN, L-shaped, T-shaped; they can be used individually, or joined together by means of bolting, or welding, according to their size and the loads they have to support.
  • the metal elements have the disadvantage, however, that they cannot easily be integrated with the concrete structures cast on site, generally used to achieve the secondary structures of the buildings (floors), since the solid cores of the profiles prevent the passage both of the concrete and also of the relative reinforcements.
  • the lower stringer is formed by a base sheet, perpendicular to the lattice, and/or by at least two metal round pieces, while the upper stringer is formed by at least two metal round pieces.
  • the upper and lower stringers are welded at opposite ends to the metal connection elements.
  • a purpose of the present invention is to achieve a metal trestle which consists of simple elements, easily found on the market, and can constitute a modular element able to be coupled with at least another modular element of the same or similar type, in order to achieve structures both completely metal and also of the mixed steel-concrete type.
  • the present Applicant has devised and embodied the metal trestle according to the present invention in order to overcome the shortcomings of the state of the art and to obtain these and other purposes.
  • the metal trestle for building constructions comprises a first stringer, a second stringer and a central connection element between the two stringers.
  • Each of the two stringers consists of a metal profile having at least a plane surface on which the above central connection element is attached.
  • the plane surfaces of the two stringers are co-planar. In this way, each metal trestle is substantially plane, or lying on a plane.
  • the metal profiled elements that make up the stringers are plates or L bars, while the central connection element is a metal round piece or other profile of a different section other than circular, having a substantially zigzag development and welded to the plane surfaces of the metal profiled elements in correspondence with its variations in direction.
  • the metal round piece can be welded inside the angle formed by the two wings of the angular element, or outside it.
  • the trestles according to the present invention can be applied both to make reinforced concrete structures and also to make metal trestled structures.
  • the traditional metal reinforcement of the beams, and possibly that of the pillars is totally or partly replaced with one or more trestles according to the present invention, which are combined or arranged so as to form a box-like element.
  • Each trestle can advantageously be made in a workshop or production plant, preferably by means of automated machines.
  • the connection of the central element to the upper and lower bar is performed by welding, for example electro-welding.
  • the metal profiles, angular or flat, are provided with through holes by means of which, with bolts, threaded bars or nails, they can be joined to other similar metal profiles.
  • partial pre-fabrication is also provided with a cast of concrete into the lower part of the section.
  • the trestles according to the present invention allow to implement a new construction system to make frames or structures both totally metal and also in reinforced concrete.
  • the new construction system advantageously differs from conventional systems:
  • connection bolts or alternatively the threaded bars with double nut, not only make the trestles solid with each other but also perform, if properly proportioned, the function of connectors between the metal elements and the concrete, in order to improve adherence.
  • a trestle 10 substantially plane, according to the present invention comprises an upper stringer 11 and a lower stringer 12, parallel to each other and made with two angular metal profiles provided with through holes 13 and 15.
  • the two stringers 11 and 12, which have plane and co-planar surfaces, are mutually connected by means of wall rods 16, consisting of a zigzag shaped metal round piece.
  • the latter in correspondence with its variations in direction, is welded to the plane and co-planar surfaces of the stringers 11 and 12, so as to be arranged inside the right angle formed by the wings of the angular elements.
  • a trestle 110 in a trestle 110 according to the present invention the wall rods 16 are welded outside the right angle formed by the angular stringers 11 and 12, instead of inside the wings of said angle.
  • a trestle 210 in a trestle 210 according to the present invention the parallel stringers 211 and 212 are made with flat metal profiles and the wall rods 16 are welded onto one of their plane surfaces.
  • Each metal trestle 10, 110, 210 can advantageously be made at a specialized work shop.
  • connection bolts 20 and threaded bars 21, or nails are easily joined together using connection bolts 20 and threaded bars 21, or nails (not shown in the drawings), possibly with the aid of conventional elements that are easily found on the market, such as intermediate plates or spacers 22, flat wall rods 23, bayonet joints 25, supporting cross-pieces 26, diagonal flat bracing rods 27 and cross stiffening brackets 29.
  • fig. 7 shows a first structure 30 consisting of two coupled trestles 10, coupled together and with intermediate plates 22 interposed.
  • Fig. 8 shows a second structure 31 consisting of two bracketed coupled trestles 10, that is, coupled with cross stiffening brackets 29 interposed.
  • Fig. 9 shows a third structure 32 consisting of two trestles 10, arranged laterally, and a trestle 210 arranged centrally and parallel to the lateral trestles 10.
  • the trestles 10 and 210 are coupled together by means of bolts 20 and threaded bars 21, with cross stiffening brackets 29 and intermediate plates 22 interposed.
  • Fig. 10 shows a fourth structure 33, of the box-like type and with a substantially square cross section, which consists of four trestles 10 arranged in a quadrilateral, with the angular elements 11 and 12 directly coupled by means of bolts 20, without any cross stiffening brackets 29 and/or intermediate plates 22 interposed.
  • Fig. 11 shows a fifth structure 34, of the box-like type and with a substantially square cross section, which consists of four trestles 10 arranged in a quadrilateral, but with the different angular elements 11 and 12 coupled by means of bolts 20, with intermediate plates 22 interposed.
  • Fig. 12 shows a sixth structure 35, similar to the fifth structure 34, but where the lower trestle 10 is arranged in a turned over position compared with structure 34.
  • Fig. 13 shows a seventh structure 36, similar to the fifth structure 34, but where a trestle 210 with flat metal profiles 211 and 212 is used instead of a trestle 10 with angular elements.
  • Fig. 14 shows an eighth structure 37 similar to the third structure 32, but where two pairs of horizontal trestles 10 are used instead of the cross stiffening brackets 29 and where the intermediate plates 22 are arranged between the vertical and horizontal trestles.
  • box beam 40 made partially inside the floor using three trestles 10 and a trestle 110, joined together so as to form a structure similar, but not equal to the fifth structure 35 as described above.
  • the partial prefabrication of the beam 40 can advantageously occur in the prefabrication workshop by performing the following operations:
  • the beam 40 is installed on site, by means of the following steps, described with reference to figs. 16 and 17, in which two vertical supporting elements 50 and 51 are shown, made for example with any traditional system:
  • a perimeter box beam 62 made partially inside the floor, which consists of three trestles 10, respectively 10b, 10c, 10d, and a trestle 210 which makes possible to not go beyond the outer edges 63 of the vertical supports 50 and 51.
  • a box beam made totally inside the floor 65 which consists of four trestles, respectively 10a, 10b, 10c, 10d.
  • the assembly of the four metal trestles is performed in the same way as indicated in example 1.
  • the thickness of the concrete 66, cast in the pre-fabrication site in this case is limited to the height of the lower stringers 12 of the trestles 10a and 10b.
  • the assembly on site and the completion on site differ from what was indicated in example n° 1 in that for the provisional support of the floors 55 the wings 12a of the external angular elements of the lower stringers 12 are used, which for this purpose can be chosen on uneven wings, with the wings 12a wider than the others.
  • This variant obviously, can be adopted in all applications.
  • Example No. 4 Frame where the pillar reinforcement consists of box trestles
  • a base reinforcement of a pillar 70 consists for example of a box-like structure similar to the fifth structure 34 (fig. 11), which can possibly be integrated with longitudinal bars and brackets, not shown in the drawings.
  • figs. 26, 27, 28 and 29 show a coupled beam 80, with the wall rods 16 phased, in the front view (fig. 27), transverse (fig. 28) and from above (fig. 29).
  • Fig. 26 shows the same beam 80 during its attachment to external constraints 81.
  • Figs. 30 and 31 show a coupled beam 82 with the wall rods 16 counterphased.
  • This solution offers the advantage that, for the frequent case of normal loads to the axis of the beam 82, any cross section of the beam intersects a wall rod 16; this circumstance contributes to improve the local stability of equilibrium.
  • the holes, needed to couple the trestles 10, must be staggered by about 90° with respect to the position shown for cases previously seen.
  • the static behavior is analyzed of a horizontal beam deriving from a beam 40 defined by the following data;

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP05102088A 2004-03-18 2005-03-16 Metalgitterträger für Gebäude und Bauweise unter dessen Verwendung Withdrawn EP1577457A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD20040049 2004-03-18
IT000049A ITUD20040049A1 (it) 2004-03-18 2004-03-18 Traliccio metallico per costruzioni edili e sistema di costruzione utilizzante detto traliccio

Publications (1)

Publication Number Publication Date
EP1577457A1 true EP1577457A1 (de) 2005-09-21

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Family Applications (1)

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EP05102088A Withdrawn EP1577457A1 (de) 2004-03-18 2005-03-16 Metalgitterträger für Gebäude und Bauweise unter dessen Verwendung

Country Status (2)

Country Link
EP (1) EP1577457A1 (de)
IT (1) ITUD20040049A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105019360A (zh) * 2015-07-22 2015-11-04 中国能源建设集团江苏省电力建设第三工程有限公司 一种基于高空履带吊栈桥的施工方法
IT201600119893A1 (it) * 2016-12-05 2018-06-05 Studio Mangoni Srl Un sistema semiprefabbricato per la realizzazione di pareti composte in acciaio-calcestruzzo
CN108412196A (zh) * 2018-05-16 2018-08-17 中铁十局集团第五工程有限公司 连续梁通用的顶板模板组件及连续梁顶板的施工方法
CN114278004A (zh) * 2022-01-14 2022-04-05 中科绿筑(北京)科技有限公司 低层装配式压型钢板轻混复合墙板、连接结构及施工方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE16482E (en) * 1926-11-23 Metallic structure
CH666929A5 (en) * 1985-01-29 1988-08-31 Bernold Ag Lattice girder to support tunnel wall - has at least three longitudinal sectional steel members with flat sides connected via e.g. U=shaped crossing diagonal bars welded thereto
US4836436A (en) * 1987-08-17 1989-06-06 Gerald McDonald Method of manufacturing a fabricated open web steel joist
US4937997A (en) * 1987-03-30 1990-07-03 Thomas Jr William G Open web Z-shaped structural metal beam
EP0422875A2 (de) * 1989-10-07 1991-04-17 Ward Building Systems Limited Raumfachwerk

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE16482E (en) * 1926-11-23 Metallic structure
CH666929A5 (en) * 1985-01-29 1988-08-31 Bernold Ag Lattice girder to support tunnel wall - has at least three longitudinal sectional steel members with flat sides connected via e.g. U=shaped crossing diagonal bars welded thereto
US4937997A (en) * 1987-03-30 1990-07-03 Thomas Jr William G Open web Z-shaped structural metal beam
US4836436A (en) * 1987-08-17 1989-06-06 Gerald McDonald Method of manufacturing a fabricated open web steel joist
EP0422875A2 (de) * 1989-10-07 1991-04-17 Ward Building Systems Limited Raumfachwerk

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105019360A (zh) * 2015-07-22 2015-11-04 中国能源建设集团江苏省电力建设第三工程有限公司 一种基于高空履带吊栈桥的施工方法
CN105019360B (zh) * 2015-07-22 2016-06-29 中国能源建设集团江苏省电力建设第三工程有限公司 一种基于高空履带吊栈桥的施工方法
IT201600119893A1 (it) * 2016-12-05 2018-06-05 Studio Mangoni Srl Un sistema semiprefabbricato per la realizzazione di pareti composte in acciaio-calcestruzzo
CN108412196A (zh) * 2018-05-16 2018-08-17 中铁十局集团第五工程有限公司 连续梁通用的顶板模板组件及连续梁顶板的施工方法
CN108412196B (zh) * 2018-05-16 2023-05-23 中铁十一局集团第五工程有限公司 连续梁通用的顶板模板组件及连续梁顶板的施工方法
CN114278004A (zh) * 2022-01-14 2022-04-05 中科绿筑(北京)科技有限公司 低层装配式压型钢板轻混复合墙板、连接结构及施工方法

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