EP3760813A1 - Élément d'espacement pour le coffrage de murs - Google Patents

Élément d'espacement pour le coffrage de murs Download PDF

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Publication number
EP3760813A1
EP3760813A1 EP20183278.9A EP20183278A EP3760813A1 EP 3760813 A1 EP3760813 A1 EP 3760813A1 EP 20183278 A EP20183278 A EP 20183278A EP 3760813 A1 EP3760813 A1 EP 3760813A1
Authority
EP
European Patent Office
Prior art keywords
spacer element
face
coupling
central portion
locking means
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Withdrawn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
EP20183278.9A
Other languages
German (de)
English (en)
Inventor
Diego PALAZZOLI
Alessandro PALAZZOLI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Termofort Srl
Original Assignee
Termofort Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Termofort Srl filed Critical Termofort Srl
Publication of EP3760813A1 publication Critical patent/EP3760813A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/075—Tying means, the tensional elements of which are fastened or tensioned by other means
    • E04G17/0751—One-piece elements
    • E04G17/0754—One-piece elements remaining completely or partially embedded in the cast material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/07—Tying means, the tensional elements of which are fastened or tensioned by means of wedge-shaped members
    • E04G17/0707—One-piece elements
    • E04G17/0721—One-piece elements remaining completely or partially embedded in the cast material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/075—Tying means, the tensional elements of which are fastened or tensioned by other means
    • E04G17/0755—Tying means, the tensional elements of which are fastened or tensioned by other means the element consisting of several parts
    • E04G17/0758—Tying means, the tensional elements of which are fastened or tensioned by other means the element consisting of several parts remaining completely or partially embedded in the cast material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/12—Tying means; Spacers ; Devices for extracting or inserting wall ties with arms engaging the forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8652—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties located in the joints of the forms

Definitions

  • the present invention relates to a construction system for building, which may be used to create load-bearing structures in reinforced concrete and to create cladding of existing frames.
  • Construction systems are currently known which allow the construction of reinforced concrete structures on site. These systems provide for a casing (so-called formwork) to contain fluid concrete during casting.
  • formwork types of formwork made by means of opposing modular panels, between which the concrete is cast are known.
  • the metal reinforcement elements necessary for the construction of the structure are also arranged between the panels.
  • the panels are supported by a cage made up of metal nets, spaced apart and joined by special means of connection (so-called straps).
  • straps special means of connection
  • the strap is in particular constituted by a longitudinal metal element, interposed between a pair of side-by-side panels ensuring their mutual distance.
  • patent application EP 06425413.9 An example of known type of strap is illustrated in patent application EP 06425413.9 .
  • this application describes a support element consisting of a metal core and two ends which are inserted between side-by-side panels and keep the same panels stably positioned.
  • the strap protrudes outside the volume occupied by the solidified concrete.
  • Utility model application KR 20180001037 illustrates a metal strap comprising an external profile and a removable internal profile. In use, the strap is positioned alongside the formwork panels without protruding externally with respect to them.
  • the panels are removed and the ends of the straps protrude from the surface of the solidified concrete.
  • the external profile of the straps is removed allowing a part of the material to be recovered.
  • the problem of the prior art is the difficulty in positioning the metal cage.
  • the metal cage is only placed on the straps that space the panels and therefore a high level of precision in positioning is not guaranteed.
  • the object of the present invention is to solve the aforementioned problems, devising a spacer element for building construction which allows to erect a formwork for the buildings, in particular ensuring precision in the positioning of the structure.
  • a further object of the invention is to provide a spacer element which is capable of avoiding the onset of thermal bridges.
  • Another object of the invention is to provide a spacer element which allows the construction of a structure without surface imperfections.
  • a further object of the invention is to provide a spacer element which ensures ease and precision of insertion of supporting metal structures such as for example a metal construction cage.
  • a further object of the present invention is to provide a spacer element which allows the construction of a highly stable structure against earthquakes.
  • An additional object of the invention is to provide a spacer element which allows rapid construction of the structure.
  • a further object of the invention is to provide a spacer element which enables easy positioning of one or more reinforcement elements.
  • a further object of the invention is to provide a spacer element which allows the construction of a structure with high acoustic insulation.
  • Another object of the invention is to provide a spacer element that acts as a "concrete cover", giving the erected structure a greater fire resistance.
  • a further object of the invention is to provide a spacer element for the building industry with great constructive and functional simplicity, having certainly reliable operation, which is versatile in use, as well as relatively cheap.
  • the spacer element for a building structure comprises a body forming a central portion which extends along a longitudinal direction and two respective end portions.
  • each said end portion forms a means for coupling to a respective reinforcement element, and forms as well, externally to said coupling means, abutment means comprising a flat face.
  • said flat face is substantially orthogonal to said longitudinal direction, and is suitable for receiving in support a corresponding flat surface of a panel.
  • each said end portion also comprises a locking means, projecting from said face, so as to secure said panel against said face.
  • said central portion of said body has at least one longitudinal rib in relief with respect to at least one face of said body.
  • said central portion is made of a first material.
  • said locking means is made of a second material.
  • Preferably said first material is different from said second material.
  • said body is made of plastic material and said locking means is made of metal material.
  • said locking means comprise a lamina which forms a coupling end facing said abutment means and a coupling end for anchoring to a metal net.
  • said lamina is suitable for being arranged, on a substantially horizontal plane.
  • said lamina has a width substantially corresponding to the width of said central portion.
  • said coupling end is shaped like a hook.
  • said coupling end is bent inwards, forming a U-shape in section.
  • said coupling means comprise a sleeve structure provided with a through hole.
  • said through hole has an axis orthogonal to said longitudinal direction of the spacer element.
  • said face has an input channel communicating with an area for inserting said coupling end.
  • said abutment means form an external surface facing the central portion.
  • connection extends, which joins the sleeve structure.
  • the sleeve structure has a larger diameter than the width of the central portion.
  • the sleeve structure has a surface connected to respective longitudinal edges of the central portion.
  • the central portion, the end portion and the coupling means is made as a monolithic component.
  • the abutment means has a pair of opposing concavities.
  • each concavity has prismatic shape.
  • the concavities have an axis substantially orthogonal with respect to the longitudinal direction of said central portion.
  • said input channel comprises or consists of a slot.
  • fixing means are positioned to constrain the position of the said coupling end of the said locking means.
  • a construction system for building construction comprising:
  • said locking means comprise a lamina which forms a coupling end facing said abutment means and a hook-shaped coupling end for anchoring to a metal net.
  • said body is made of composite material.
  • said longitudinal ribs of said central portion are positioned in such a way that said central portion has a cross-sectional shape.
  • the spacer element 1 for building construction according to the invention is generally indicated with reference number 1.
  • the spacer element 1 comprises a central portion 2 and two respective end portions 3.
  • the central portion 2 extends longitudinally along a direction A, presenting a substantially uniform profile along its entire extension.
  • the central portion 2 has a flattened shape, so as to form two opposite faces, in use, an upper face 22 and a lower face 23. More preferably, the upper face 22 and the lower face 23 have respective longitudinal reinforcement ribs 21, so that the central portion 2 has a cross shape in cross-section.
  • Each end portion 3 forms a coupling means 4 to a reinforcement element 6, for example a metal rod.
  • the coupling means 4 comprise a through hole 41, suitable for receiving the metal rod 6.
  • the through hole 41 has an axis B orthogonal to the direction A, so that in use, the axis B is arranged in a substantially vertical direction.
  • the hole 41 has a circular section.
  • the spacer element 1 forms a sleeve structure 42, preferably having an external diameter greater than the width of the central portion 2.
  • the sleeve 42 has an external surface connected to respective longitudinal edges of the central portion 2.
  • Each end portion 3 also forms an abutment means 5 externally to the sleeve 42.
  • the abutment means 5 comprise a prismatic, preferably hollow structure, which forms a flat face 54, substantially orthogonal to the longitudinal direction A.
  • the flat face 54 is capable of receiving in support a corresponding flat surface of a panel 9, of the type known to the person skilled in the art.
  • the prismatic structure also forms an external surface 51, facing the central portion 2.
  • a junction 52 extends from the external surface 51, which joins the sleeve 42 in such a way as to delimit, with the sleeve 42, an area C.
  • the flat face 54 has an input channel 55, preferably a slot.
  • the slot 55 enables the insertion of locking means 56 in the end portion 3, which protrude from the face 54, so as to fix the panel 9 against the same face 54.
  • the abutment means 5 has a pair of concavities 50, for example with a prismatic shape, positioned opposite to the slot 55 and with an axis substantially orthogonal with respect to the direction A.
  • the locking means 56 comprises a lamina, preferably made of metal. The lamina 56 forms a coupling end 57 facing the abutment means 5 and a hook-shaped coupling end 58, protruding externally with respect to the flat face 54.
  • the end 57 is inserted in the slot 55, and secured to the respective end portion 3 of the spacer element 1 at the area C, by means of fastening means 53, for example screw means.
  • the opposite coupling end 58 enables the connection of the lamina 56 to a metal net 7.
  • the metal net 7 is a structure comprising a plurality of single meshes 8 identified by an intertwining of suitably positioned rods.
  • a mesh 8 of the net 7 cooperates with the spacer element 1 to support and keep at least one panel 9 in position.
  • the panel 9 is a solid with a prismatic shape comprising an external face 10 which is flat and substantially orthogonal to the direction A which, in use, faces the net 7.
  • the panel 9 comprises an internal face 11 that is flat and substantially parallel to the face 54 of the abutment means 5.
  • each panel 9 is positioned with the perimeter of the external face 10 at the perimeter formed by one or more meshes 8 of the net 7.
  • the volume between the net 7 and the face 54 defines an insertion space 12, so that, in use, the distance between the net 7 and the face 54 substantially corresponds to the depth of the panel.
  • the lamina 56 is inserted into the slot 55 until the end 57 is placed inside the area C in correspondence with the fastening means 53 so that in use, the latter firmly holds the lamina 56 in the inserted position.
  • each coupling portion 58 is inserted into one side of a single mesh 8, allowing the spacer element to be anchored to the nets 7.
  • Each panel 9 is positioned in the insertion space 12, in particular in such a way that the external face 10 of the same panel 9 rests on at least one mesh 8 of the net 7 while the internal face 11 of the panel 9, opposite to the internal face 10, reaches in abutment with the same face 54.
  • the coupling end 58 does not protrude externally with respect to the external face 10 of the panel but remains coupled to one side of the mesh 8 of the net 7 in a substantially coplanar way with the same external face 10.
  • panels 9 may be placed side by side or superimposed in a modular way to erect structures that are more extended in length or height.
  • the building system, object of the invention differs from the prior art due to the synergistic effect offered by the cooperation between the locking means 56 and the face 54.
  • the panel 9, in use is housed so as to rest simultaneously on both the locking means 56 and on the face 54.
  • Said diversifying feature solves the technical problem of providing a spacer element for building construction that may be positioned in a precise and easy manner.
  • the materials used, as well as the shape and dimensions, may change according to the requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
EP20183278.9A 2019-07-02 2020-06-30 Élément d'espacement pour le coffrage de murs Withdrawn EP3760813A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102019000010734A IT201900010734A1 (it) 2019-07-02 2019-07-02 Sistema costruttivo per l’edilizia

Publications (1)

Publication Number Publication Date
EP3760813A1 true EP3760813A1 (fr) 2021-01-06

Family

ID=68426688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20183278.9A Withdrawn EP3760813A1 (fr) 2019-07-02 2020-06-30 Élément d'espacement pour le coffrage de murs

Country Status (2)

Country Link
EP (1) EP3760813A1 (fr)
IT (1) IT201900010734A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1684499A1 (de) * 1967-12-06 1971-10-14 Tempes Geb Manthey Erna Abstandhalter fuer eine Mantelbetonwand
EP0118374A2 (fr) * 1983-02-08 1984-09-12 Etablissements PATURLE Système constructif utilisant des coffrages perdus
US20010027631A1 (en) * 1998-01-16 2001-10-11 Moore James Daniel Latching system for components used in forming concrete structures
JP2008095382A (ja) * 2006-10-12 2008-04-24 Asahi Kasei Homes Kk ジョイント部材及び型枠間隔保持具
KR20180001037A (ko) 2016-06-24 2018-01-04 (주) 정산인터내셔널 수분전이 특성이 우수한 신발원단 제조방법
FR3058745A1 (fr) * 2016-11-16 2018-05-18 Guillaume Raymond Entretoise pour coffrage de mur en beton arme et coffrage associe.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1684499A1 (de) * 1967-12-06 1971-10-14 Tempes Geb Manthey Erna Abstandhalter fuer eine Mantelbetonwand
EP0118374A2 (fr) * 1983-02-08 1984-09-12 Etablissements PATURLE Système constructif utilisant des coffrages perdus
US20010027631A1 (en) * 1998-01-16 2001-10-11 Moore James Daniel Latching system for components used in forming concrete structures
JP2008095382A (ja) * 2006-10-12 2008-04-24 Asahi Kasei Homes Kk ジョイント部材及び型枠間隔保持具
KR20180001037A (ko) 2016-06-24 2018-01-04 (주) 정산인터내셔널 수분전이 특성이 우수한 신발원단 제조방법
FR3058745A1 (fr) * 2016-11-16 2018-05-18 Guillaume Raymond Entretoise pour coffrage de mur en beton arme et coffrage associe.

Also Published As

Publication number Publication date
IT201900010734A1 (it) 2021-01-02

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