[go: up one dir, main page]

WO2013177715A1 - Adaptateurs de barre d'armature pour appareil de revêtement de structure et appareil de revêtement de structure incorporant des adaptateurs de barre d'armature - Google Patents

Adaptateurs de barre d'armature pour appareil de revêtement de structure et appareil de revêtement de structure incorporant des adaptateurs de barre d'armature Download PDF

Info

Publication number
WO2013177715A1
WO2013177715A1 PCT/CA2013/050423 CA2013050423W WO2013177715A1 WO 2013177715 A1 WO2013177715 A1 WO 2013177715A1 CA 2013050423 W CA2013050423 W CA 2013050423W WO 2013177715 A1 WO2013177715 A1 WO 2013177715A1
Authority
WO
WIPO (PCT)
Prior art keywords
rebar
standoffs
standoff
connector
lining
Prior art date
Application number
PCT/CA2013/050423
Other languages
English (en)
Inventor
George David Richardson
Semion Krivulin
Zi Li FANG
Original Assignee
Cfs Concrete Forming Systems Inc.
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 Cfs Concrete Forming Systems Inc. filed Critical Cfs Concrete Forming Systems Inc.
Publication of WO2013177715A1 publication Critical patent/WO2013177715A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/166—Connectors or means for connecting parts for reinforcements the reinforcements running in different directions
    • E04C5/167—Connection by means of clips or other resilient elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
    • 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
    • E04B2/8635—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties attached to the inner faces of the forms
    • E04B2/8641—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties attached to the inner faces of the forms using dovetail-type connections

Definitions

  • This invention relates to repairing or otherwise lining existing structures using lining structures fabricated from concrete and/or similar curable materials and formed in structure- lining apparatus.
  • this invention relates to rebar adapters for supporting rebar in structure-lining apparatus used to fabricate lining structure which in turn line existing structures.
  • Concrete is used to construct a variety of structures, such as building walls and floors, bridge supports, dams, columns, raised platforms and the like.
  • concrete structures are formed using embedded reinforcement bars (often referred to as rebar) or similar steel reinforcement material, which provides the resultant structure with increased strength.
  • repair structures or other lining structures
  • Lining structures may be fabricated using structure-lining apparatus in which the concrete or other curable material may be introduced and permitted to cure to provide the resultant lining structure which lines the existing structure. Examples of structure- lining apparatus and associated lining structures are disclosed in the patent application published as WO2010/078645.
  • a class of structure-lining apparatus referred to as stay-in-place structure lining apparatus, are at least partially embedded in the lining structure as the lining structure cures, so that the structure- lining apparatus remains in place after curing as part of the resultant lining structure.
  • Lining structures represent one type of structure.
  • Stay-in-place structure-lining apparatus may also be used to provide linings on other types of structures or portions thereof. Examples of structure-lining apparatus used to line other types of structures are disclosed in the patent application published as WO2008/119178.
  • Some structure-lining apparatus use standoffs to separate a lining surface from a portion of the existing structure to be lined. Some structure-lining apparatus use standoffs for other additional or alternative purposes, such as to connect components of the lining surface, to locate the lining surface, to anchor the lining surface to the resultant structure fabricated using the structure-lining apparatus and/or to locate rebar within the structure-lining apparatus during fabrication.
  • rebar members extend through apertures in standoffs and are also rigidly anchored to other structural components, such to an existing structure, to a structural formwork, to other rebar and/or the like. In these situations, when concrete is introduced into the structure-lining apparatus, the expansive force caused by the weight of the liquid concrete may result in force between the rebar and the standoffs which may damage the standoffs.
  • Figures 1 A and IB respectively show a partial plan view and a cross- sectional view (along line IB- IB) of a portion of an example prior art structure-lining apparatus 10 having standoffs 12 and a lining surface 13.
  • Lining surface 13 extends in transverse directions indicated by double-headed arrow 30 and in longitudinal directions indicated by double-headed arrow 32.
  • Standoffs 12 are connected to lining surface 13 at connections 22 and extend in an inward direction (indicated by arrow 36) from lining surface 13 toward existing structure 15.
  • Rebar member 14 extends in transverse direction 30 through apertures 12A in standoffs 12 and is rigidly anchored to existing structure 15 by rebar anchors 16.
  • rebar anchors 16 comprise J-bolts 16 A.
  • Rebar anchors 16 are rigidly anchored to existing structure 15 and comprise rebar receivers 16B (e.g. the hook portions of J- bolts 16A).
  • Rebar receivers 16B receive rebar members 14 and are shaped to prevent rebar members 14 from moving in an outward direction (indicated by arrow 34) away from existing structure 15.
  • Liquid concrete 17, or other curable material is introduced into space 17A between lining surface 13 and existing structure 15. Prior to curing, concrete 17 exerts force (shown by arrows 18) against lining surface 13 in outward direction 34.
  • this outwardly directed force causes lining surface 13 and standoffs 12 (which are coupled to lining surface 13 at connections 22) to be forced in the outward direction 34.
  • rebar member 14 experiences relatively little force in outward direction 34 (because of its relatively small surface area) and, as discussed above, rebar member 14 is prevented from outward movement by rebar anchors 16, which are rigidly anchored to existing structure 15.
  • rebar member 14 exerts considerable force against standoffs 12 at the inward edges of apertures 12A and standoff 12 may be damaged and/or plastically deformed by rebar member 14.
  • Rebar member 14 may even tear through standoffs 12 and become disconnected from structure-lining apparatus 10.
  • the resultant structure fabricated using structure- lining apparatus 10 may have non-uniform (e.g. uneven) surfaces and/or weakened structural integrity.
  • the structure-lining apparatus comprises: a plurality of rebar members, each rebar member extendable in a transverse direction; a plurality of rebar anchors rigidly anchorable to the existing structure, each rebar anchor comprising a rebar receiver shaped to receive an associated one of the rebar members and shaped to prevent movement of the associated one of the rebar members in an outward direction away from the existing structure when the rebar anchor is anchored to the existing structure and the associated one of the rebar members is received in the rebar receiver; a lining surface shaped to be extendable in the transverse direction and in a longitudinal direction; a plurality of standoffs coupleable to the lining surface and, when so coupled, shaped to extend in the longitudinal direction and also in an inward direction away from the lining surface and toward the existing structure, each of the standoffs aperture
  • Another aspect of the invention provides a method for fabricating a lining structure which lines an existing structure using concrete or other curable material, the method comprising: connecting a structure-lining apparatus to the existing structure, wherein connecting the structure-lining apparatus to the existing structure comprises: anchoring a plurality of rebar anchors to the existing structure, the anchored rebar anchors extending in an outward direction away from the existing structure to provide rebar receivers at locations spaced outwardly apart from the existing structure; connecting a plurality of rebar members to the rebar receivers of the rebar anchors, each connected rebar member extending in a transverse direction between the rebar receivers of two or more of the rebar anchors and each connected rebar member prevented from outward movement away from the existing structure by the rebar receivers of the two or more of the rebar anchors; providing a lining surface shaped to extend in the transverse direction and in a longitudinal direction at a location outward from the rebar receivers; coupling a
  • Another aspect of the invention provides a rebar adapter for coupling rebar to a stay-in- place structure-lining apparatus used to line an existing structure with a lining structure fabricated from concrete or other curable material, the structure-lining apparatus comprising a lining surface that extends in longitudinal and transverse directions and one or more
  • the rebar adapter comprising: a transversely extending and outwardly opening rebar support shaped to be coupleable to a transversely extending rebar member by moving the rebar support in the outward direction relative to the rebar member; and a longitudinally extending and inwardly opening standoff connector dimensioned to fit within an aperture of a corresponding one of the one or more standoffs and shaped to be coupleable to the corresponding one of the one or more standoffs by moving the standoff connector in the inward direction relative to the standoff; wherein the longitudinal, transverse and inward directions are at least approximately mutually orthogonal to one another.
  • Figure 1 A is a partial plan view of a prior art structure-lining apparatus.
  • Figure IB is a partial cross-sectional view (along line IB- IB) of the Figure 1 A structure- lining apparatus showing damage to the structure-lining apparatus.
  • Figure 2 is a perspective view of a portion of a structure-lining apparatus incorporating rebar adapters according to an example embodiment.
  • Figures 3A-3C are perspective, front elevation, and side elevation views respectively of a rebar adapter used in the Figure 2 structure- lining apparatus.
  • Figures 4A-4D are various views of steps involved in coupling a standoff and rebar adapter of the Figure 2 structure- lining apparatus.
  • Figures 5 A-5D are schematic views of various standoff heads according to example embodiments.
  • Figures 6A-6D are schematic views of various rebar adapter standoff connectors according to example embodiments.
  • Figures 7A, 7B and 7C are schematic views of various rebar adapters and standoffs according to other example embodiments.
  • Figure 8A is a perspective view of a rebar adapter coupled to a pair of rebar members according to another example embodiment.
  • Figures 8B-8D are a perspective view, a front elevation view and a side elevation view respectively of the Figure 8A rebar adapter in isolation.
  • Figure 9 is a partial plan view of a structure-lining apparatus according to another example embodiment.
  • Figure 10 is a partial plan view of a structure-lining apparatus according to another example embodiment.
  • Figure 11 is a partial plan view of a structure-lining apparatus according to another example embodiment.
  • aspects of the invention provide rebar adapters for use in structure-lining apparatus which are in turn used for fabricating structures (e.g. lining structures which line existing structures and/or structures generally) made of concrete and/or other curable materials.
  • aspects of the invention provide structure- lining apparatus incorporating such rebar adapters and methods for use of same.
  • rebar adapters are coupled to rebar members and to standoffs to provide interfaces therebetween. Without limiting the generality of the invention, this description presents particular embodiments, where rebar adapters are used with structure-lining apparatus used to fabricate lining structures that line existing structures.
  • FIG. 2 shows a partial shallow perspective view of a portion of a structure- lining apparatus 100 according to an example embodiment wherein rebar members 14 (only one of which is visible in Figure 2) are supported or otherwise accommodated by way of rebar adapters 200.
  • Figures 3A, 3B and 3C show various views of rebar adapter 200 in isolation.
  • Structure- lining apparatus 100 of Figure 2 comprises standoffs 120, lining surface 130, rebar members 14 and rebar adapters 200.
  • Lining surface 130 extends in transverse directions indicated by double- headed arrow 30 and in longitudinal directions indicated by double-headed arrow 32.
  • Standoffs 120 are connected to lining surface 130 at connections 121 and extend in an inward direction (indicated by arrow 36) from lining surface 130 toward existing structure 15.
  • Rebar member 14 extends in transverse direction 30 through apertures 124 in standoffs 120 and is rigidly anchored to existing structure 15 by rebar anchors 16.
  • transverse directions 30 and longitudinal directions 32 shown in Figure 2 may be orthogonal to one another and may be in a plane that is tangential to the outward surface of existing structure 15 at a particular location and/or to lining surface 130 at a particular location.
  • Inward direction 36 may be orthogonal to both transverse direction 30 and longitudinal direction 32 and may be oriented toward existing structure 15.
  • Outward direction 34 may also be orthogonal to both transverse direction 30 and longitudinal direction 32 and may be oriented away from existing structure 15.
  • rebar member 14 extends in transverse direction 30 through apertures 124 in standoffs 120 and is rigidly anchored to existing structure 15 by rebar anchors 16.
  • rebar anchors 16 comprise J-bolts 16A similar to those described above in connection with Figure 1.
  • Rebar anchors 16 are rigidly anchored to existing structure 15 and comprise rebar receivers 16B (e.g. the hook portions of J-bolts 16A).
  • Rebar receivers 16B receive rebar members 14 and are shaped to prevent rebar members 14 from moving in an outward direction (indicated by arrow 34) away from existing structure 15.
  • rebar anchors 16 may be implemented by any other suitable mechanism which is capable of being rigidly anchored to existing structure 15 and which comprises a rebar receiver capable of receiving, and preventing outward movement of, rebar member 14.
  • suitable mechanism capable of being rigidly anchored to existing structure 15 and which comprises a rebar receiver capable of receiving, and preventing outward movement of, rebar member 14.
  • Non-limiting examples include J-bolts, L-bolts (having L-shaped rebar receivers) and eye-bolts (having closed or nearly closed loop rebar receivers).
  • lining surface 130 comprises a plurality of longitudinally and transversely extending panels 132 disposed in edge-to-edge relationship with one another.
  • panels 132 are connected to one another at their transverse edges by way of standoffs 120 and connections 121.
  • connections 121 are formed between C-shaped female connector components 134 of edge- adjacent panels 132 and a pair of complementary T-shaped male connector components 122 of standoff 120.
  • standoffs 120 When standoffs 120 are used in this manner to connect a pair of edge-adjacent panels 132 at connections 121, standoffs 120 may be referred to as connectors 120. It is not necessary that standoffs 120 connect edge-adjacent panels.
  • standoffs 120 may each be connected to a single panel. In other embodiments, standoffs may be integrally formed with panels. In Figure 2, standoffs 120 are oriented to extend directly inwardly (direction 36) from lining surface 130 and directly longitudinally (direction 32). This is not necessary. In some embodiments, standoffs 120 may extend inwardly from lining surface 130 and
  • standoffs 120 may be oriented to have components which are oriented inwardly and longitudinally). Standoffs 120 are coupled through rebar adapters 200 to rebar member 14 (as explained in more detail below) and may: locate lining surface 130 relative to rebar member 14 and/or existing structure 15; space lining surface 130 apart from rebar member 14 and/or existing structure 15; and/or the like.
  • rebar member 14 extends transversely through apertures 124 of standoffs 120. Apertures 124 are formed in body 126 of standoffs 120 to allow for passage of both rebar member 14 and curable material (e.g. concrete) during fabrication of a lining structure.
  • Rebar adapters 200 are located in a vicinity of the location where rebar member 14 extends through apertures 124 and, each rebar adapter comprises a standoff connector 220 for coupling to standoffs 120 and a rebar support 210 for coupling to rebar member 14. Standoff connectors 220 of rebar adapters 200 may be coupled to heads (also referred to as anchors) 125 of standoffs 120.
  • Rebar adapters 200 may reduce the risk of damage to, plastic deformation of, or dislodgement of standoffs 120 by reducing stress concentrations and providing a larger surface area to distribute the force between rebar member 14 and standoffs 120 through rebar adapters 200.
  • standoffs 120 and panels 132 of lining surface 130 are fabricated from suitable plastic as monolithic units using an extrusion process.
  • rebar adapters 200 are fabricated from suitable plastic as monolithic units and may be fabricated using injection molding or any other suitable technique.
  • suitable plastics for these components include: poly- vinyl chloride (PVC), acrylonitrile butadiene styrene (ABS) and/or the like.
  • Standoffs 120 and panels 132 are not limited to plastic. In some embodiments, standoffs 120 and/or panels 132 could be fabricated from other suitable materials, such as suitable metals or the like.
  • the use of plastic components may increase the ease of production.
  • the use of plastic may in some cases contribute to the damage to, plastic deformation of, and/or misalignment of, the standoffs by the rebar members. This may be due, in part, to the difference in material strength between the plastic standoffs and the rebar members (typically fabricated from suitable steel alloys).
  • it may be difficult to produce standoffs having relatively large contact surfaces to receive rebar members in part due to the limitations of extrusion processes and/or due to a desire to reduce the amount of material required to produce standoffs.
  • Rebar adapters such as rebar adapter 200, may be produced separately and installed as necessary to support rebar members 14 and/or to connect rebar members 14 to part of the structure-lining apparatus 100 (e.g. to standoffs 120).
  • FIGS 3A-3C are perspective, front elevation, and side elevation views respectively of rebar adapter 200 used in the Figure 2 structure- lining apparatus 100.
  • Rebar adapter 200 comprises rebar support 210, standoff connector 220 and standoff receiver 230.
  • rebar support 210 is shaped to provide a transversely extending and outwardly opening rebar-support concavity 211 which is shaped to receive a portion of a transversely extending cylindrical rebar member 14.
  • rebar support 210 of the Figure 3 embodiment comprises a semi-cylindrical support surface 212 comprising a pair of transversely and outwardly extending arms 214A, 214B (together, arms 214) which are generally arc-shaped in cross-section.
  • the outwardmost ends 218A, 218B (together, ends 218) of arms 214 are spaced apart from one another, creating an outwardly oriented opening 213.
  • support surface 212 and its transversely and outwardly extending arms 214) may have other cross-sectional shapes to accommodate rebar members 214 having other cross-sectional shapes.
  • support surface 212 may be shaped to be complementary to rebar members 14 having elliptical cross-section, rectangular cross section, triangular cross-section, or the like.
  • Support surface 212 may provide a contact surface area with a greater dimension in transverse direction 30 than a corresponding standoff 120 to which it may be coupled (see Figure 2 for example).
  • transversely and outwardly extending arms 214 of rebar support 210 extend from a central portion 202 of rebar adapter 200.
  • arms 214 extend away from one another at a root 215 to reach a widest point 216 (in longitudinal direction 32) and extend towards one another at ends 218.
  • Such a configuration provides an opening having increasing longitudinal dimension from root 215 to widest point 216, and narrowing longitudinal dimension from widest point 216 to ends 218.
  • the longitudinal dimension of outwardly oriented opening 213 at ends 218 may be less than a longitudinal dimension (e.g.
  • arms 214 may be formed of a resiliently deformable material such as appropriate plastics described above. The resiliently deformable nature of arms 214 permits rebar member 14 to be coupled to rebar support 210 by pressing rebar member 14 inwardly into opening 213 at ends 218.
  • Arms 214 are then caused to deform apart from one another in longitudinal direction 32 as rebar member 14 is inserted inwardly through opening 213 and, as rebar member 14 begins to pass inwardly through opening 213 into rebar-support concavity 211, to resiliently restore (e.g. "snap" back) to a less deformed state around rebar member 14 until rebar member 14 is located in rebar-support concavity 211. Because of the deformation of one or both of arms 214, the coupling of rebar member 214 to rebar support 210 of rebar adapter 200 may be referred to as a "snap-together" connection.
  • arms 214 remain partially deformed when rebar member 14 is coupled to rebar support 210 such that arms 214 continue to assert restorative forces (i.e. forces that tend to restore arms 214 to their undeformed state) on rebar member 14 when rebar member 14 is coupled to rebar support 210.
  • rebar member 14 may be supported by support surface 212.
  • support surface 212 may comprise a variety of shapes that are complementary to the cross-sectional shape of rebar 214.
  • transversely and outwardly extending arms 214 may comprise a variety of generally concave cross-section shapes and extend longitudinally away from one another at root 215 to reach a widest point 216 and extend back toward one another at ends 218 to form a snap-together connection.
  • arms 214 may extend away from root 215 as flat planes to their respective widest points 216, then back toward one another as flat planes to their respective ends 218.
  • outwardly oriented opening 213 may have a longitudinal dimension that is greater than a longitudinal dimension (e.g. diameter) of rebar member 14.
  • rebar member 14 may still be coupled to and supported by rebar support 210, but may not necessarily be retained by arms 214.
  • rebar support 210 may not have an opening 213.
  • arms 214 may be shaped to form a transversely extending tube of suitable cross-sectional shape to accommodate the slidable transverse insertion of rebar member 14 therethrough.
  • Rebar adapter 200 also comprises standoff connector 220 which couples rebar adapter 200 to a portion of standoff 120 (see Figure 2).
  • standoff connector 220 is shaped to provide a longitudinally extending and inwardly opening standoff- connector concavity 221 which is shaped to receive a longitudinally extending portion of a corresponding one of standoffs 120.
  • standoff connector 220 of the Figure 3 embodiment comprises a pair of longitudinally and inwardly extending branches 222A, 222B (together, branches 222) that extend from central portion 202 of rebar adapter 200.
  • Branches 222 define standoff-connector concavity 221 and are transversely spaced apart from one another at their inward ends to define an inwardly oriented opening 224.
  • the transverse dimension of opening 224 may be less than a transverse dimension of standoff-connector concavity 221.
  • Branches 222 of the Figure 3 embodiment comprise longitudinally extending beveled surfaces 226A, 226B (together, beveled surfaces 226) in a vicinity of opening 224, which extend transversely toward one another as they extend into standoff-connector concavity 221.
  • Branches 222 are shaped to provide longitudinally extending hooks 227A, 227B (together, hooks 227) which are shaped to define outwardly opening hook concavities 229 A, 229B (together, hook concavities 229). As seen in Figures 3A and 3B, hook concavities also open toward standoff- connector concavity 221. As described further below, standoff connector 220 connects to standoff 120 by way of insertion of head 125 into standoff-connector concavity 221 through opening 224 such that hooks 227 of branches 222 constrain head 125 of standoff 120 within standoff-connector concavity 221.
  • Rebar adapter 200 also comprises standoff receiver 230 as shown best in Figures 3A and 3B.
  • Standoff receiver 230 of the Figure 3 example embodiment comprises a longitudinally extending standoff-receiver slot 232 that opens inwardly into standoff-connector concavity 221 for receiving a second portion (e.g. body 126) of standoff 120 (see Figures 4A-4D).
  • standoff- receiver slot 232 extends longitudinally through rebar adapter 200 and has a width that tapers slightly from its inwardly oriented opening 234 to its base 236.
  • the cross-sectional shape of standoff-receiver slot 232 is generally complementary to the corresponding cross-sectional shape of body 126 of standoff 120.
  • standoff-receiver slot 232 is shaped to be similarly rectangular. This is not necessary and body 126 and standoff- receiver slot 232 may have other cross-sectional shapes.
  • standoff-receiver slot 232 may have a V-shaped cross-section, where opening 234 has a wider transverse dimension that the remainder of standoff-receiver slot 232, as is the case in the illustrated embodiment.
  • Such a cross-sectional shape may facilitate easier insertion of body 126 of standoff 120 into standoff-receiver slot 232.
  • Figures 4A-4D show the process of coupling rebar adapter 200 to a standoff 120 according to an example embodiment.
  • rebar adapter 200 is inserted into an aperture 124 of standoff 120.
  • Standoff connector 220 of rebar adapter 200 may have a longitudinal dimension less than that of aperture 124 in standoff 124.
  • rebar adapter 200 may be dimensioned so as to be capable of passing transversely through aperture 124 of standoff 120.
  • standoff receiver 230 is aligned with body 126 of standoff 120 and standoff connector 220 is aligned with head 125 of standoff 120.
  • rebar adapter 200 To engage rebar adapter 200 with standoff 120, rebar adapter 200 is moved in inward direction 36 relative to standoff 120 (and/or standoff is move in outward direction 34 relative to rebar adapter 200). Branches 222 and in particular beveled surfaces 226 contact head 125.
  • head 125 comprises a pair of hooked legs 127A, 127B (together, legs 127).
  • beveled surfaces 226 and head 125 cause branches 222 to deform transversely apart from one another, expanding the transverse dimension of opening 224 until opening 224 is wide enough to accept head 125 (as shown in Figure 4C).
  • only branches 222 are deformed. This is not necessary, in some embodiments head 125 may be deformed; in some embodiments both head 125 and branches 222 may be deformed.
  • transverse opening 224 is wide enough to accept head 125, head 125 passes into standoff-connector concavity 221 between branches 222, as shown in Figure 4D. Hooks 227 of branches 222 engage legs 127 of head 125 or otherwise engage head 125. Also, body 126 of standoff 120 extends in outward direction 34 into standoff- receiver slot 232 of standoff receiver 230. Furthermore, once head 125 passes into standoff-connector concavity 221, branches 222 resiliently restore (e.g. "snap" back) to a less deformed state around head 125.
  • branches 222 remain partially deformed when standoff connector 220 is coupled to standoff 120, such that branches 222 continue to assert restorative forces (i.e. forces that tend to restore branches 222 to their undeformed state) on head 125 when standoff connector 220 is coupled to standoff 120.
  • rebar member 14 is free to move (or can be moved with a suitable amount of force) in transverse direction 30 even when coupled to rebar support 210 of rebar adapter 200. That is, rebar member 14 may slide transversely within rebar support 210. This may provide the advantage that rebar adapter 200, standoff 120, and/or lining system 100 may be moved and positioned as desired in the transverse direction 30. For example, this may allow rebar adapters 200 and/or standoffs 120 to be coupled to rebar member 14 prior to positioning standoffs 120 and/or prior to connecting standoffs 120 to lining surface 130.
  • rebar member 14 and rebar adapter 200 may be free to move in longitudinal direction 32 relative to standoff 120 even when standoff connector 220 of rebar adapter 200 is coupled to standoff 120. That is, rebar adapter 200 may be able to slide longitudinally along head 125 within aperture 124. In embodiments where standoffs 120 have large apertures, the range of motion in the longitudinal direction 32 page may be larger than in embodiments having apertures of a size such as those shown in Figure 4A.
  • the mobility of rebar adapter 200 relative to rebar member 14 and/or standoff 120 may also allow rebar adapter 200 to accommodate bends or kinks in rebar member 14.
  • rebar adapter 200 may provide enhanced flexibility during fabrication of a lining structure.
  • components may be positioned within greater tolerances thereby increasing build efficiency and reducing waste.
  • Rebar adapter 200 and standoff 120 are not limited to the shapes illustrated in the Figures 2-4 embodiment.
  • Figures 5A-5D (together, Figure 5) illustrate a number of example head shapes suitable for use with standoffs 120 of Figures 204B or standoffs of other embodiments.
  • Figure 5A shows a head 525A having a rectangular cross-section.
  • Figure 5B shows a head 525 B having a generally Y-shaped cross-section.
  • Figure 5C shows a head 525C having a generally oval shaped cross-section.
  • Figure 5D shows a head 525D having a generally W-shaped cross-section.
  • Many other head shapes are possible and would provide appropriate attachment points for rebar adapters, such as rebar adapter 200 which could be fabricated with branches having suitably complementary shapes.
  • Rebar adapters 200 of the embodiment illustrated in Figures 2-4 may be used with standoffs 120 having any of the head shapes 125, 525A, 525B, 525C, 525D of Figures 2-4, Figure 5A, Figure 5B, Figure 5C and/or Figure 5D. In some embodiments, however, rebar adapters 200 may be modified to provide standoff connectors which have shapes that are complementary to the shapes of heads of standoffs 120.
  • Figures 6A-6D (together, Figure 6) illustrate a number of example standoff-connector shapes 620 A, 620B, 620C and 620D
  • standoff connectors 620 suitable for use with standoffs 120 having various head- shapes (shown in broken lines in Figure 6).
  • Standoff connectors 620 shown in the Figure 6 example embodiments have characteristics similar to standoff connectors 120 described above. More particularly, standoff connectors 620 comprise inwardly opening standoff-connector concavities 621A, 621B, 621C, 621D (together standoff-connector concavities 612) defined by longitudinally and inwardly extending branches 622A, 622B, 622C, 622D (together branches 622), where branches 622 are shaped to provide hooks 627 A, 627B, 627C, 627D (together, hooks 627) having outwardly opening hook concavities 629A, 629B, 629C, 629D (together, hook concavities 629) and standoff receivers 630A, 630B, 630C, 630D (together standoff receivers 630) comprising longitudinally extending and inwardly opening standoff
  • Standoff-connector concavities 621, branches 622, hooks 627, hook concavities 629, standoff receivers 630 and standoff- receiver slots 632 may have features similar to standoff connector concavities 221, branches 222, hooks 227, hook concavities 229, standoff receivers 230 and standoff-receiver slots 232 described above.
  • branches 622 may be curved, straight, angled, bent or the like to accommodate the corresponding cross-sectional shape of heads 525.
  • hooks 627 may have a variety of shapes.
  • heads 125 of standoffs 120 are disclosed, for example, in co- owned Patent Cooperation Treaty publication No. WO2010/078645 and Patent Cooperation Treaty publication No. WO2008/119178 which are hereby incorporated herein by reference.
  • FIG. 7A shows another embodiment of a rebar adapter 700 and a portion of standoff 120 to which rebar adapter 700 may be coupled.
  • Rebar adapter 700 comprises standoff connector 720 and rebar support 710.
  • standoff connector 720 comprises a single longitudinally and inwardly extending branch 722 comprising a hook 727 having an outwardly opening hook concavity 729.
  • This configuration of standoff connector 720 may allow for rebar adapter 200 to be more easily coupled after rebar member 14 has been transversely extended through aperture 124 of standoff 120. This may be because rebar adapter 700 may be connected to head 125 of standoff 120 from a transverse side (i.e. in transverse direction 30) rather than by relative inward movement (i.e. in inward direction 36) relative to standoff 120.
  • Rebar support 710 of rebar adapter 700 may be similar in many ways to rebar support 210 of rebar adapter 200.
  • rebar support 710 may be transversely offset from the longitudinal extension of standoff 120.
  • Figure 7B shows rebar support 710 offset to one transverse side of standoff 120
  • Figure 7C shows rebar support 710 offset to the other transverse side of standoff 120.
  • rebar adapter 700 may be coupled to rebar member 14 at a location spaced apart from standoff 120 and then rebar adapter 700 may be moved transversely toward standoff 120, where rebar adapter may then be coupled to head 125 of standoff 120.
  • rebar support 710 may pass at least partially through an aperture 124 (not shown in Figure 7) of standoff 120 once rebar adapter 700 is coupled to standoff 120.
  • FIGS 8A-8D show another embodiment of a rebar adapter 800.
  • Rebar adapter 800 comprises a rebar support 810, standoff connector 820 and standoff receiver 830 which may be similar in many respects of rebar support 210, standoff connector 820 and standoff receiver 830 of rebar adapter 200 described herein.
  • Rebar adapter 800 differs from rebar adapter 200 in that rebar adapter 800 comprises a second rebar support 840.
  • Standoff connector 820 of the Figure 8 embodiment is substantially similar to standoff connector 220 of rebar adapter 200 and, like standoff connector 220, standoff connector 820 may comprise any of the alternate standoff connector shapes, such as those shown in Figures 6A-6D.
  • Standoff receiver 830 of the Figure 8 embodiment is substantially similar to standoff receiver 230 of rebar adapter 200.
  • Second rebar support 840 is configured to support a second rebar member 14A oriented in a different direction to rebar member 14.
  • second rebar support 840 is configured to support a second, longitudinally oriented rebar member 14A.
  • FIGS 8B, 8C, 8D show various views of rebar adapter 800 in isolation.
  • Second rebar support 840 comprises a cradle 842 for supporting second, longitudinally extending rebar member 14A (Figure 8A).
  • Cradle 842 of the Figure 8 embodiment extends in longitudinal direction 32, opens in inward direction 36 and has a semi-circular cross-section shaped to receive a cylindrical portion of second rebar member 14A ( Figure 8C).
  • cradle 842 may have other cross-sectional shapes that are complementary to the cross-sectional shape of second rebar member 14A.
  • Second rebar support 840 also comprises an inwardly opening rebar- support concavity 843.
  • Rebar-support concavity 843 may have a transvers dimension greater than a transverse dimension of second rebar member 14A or may have a transvers dimension less than a transverse dimension of second rebar member 14A. In embodiments where the transverse dimension of rebar-support concavity 843 is less than the transverse dimension of second rebar member 14A, second rebar support 840 may comprise a snap-together connection similar in many ways to rebar support 210 described above.
  • Distal leg 847 of second rebar support 840 of the Figure 8 embodiment also comprises a loop 844 for receiving transversely extending primary rebar member 14.
  • Loop 844 is shown in the Figure 8 embodiment as being a closed loop (i.e. with a fully closed cross-sectional shape). This is not necessary; loop 844 may have an inwardly opening shape in some embodiments and in some embodiments may comprise arms which deform to accept transversely extending primary rebar member 14. Loop 844 may comprise a snap-together connection.
  • rebar support 810 also comprises a closed loop 812 as seen best in Figure 8D.
  • transversely extending primary rebar member 14 may be extended through closed loop 812 after rebar adapter 800 has been connected to a standoff 120 via standoff connector 820. In other embodiments, transversely extending primary rebar member 14 may be extended through closed loop 812, then transversely extending primary rebar member 14 may be positioned with respect to the standoff(s) (e.g. standoffs 120) and rebar adapter(s) 800 may be connected to standoff(s) 120.
  • standoff(s) e.g. standoffs 120
  • cradle 842 is located further outwardly from standoff connector 820 than rebar support 810 such that second longitudinally extending rebar memberl4A would be located on an outward side of transversely extending primary rebar member 14. This is not necessary.
  • cradle 842 and/or second rebar support 840 may be located on the inward side of rebar support 810. In such embodiments, second longitudinally extending rebar member 14A would be located inwardly of transversely extending primary rebar member 14.
  • FIG. 9 shows an embodiment of a structure-lining apparatus 900 according to an example embodiment of the invention.
  • Structure- lining apparatus 900 is similar in many respects to structure-lining apparatus 100 with similar components being referenced with a leading numeral "9" rather than a leading numeral "1".
  • Structure-lining apparatus 900 differs from structure-lining apparatus 100 primarily in that lining surface 930 comprises a plurality of panels 932 connected directly to one another via edge-connections 921 (rather than being connected to one another via standoffs 120 (see connections 121 of structure- lining apparatus 100).
  • Edge- connections 921 are made between edge-connector components 933A, 933B on transverse edges of edge-adjacent panels 932.
  • Edge-connections 921, edge connector components 933A, 933B and panels 932 may correspond to those described in, for example, Patent Cooperation Treaty publication No. WO2009/059410, which is incorporated herein by reference.
  • each standoff 920 is connected to a single panel 932 by way of female C-shaped connectors 934 and male T-shaped connectors 922.
  • C-shaped connectors 934 may be adjacent to edge-connections 921 or may be located elsewhere on panels 932.
  • Other forms of connectors may be used as is known in the art.
  • FIG. 10 shows an embodiment of a structure-lining apparatus 1000 according to an example embodiment of the invention.
  • Structure-lining apparatus 1000 is similar in many respects to structure-lining apparatus 100 with similar components being referenced with a leading numeral "10" rather than a leading numeral "1".
  • Structure-lining apparatus 1000 differs from structure-lining apparatus 100 primarily in that panels 1032 are shaped to provide a double- layered lining surface 1030 which comprises an outward lining surface 1030A and an inward lining surface 1030B. This double-layered lining surface 1030 may reduce bowing of panels 1032 under the weight of liquid concrete. Panels having this double-layered configuration are described in PCT patent application published under No. WO/2013/075250 which is hereby incorporated herein by reference.
  • Structure-lining apparatus 1000 also differs from structure- lining apparatus 100 in that rebar anchors 1016 have shapes that are different from rebar anchors 16. More particularly, rebar anchors 1016 comprise rebar receiver portions that are L-shaped (rather than the J-shaped rebar receiver portions of rebar anchors 16). The shape of L-shaped rebar anchors 1016 still provides the same functionality as J-shaped rebar anchors 16 in the sense that rebar anchors 1016 may be rigidly anchored to existing structure 15 and comprise rebar receivers shaped to receive a rebar member 14 and to prevent movement of the rebar member 14 in an outward direction away from the existing structure when rebar anchor 1016 is anchored to existing structure 15. In other respects (e.g. standoffs 120 and rebar adapters 200), structure- lining apparatus 1000 may be similar to structure-lining apparatus 100 described above.
  • Rebar member 14 may be located and installed without rebar anchors 16 and/or without existing structure 15.
  • rebar member 14 may be supported by components of a formwork at either end of rebar member 14 such that rebar anchors 16 (or other anchoring components) is unnecessary.
  • rebar anchors 16 may be rigidly anchored to other structural components (e.g. formwork components and/or the like) - i.e. such that rigid anchoring of rebar anchors to existing structure 15 is unnecessary.
  • Existing structures 15 may be fabricated from concrete. This is not necessary, however, and existing structures may generally be fabricated from any suitable structural material, such as: wood, metal, stone, brick, combinations of these materials and/or the like.
  • the lining surface may comprise a push-on lining surface that is installed onto the standoffs by pushing the panels in directions towards existing structure 15.
  • Figure 11 which shows an example embodiment of a stnicture-lining apparatus 1100 comprising push-on panels 1132 of this type.
  • Structure-lining apparatus 1100 is similar in many respects to structure-lining apparatus 100 with similar components being referenced with a leading numeral "11 " rather than a leading numeral "1".
  • Structure-lining apparatus 1100 differs from structure-lining apparatus 100 primarily in that panels 1132 have connector components at their transverse edge (and standoff 1120 have complementary connector components at their outward edges) which permit connections 1121 between panels 1132 and standoffs 1120 to be made by inward movement of panels 1132 relative to standoffs 1120.
  • structure-lining apparatus 1100 also includes caps 1125 which complete connectors 1121 between panels 1132 and standoffs 1120, although, in some embodiments, caps 1125 are not necessary.
  • Structure-lining apparatus 1100 also differs from structure-lining apparatus 100 in that standoffs 1120 also connect to panels 1132 by connections 1123 at locations away from the transverse edges of panels 1132, although such connections 1123 are not necessary or may differ in number.
  • Structure-lining apparatus 1100 also differs from structure-lining apparatus 100 in that rebar adapters 1116 are similar to rebar adapters 1016 described above for structure-lining apparatus 1000. In other respects (e.g. heads 125 of standoffs 1120 and rebar adapters 200), ), structure-lining apparatus 1100 may be similar to structure-lining apparatus 100 described above.
  • Rebar adapters 200 and hooks 227 may pierce heads 125 or be inserted into gaps formed therein.
  • Rebar adapters 200 may connect between two heads 125 that are spaced apart either in
  • branches 222 may extend between heads 125.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne un appareil de revêtement de structure utilisé pour fabriquer une structure de revêtement. L'appareil comprend : une pluralité d'éléments barres d'armature qui s'étendent transversalement ; une pluralité d'ancrages de barre d'armature qui peuvent être ancrés de façon rigide à une structure existante, chaque ancrage de barre d'armature comprenant un récepteur de barre d'armature formé pour recevoir un élément associé des éléments barres d'armature et formé pour empêcher le mouvement de l'élément associé des éléments barres d'armature dans une direction extérieure qui s'éloigne de la structure existante ; une surface de revêtement qui s'étend transversalement et longitudinalement ; une pluralité de douilles-entretoises autosertissables qui peuvent être accouplées avec la surface de revêtement et qui s'étendent longitudinalement et vers l'intérieur pour s'éloigner de la surface de revêtement et se rapprocher de la structure existante, chacune des douilles-entretoises autosertissables étant ouverte pour permettre l'extension transversale d'éléments barres d'armature à travers chacune desdites douilles-entretoises autosertissables ; et un ou plusieurs adaptateurs de barre d'armature pour accoupler les éléments barres d'armature aux douilles-entretoises autosertissables, chaque adaptateur de barre d'armature comprenant : un raccord de douille-entretoise autosertissable qui peut être accouplé avec une douille-entretoise autosertissable correspondante des douilles-entretoises autosertissables ; et un support de barre d'armature qui peut être accouplé avec un élément barre d'armature correspondant des éléments barres d'armature à un emplacement auquel l'élément barre d'armature correspondant des éléments barres d'armature s'étend à travers une ouverture de la douille-entretoise autosertissable correspondante des douilles-entretoises autosertissables.
PCT/CA2013/050423 2012-05-31 2013-05-31 Adaptateurs de barre d'armature pour appareil de revêtement de structure et appareil de revêtement de structure incorporant des adaptateurs de barre d'armature WO2013177715A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261654024P 2012-05-31 2012-05-31
US61/654,024 2012-05-31

Publications (1)

Publication Number Publication Date
WO2013177715A1 true WO2013177715A1 (fr) 2013-12-05

Family

ID=49672255

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2013/050423 WO2013177715A1 (fr) 2012-05-31 2013-05-31 Adaptateurs de barre d'armature pour appareil de revêtement de structure et appareil de revêtement de structure incorporant des adaptateurs de barre d'armature

Country Status (1)

Country Link
WO (1) WO2013177715A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9206614B2 (en) 2011-11-24 2015-12-08 Cfs Concrete Forming Systems Inc. Stay-in-place formwork with engaging and abutting connections
US9315987B2 (en) 2012-01-05 2016-04-19 Cfs Concrete Forming Systems Inc. Systems for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures with locatable stand-off components
US9359780B2 (en) 2009-01-07 2016-06-07 Cfs Concrete Forming Systems Inc. Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete
US9441365B2 (en) 2011-11-24 2016-09-13 Cfs Concrete Forming Systems Inc. Stay-in-place formwork with anti-deformation panels
US9453345B2 (en) 2012-01-05 2016-09-27 Cfs Concrete Forming Systems Inc. Panel-to-panel connections for stay-in-place liners used to repair structures
CN106996298A (zh) * 2017-05-19 2017-08-01 龚岗 隧道二衬钢筋定位、铺设及顶出装置
US9783991B2 (en) 2013-12-06 2017-10-10 Cfs Concrete Forming Systems Inc. Structure cladding trim components and methods for fabrication and use of same
US10450763B2 (en) 2014-04-04 2019-10-22 Cfs Concrete Forming Systems Inc. Liquid and gas-impermeable connections for panels of stay-in-place form-work systems
US10731333B2 (en) 2015-12-31 2020-08-04 Cfs Concrete Forming Systems Inc. Structure-lining apparatus with adjustable width and tool for same
US11180915B2 (en) 2017-04-03 2021-11-23 Cfs Concrete Forming Systems Inc. Longspan stay-in-place liners
CN113737985A (zh) * 2021-07-13 2021-12-03 杨军 框架剪力墙建筑及其施工方法
US11512483B2 (en) 2017-12-22 2022-11-29 Cfs Concrete Forming Systems Inc. Snap-together standoffs for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures
US11674322B2 (en) 2019-02-08 2023-06-13 Cfs Concrete Forming Systems Inc. Retainers for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures
CN118321806A (zh) * 2024-06-14 2024-07-12 安徽省桥建金属股份公司 一种间距可调的布料式钢筋网片生产设备
US12037801B2 (en) 2009-01-07 2024-07-16 Cfs Concrete Forming Systems Inc. Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141661A (en) * 1983-06-20 1985-01-03 Charcon Tunnels Ltd Reinforcement supporting devices for use in the casting of reinforced concrete articles
CN2529936Y (zh) * 2002-04-03 2003-01-08 吴仁友 钢筋保护层塑料垫块
WO2010078645A1 (fr) * 2009-01-07 2010-07-15 Cfs Concrete Forming Systems Inc. Procédés et appareil pour restaurer, réparer, renforcer et/ou protéger des structures utilisant du béton

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141661A (en) * 1983-06-20 1985-01-03 Charcon Tunnels Ltd Reinforcement supporting devices for use in the casting of reinforced concrete articles
CN2529936Y (zh) * 2002-04-03 2003-01-08 吴仁友 钢筋保护层塑料垫块
WO2010078645A1 (fr) * 2009-01-07 2010-07-15 Cfs Concrete Forming Systems Inc. Procédés et appareil pour restaurer, réparer, renforcer et/ou protéger des structures utilisant du béton

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12037801B2 (en) 2009-01-07 2024-07-16 Cfs Concrete Forming Systems Inc. Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete
US9359780B2 (en) 2009-01-07 2016-06-07 Cfs Concrete Forming Systems Inc. Methods and apparatus for restoring, repairing, reinforcing and/or protecting structures using concrete
US9441365B2 (en) 2011-11-24 2016-09-13 Cfs Concrete Forming Systems Inc. Stay-in-place formwork with anti-deformation panels
US9206614B2 (en) 2011-11-24 2015-12-08 Cfs Concrete Forming Systems Inc. Stay-in-place formwork with engaging and abutting connections
US9315987B2 (en) 2012-01-05 2016-04-19 Cfs Concrete Forming Systems Inc. Systems for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures with locatable stand-off components
US9453345B2 (en) 2012-01-05 2016-09-27 Cfs Concrete Forming Systems Inc. Panel-to-panel connections for stay-in-place liners used to repair structures
US9783991B2 (en) 2013-12-06 2017-10-10 Cfs Concrete Forming Systems Inc. Structure cladding trim components and methods for fabrication and use of same
US10450763B2 (en) 2014-04-04 2019-10-22 Cfs Concrete Forming Systems Inc. Liquid and gas-impermeable connections for panels of stay-in-place form-work systems
US10731333B2 (en) 2015-12-31 2020-08-04 Cfs Concrete Forming Systems Inc. Structure-lining apparatus with adjustable width and tool for same
US11053676B2 (en) 2015-12-31 2021-07-06 Cfs Concrete Forming Systems Inc. Structure-lining apparatus with adjustable width and tool for same
US11499308B2 (en) 2015-12-31 2022-11-15 Cfs Concrete Forming Systems Inc. Structure-lining apparatus with adjustable width and tool for same
US11180915B2 (en) 2017-04-03 2021-11-23 Cfs Concrete Forming Systems Inc. Longspan stay-in-place liners
US12158000B2 (en) 2017-04-03 2024-12-03 Cfs Concrete Forming Systems Inc. Longspan stay-in-place liners
US11821204B2 (en) 2017-04-03 2023-11-21 Cfs Concrete Forming Systems Inc. Longspan stay-in-place liners
CN106996298A (zh) * 2017-05-19 2017-08-01 龚岗 隧道二衬钢筋定位、铺设及顶出装置
US11761220B2 (en) 2017-12-22 2023-09-19 Cfs Concrete Forming Systems Inc. Snap-together standoffs for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures
US11512483B2 (en) 2017-12-22 2022-11-29 Cfs Concrete Forming Systems Inc. Snap-together standoffs for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures
US11674322B2 (en) 2019-02-08 2023-06-13 Cfs Concrete Forming Systems Inc. Retainers for restoring, repairing, reinforcing, protecting, insulating and/or cladding structures
CN113737985A (zh) * 2021-07-13 2021-12-03 杨军 框架剪力墙建筑及其施工方法
CN118321806A (zh) * 2024-06-14 2024-07-12 安徽省桥建金属股份公司 一种间距可调的布料式钢筋网片生产设备

Similar Documents

Publication Publication Date Title
WO2013177715A1 (fr) Adaptateurs de barre d'armature pour appareil de revêtement de structure et appareil de revêtement de structure incorporant des adaptateurs de barre d'armature
CA2988025C (fr) Systemes pour restaurer, reparer, renforcer, proteger, isoler et gainer des structures avec des composants en porte-a-faux localisables
US9279246B2 (en) Twist on wire tie wall connection system and method
US7823350B2 (en) Structual stud
US10006477B2 (en) Sheet and rod attachment apparatus and system
EP2220303A1 (fr) Composants de connecteur à activation par pivotement pour des systèmes de coffrage et leurs procédés d'utilisation
US20070209297A1 (en) Slab formwork system and method for preparation of slab formwork system of this type
WO2014159512A1 (fr) Dispositif de serrage à coin universel
EP2669448A2 (fr) Améliorations apportées à des composants et des structures de bâtiment
EP3298215B1 (fr) Unité de fixation souple pour une poutre
CN104797829B (zh) 膨胀锚定件
JP4909511B2 (ja) 先行手摺
KR20090117224A (ko) 슬래브 지지장치
EP3034715A1 (fr) Colonne en béton renforcé et son procédé de fabrication
EP3239576B1 (fr) Dispositif de retenue pour un câble ou un tuyau
US9068368B2 (en) Alignment device
JP5912862B2 (ja) 連結拘束具
CN221524205U (zh) 一种承插式附墙拉结装置
JP3891409B2 (ja) 鉄筋連結金具
US20180171643A1 (en) Fitting for laying decking boards
JP2002089047A (ja) 足場用防護装置、足場用パイプ装置及び足場装置
KR20030072278A (ko) 구조물 공사용 비계연결구의 로커
JP4707620B2 (ja) 組立鉄筋仮立て冶具及び組立鉄筋の連結方法
KR20220129824A (ko) 철거용 외형 구조물의 발판 측면 사이의 갭 제거 장치
KR101846240B1 (ko) 유로폼 설치장치와 이를 이용한 유로폼 설치공법

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: 13797025

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: 13797025

Country of ref document: EP

Kind code of ref document: A1