US20200056369A1 - Improved Connector for Use in Forming Joints - Google Patents

Improved Connector for Use in Forming Joints Download PDF

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Publication number
US20200056369A1
US20200056369A1 US16/343,008 US201716343008A US2020056369A1 US 20200056369 A1 US20200056369 A1 US 20200056369A1 US 201716343008 A US201716343008 A US 201716343008A US 2020056369 A1 US2020056369 A1 US 2020056369A1
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US
United States
Prior art keywords
housing
improved connector
dowel
dowel bar
forming joints
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.)
Abandoned
Application number
US16/343,008
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English (en)
Inventor
Lance Rogers
Original Assignee
Srg Ip Pty Ltd
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
Priority claimed from AU2016904262A external-priority patent/AU2016904262A0/en
Application filed by Srg Ip Pty Ltd filed Critical Srg Ip Pty Ltd
Publication of US20200056369A1 publication Critical patent/US20200056369A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/48—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/48—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
    • E04B1/483—Shear dowels to be embedded in concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices

Definitions

  • the invention relates to an improved connector for use in forming joints.
  • the invention is particularly suited for use in connecting portions of a post-tensioned concrete structure, such as floor slabs, in a manner that allows the portions to move relative to each other as occurs during settling of the portions.
  • Post-tensioning is a technique used in the construction of buildings, particularly those where the floors of the building are intended to have long spans uninterrupted by vertical pillars.
  • PT involves reinforcing (strengthening) concrete or other materials with high strength steel strands or bars. These strands and bars are generally referred to as tendons.
  • each section or slab contains suitable tendons such as PT wire cables or PT strand cables.
  • the sections or slabs may move relative to each other.
  • the joint connecting the sections or slabs must be capable of accommodating this relative movement.
  • the joint operates to allow temporary release of restraining effects of the various sections relative to one another and thus ensure that the maximum amount of PT pre-compression force is transferred into the floor plates. If insufficient PT pre-compression force is transferred into the floor plates there exists the possibility of cracking within the sections or slabs—thereby reducing the longevity and the integrity of the resulting floor plate.
  • the second problem presents a situation where the temporary movement joint is not adequately strengthened or that sealant may be lost from the joint.
  • a workman is then required to caulk the temporary movement joint at a later date and thus ensure that the temporary movement joint is properly sealed and thereby locked in place.
  • This requirement for remedial action is time-consuming and expensive in addition to delaying completion of the building.
  • This invention used a first member (typically a female member) installed in the first surface.
  • the second member being a male member adapted to be mated with the female member) is then installed and the second surface formed around it.
  • This use of members installed in both surfaces creates the potential for the unit to fail under excessive forces in any of the three axis of movements that the invention allows for. This includes vertical deflection or stepping.
  • an improved connector for use in forming joints comprising:
  • sealing screen adapted for receipt in the enlarged seal housing, the sealing
  • the aperture is adapted to sealingly engage a dowel bar and where, movement of the dowel bar laterally, vertically or telescopically is accommodated for by the elastic membrane in a manner that ensures that the dowel bar remains sealing engaged by the aperture.
  • the sealing screen is substantially flat.
  • the enlarged seal housing may be connected to a chamber by way of a first opening, the first opening being at a position above the housing when in use, the chamber incorporating a first spigot at a position lower than the first opening.
  • the enlarged seal housing have at least one abutment, such that when the sealing screen is received within the enlarged seal housing it makes contact with the at least one abutment and thereby ensures that grout entering the chamber by way of the first opening is able to flow through to the remainder of the housing.
  • the improved connector may have a second spigot provided in the housing remote from the first spigot.
  • the housing may also have at least one pair of stops provided internally therein, the stops operable to guide the positioning of the dowel bar.
  • the housing may have at least one projection extending therefrom into the aperture, the at least one projection thereby operable to limit lateral movement of the dowel bar.
  • the housing may also have a retainer provided in an end spaced from the enlarged seal housing, the retainer operable to receive one or more of the following: a bar chair; a prop.
  • the housing may have an external surface having a plurality of surface irregularities or discontinuities provided therein.
  • This plurality of irregularities or discontinuities take the form of a plurality of ribs. Such ribs assist in securing the improved connector within its intended surface.
  • the housing may be adapted such that, in use, the upper surface of the housing has a reservoir defined therein. This reservoir allows the weight of the intended surface material to accumulate and further solidify its position within the surface.
  • the sealing screen may have at least one alignment ledge for facilitating orderly lateral movement of the dowel bar.
  • the aperture of the sealing screen may be adapted to receive a dowel cap, and the dowel cap incorporates a sealing ring for sealingly engaging the dowel bar.
  • the improved connector may further comprise a dowel sleeve, the dowel sleeve adapted to be received within the housing at a position proximate the first end, the dowel sleeve operable to receive a portion of the dowel bar and thereby restrict vertical movement of the dowel bar.
  • the housing may incorporate at least one cut-out provided therein proximate the first end, the dowel sleeve further comprising at least one retention strip of equal dimension to the at least one cut-out.
  • the housing has at least one cut-out provided therein proximate the first end, the dowel sleeve further comprising at least one retention strip of equal dimension to the at least one cut-out, the dowel sleeve adapted to be received within the housing when the at least one retention strip is received within the at least one cut-out.
  • a dowel bar for use with an improved connector as described in the first aspect of the invention, the dowel bar comprising at least one ribbed section and one smooth section, the smooth section being adapted to be received within the dowel sleeve when properly positioned within the improved connector.
  • the smooth section of the dowel bar having a diameter substantially equal to the smaller of the height or width dimension of the dowel sleeve.
  • the dowel bar has a length such that part of the dowel bar may be received along the full interior length of the housing and still properly place the smooth section within the dowel sleeve.
  • An end of the dowel bar intended not to be received within the housing preferably has at least one threaded portion, the threaded portion adapted to allow for retention of an anchor nut.
  • This method can be used where the first surface is a wall and the second surface is a floor slab.
  • FIG. 1 is an isometric view of a housing of an improved connector with a dowel sleeve installed therein and a sealing screen positioned in exploded view.
  • FIG. 2 is a front isometric view of the improved connector as shown in FIG. 1 , but with the sealing screen installed as intended for use.
  • FIG. 3 is an exploded side isometric view of the housing as shown in FIG. 1 with the dowel sleeve installed in the lower portion.
  • FIG. 4 is a rear isometric view of the housing as shown in FIG. 1 .
  • FIG. 5 is an exploded isometric view of the sealing screen as shown in FIG. 1 .
  • FIGS. 6 a and 6 b are a side plan view and front plan view of a dowel cap.
  • FIG. 7 is an isometric view of a dowel bar as used with the improved connector as shown in FIG. 1 .
  • FIG. 8 is a flowchart of a typical method of installing the improved connected as shown in FIGS. 1 to 7 .
  • the improved connector 10 for use in forming joints.
  • the improved connector 10 comprises:
  • Housing 12 is hollow having an exposed end 20 , a rear end 22 , an upper side 24 , a lower side 26 and sides 28 .
  • the length (L) of the housing 12 corresponds with the length of a portion of the dowel bar 18 . This will be described in more detail below.
  • the first spigot 32 is arranged to be substantially parallel to central axis X-X.
  • the retainer 34 Proximate the same position about the rear end 22 as the structure 30 , but extending from the lower side 26 is a retainer 34 .
  • the retainer 34 has a plurality of slots 36 provided therein.
  • the slots 36 are adapted to facilitate retention of the rear end 22 of the housing 12 on a bar chair (not shown) or reinforcement bar (also not shown).
  • Each side 28 is provided with surface irregularities or discontinuities in the form of ribs 38 .
  • the ribs 38 assist in securely retaining the submerged housing 12 in the first section (not shown) of slab of flooring when in its uncured state.
  • Each ramp 40 has a sloping side 42 and a flush side 44 .
  • the flush side 44 is arranged so as to present a continuous surface between the flush side 44 and the side 28 to which it is mounted.
  • Each flush side 44 also has a height (H) equal to that of the structure 30 .
  • the sloping sides 42 are arranged to face each other. In this manner, the sloping sides 42 operate to define a reservoir 46 .
  • a first cut-out 50 At an end 48 of the reservoir 46 corresponding with the exposed end 20 of the housing is a first cut-out 50 .
  • a second cut-out 52 is provided in the lower side 26 . The role of the cut-outs 50 , 52 will be described in more detail below.
  • a plurality of stops 54 are provided internally to the housing 12 . Each stop 54 is positioned so as angled towards central axis X-X.
  • the housing 12 is attached to a seal housing 56 at its exposed end 20 .
  • the seal housing 56 has a housing side 58 , a seal side 60 and side walls 62 . Extending from the housing side 58 at a position proximate a side 28 is a second spigot 64 .
  • the second spigot 64 is also arranged to be substantially parallel to central axis X-X.
  • the seal housing 56 has two recessed areas 66 provided in the housing side 58 . Each recessed area 66 is positioned adjacent a cut-out 50 , 52 . The depth of the cut-outs 50 , 52 is roughly equivalent with the length (L 1 ) of the side walls 62 .
  • the recessed area 66 adjacent first cut-out 50 extends between the sloping sides 42 along their full length.
  • the recessed area 66 adjacent second cut-out 52 is of identical size and shape to the recessed area 66 adjacent first cut-out 50 .
  • the recessed areas 66 are arranged such that longer ends 68 are opposite each other about opening 70 .
  • Each side wall 62 meets its adjacent side walls 62 at corners 74 .
  • Through apertures 71 are provided in each corner 74 .
  • Each through aperture 71 extends from the housing side 58 to the seal side 60 .
  • Each through aperture 71 is of greater diameter at the housing side 58 relative to its diameter at the seal side 60 .
  • An abutment 72 extends about the internal periphery of the side walls 62 and corners 74 on the seal side 60 .
  • the combined height of the abutment 72 and sealing screen 16 is substantially equal to the length (L 1 ) of the side walls 62 .
  • the dowel sleeve 14 comprises an open-ended rectangle.
  • the dowel sleeve 14 has a housing end 76 , an opening end 78 , and a pair of retention strips 80 .
  • the retention strips 80 are attached to the wider sides of the dowel sleeve 14 such that they protrude at the opening end 78 .
  • the dimensions of the retention strips 80 are equal to the dimensions of the cut-outs 50 , 52 as extending into their respective recessed areas 66 .
  • the dowel sleeve 14 is made of a rigid metal.
  • the sealing screen 16 is of size and shape so as to fit neatly within the side walls 62 on the seal side 60 and accounting for the corners 74 . When so fitted, the abutment 72 ensures that a gap is created between the seal side 60 and the sealing screen 16 .
  • the sealing screen 16 comprises an exterior frame 82 , an elastic membrane 84 , a positioner 86 and a dowel cap 100 . When assembled without the dowel cap 100 , the sealing screen 16 is substantially flat.
  • the exterior frame 82 is formed from two mating parts that are welded together when formally assembled. In this manner, the two mating parts of the exterior frame 82 operate to sandwich the elastic membrane 84 about its external periphery. This will be referred to hereafter as the outer seal of the elastic membrane 84 .
  • the exterior frame 82 also has horizontal alignment ledges 88 are provided on an opening side 90 .
  • the horizontal alignment ledges 88 oppose each other.
  • the positioner 86 similarly comprises two mating parts that are also welded together when formally assembled.
  • the two mating parts of the positioner 86 operate to sandwich the elastic membrane 84 about its internal periphery. This will be referred to hereafter as the inner seal of the elastic membrane 84 .
  • the positioner 86 also has opposing alignment rails 92 .
  • each alignment rail 92 is received within its corresponding horizontal alignment ledge 88 .
  • An aperture 94 is provided centrally within the positioner 86 .
  • the aperture 94 has a plurality of retaining flanges 96 extending about its perimeter. Each retaining flange 96 is tapered relative to the aperture's 94 internal wall 98 .
  • the dowel cap 100 has a securing portion 102 , a sealing flange 104 and a sealing ring 106 .
  • the securing portion 102 is of same size and diameter as aperture 94 .
  • the securing portion 102 also has a plurality of sealing threads 108 extending about its perimeter. The sealing threads 108 are similarly tapered so as to allow them to mate with the retaining flanges 96 when the dowel cap 100 is properly received within the positioner 86 .
  • the sealing flange 104 extends from the circumference wall of the dowel cap 100 . In this manner, when the sealing threads 108 mate with the retaining flanges 96 , the sealing flange 104 operates to seal off this area of connection.
  • the aperture 110 Positioned centrally within the dowel cap 100 is an aperture 110 .
  • the aperture 110 has a slot (not shown) provided about its perimeter into which the sealing ring 106 is retained by compressive forces.
  • the sealing ring 106 is of size to receive part of the dowel bar 18 .
  • the sealing ring 106 is made from an elastomeric material.
  • the dowel bar 18 has a first portion 112 , a smooth portion 114 and a second portion 116 .
  • the first portion 112 and the second portion 116 have a plurality of angled ribs 118 provided thereon at equal distances along its length (L 2 ).
  • Exposed end 120 of first portion 112 is threaded so as to allow it to mate with an anchor nut 122 .
  • formwork When it is required to join two concrete slabs across a common join, formwork is prepared in accordance with the location and size and shape of the floor to be formed.
  • This formwork includes mostly horizontal boards for forming the floor. Substantially vertical formwork strips are securely connected to the horizontal boards where a joining edge of the floor is to be formed.
  • the improved connector 12 is prepared for installation.
  • Preparing the housing 12 for installation is performed by inserting the dowel sleeve 14 into opening 60 .
  • the dowel sleeve 14 is inserted such that the housing end 76 points towards structure 30 .
  • the retention strips 80 When properly positioned within the housing 12 , the retention strips 80 are received within the cut-outs 50 , 52 . Due to the general exact fit between the retention strips 80 and the planar area defined by the cut-outs 50 , 52 and recessed areas 66 , the retention strips not only ensure the retention of the dowel sleeve 14 in the housing 12 , but also ensures that the dowel sleeve 14 does not move relative to the housing 12 .
  • the longer ends 68 of the recessed areas 66 are in the same general vertical plane as the screen side 60 of the side walls 62 .
  • the sealing screen 16 may be installed into the space defined by the side walls 62 on the screen side 60 .
  • the sealing screen 16 is of a size and shape so as to fit neatly within this space. This fit ensures that the sealing screen 16 is retained in place during normal manipulation of the improved connector 10 , but can be removed when appropriate force is applied to it.
  • Installation of the sealing screen 16 creates a gap between the sealing screen 16 and the screen side 60 of the seal housing 56 . This gap allows for grout to enter into the body of the housing 12 and also to facilitate ease of movement of the positioner 86 .
  • the aperture 94 surrounds the longer ends 68 of the recessed areas 66 .
  • the dowel cap 100 may now be installed.
  • Installation of the dowel cap 100 is achieved by inserting the securing portion 102 into aperture 94 . Once so installed, the dowel cap 100 is rotated such that the sealing threads 108 mate with the retaining flanges 96 . This connection is then sealed by the overlay of the sealing flange 104 .
  • the improved connector 12 is then manipulated such that the sealing screen 16 and the screen side 60 of the side walls 60 make contact with a vertical formwork strip.
  • screws 124 are placed so that they each extend through through apertures 71 .
  • the screws 124 are aligned such that each screw's head 126 is adapted to cover or be received within its respective through aperture 71 at its housing side 58 .
  • the screws 124 are then appropriately manipulated such that a portion of the threaded element (not shown) of the screw digs into the vertical formwork strip. When all the screws 124 are so manipulated, the improved connector 12 is then held in its desired position relative to the formwork.
  • the rear end 22 of the housing 12 can be propped up by installing a bar chair into slots 36 .
  • Grout tubes (not shown) are then fitted to the first spigot 32 and the second spigot 64 and arranged so that their exposed ends will not be submerged in the resulting section of flooring.
  • Concrete reinforcing in the form of mesh is then placed over the horizontal boards and positioned such as to be embedded in the first section of flooring when poured. With all of the mesh appropriately positioned, the uncured concrete is poured to create the first section of flooring. Once the first section has cured, the vertical formwork strip is removed and the joining surface is cleaned so as to be free of debris.
  • the dowel bar 18 may now be inserted into the housing 12 by way of the sealing ring 106 .
  • the sealing ring 106 deforms to surround part of the smooth portion 114 of the dowel bar 18 . This deformation also acts to create a seal about the dowel bar 18 .
  • the dowel bar 18 Proper installation of the dowel bar 18 is such that the dowel sleeve 14 receives the smooth portion 114 along its full length with the second portion 116 extending fully into the housing 12 .
  • the first portion 114 thus extends into the space to be occupied by the second slab.
  • the anchor nut 122 is installed onto the exposed threaded end 120 .
  • both the first portion 112 and the second portion 114 has a diameter substantially equal to the height of the dowel sleeve 14 .
  • the dowel sleeve 14 operates to severely restrict, if not eliminate, vertical deflection of the dowel bar 18 during subsequent settlement of the remaining section of flooring.
  • the improved connector 10 allows the dowel bar 18 to move relative to each other both telescopically and laterally in line with movement during settling of the remaining section of flooring, but restrict all vertical movement of the dowel bar 18 .
  • aperture 94 must be sufficient such that when the dowel bar 18 moves laterally—taking the dowel cap 100 and positioner 86 with it—it is not impeded by the longer ends 68 .
  • grout is pumped through the grout tube attached to the second spigot 64 . As the pumped grout enters the second spigot 64 it enters first chamber 128 . This grout is then forced upwards until it reaches an opening 130 provided internally in its upper end—at which point it enters the space provided by the abutment 72 between the seal housing 56 and the sealing screen and, ultimately, into the interior of the housing 12 proper.
  • the opening provided internally to the first chamber is higher than the side walls 24 , as the grout enters the interior of the housing 12 proper, it does so at a level equal to the main grout rail level.
  • the grout tubes are cut off and the joined surfaces treated so as to remove all trace of the improved connector in the finished floor.
  • these components are modified to facilitate quick fit connectors.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Lining And Supports For Tunnels (AREA)
US16/343,008 2016-10-20 2017-10-20 Improved Connector for Use in Forming Joints Abandoned US20200056369A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2016904262A AU2016904262A0 (en) 2016-10-20 Improved connector for use in forming joints
AU2016904262 2016-10-20
PCT/AU2017/051148 WO2018071987A1 (en) 2016-10-20 2017-10-20 Improved connector for use in forming joints

Publications (1)

Publication Number Publication Date
US20200056369A1 true US20200056369A1 (en) 2020-02-20

Family

ID=62018126

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/343,008 Abandoned US20200056369A1 (en) 2016-10-20 2017-10-20 Improved Connector for Use in Forming Joints

Country Status (7)

Country Link
US (1) US20200056369A1 (zh)
EP (1) EP3529423A4 (zh)
CN (1) CN109923270B (zh)
AU (3) AU2017338256A1 (zh)
CA (1) CA3081340A1 (zh)
SG (1) SG11201903486QA (zh)
WO (1) WO2018071987A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220064873A1 (en) * 2018-12-21 2022-03-03 Lance Rogers Improved connector
EP4026958A3 (de) * 2021-01-12 2022-10-12 Schöck Bauteile GmbH Vorrichtung zum kraftübertragenden verbinden eines ersten tragenden gebäudeteils mit einem zweiten getragenen gebäudeteil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2020101449C4 (en) * 2018-12-21 2023-08-31 Max Frank Gmbh & Co. Kg Improved Connector
CN117449600B (zh) * 2023-11-01 2024-06-11 资阳建工建筑有限公司 一种独立基础节点连接构造及其施工方法

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US4878327A (en) * 1987-03-13 1989-11-07 Dyckerhoff & Widmann Aktiengesellschaft Corrosion protected tension member for use in prestressed concrete and method of installing same
USRE35902E (en) * 1993-05-14 1998-09-22 Jennmar Corporation Bearing plate
US7625155B1 (en) * 2009-03-25 2009-12-01 Safe Overhead Systems, Inc. Mine roof cable bolt assembly
US8087204B1 (en) * 2008-07-08 2012-01-03 Sorkin Felix L Sealing cap for intermediate anchor system
US8740504B2 (en) * 2011-12-08 2014-06-03 Fci Holdings Delaware, Inc. Apparatus and method for re-tensioning a loose roof plate in an underground mine
US20140227024A1 (en) * 2013-02-11 2014-08-14 Robert Gilling Assembly for connecting rebar segments
US20140245678A1 (en) * 2011-03-14 2014-09-04 Actuant Corporation High Performance Wedge Design for Post-Tension Anchorage
US20180023298A1 (en) * 2015-02-02 2018-01-25 Actuant Corporation Concrete tendon gripping and sealing apparatus and method
US20180094450A1 (en) * 2016-10-04 2018-04-05 Felix Sorkin Barrier cable anchor
US20190242132A1 (en) * 2018-02-05 2019-08-08 Precision-Hayes International Inc. Concrete anchor and cover for same
US20190242131A1 (en) * 2018-02-05 2019-08-08 Precision-Hayes International Inc. Concrete anchor with retainer
US10508447B2 (en) * 2017-04-28 2019-12-17 Precision-Hayes International Inc. Sealing cover for concrete anchor

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US2039420A (en) * 1935-07-29 1936-05-05 Isett John Warren Method of constructing, repairing, and widening concrete roads
JPS5431269Y2 (zh) 1976-10-21 1979-09-29
EP0328484A1 (de) * 1988-02-11 1989-08-16 Egco Ag Gleithülse zur Aufnahme eines Querkraftdornes
US5653078A (en) 1995-09-29 1997-08-05 Erico International Corporation Variable embedment anchor and method
WO2015117190A1 (en) * 2014-02-06 2015-08-13 Srg Limited Connector for use in forming joints

Patent Citations (13)

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Publication number Priority date Publication date Assignee Title
US4878327A (en) * 1987-03-13 1989-11-07 Dyckerhoff & Widmann Aktiengesellschaft Corrosion protected tension member for use in prestressed concrete and method of installing same
USRE35902E (en) * 1993-05-14 1998-09-22 Jennmar Corporation Bearing plate
US8087204B1 (en) * 2008-07-08 2012-01-03 Sorkin Felix L Sealing cap for intermediate anchor system
US7625155B1 (en) * 2009-03-25 2009-12-01 Safe Overhead Systems, Inc. Mine roof cable bolt assembly
US20140245678A1 (en) * 2011-03-14 2014-09-04 Actuant Corporation High Performance Wedge Design for Post-Tension Anchorage
US8740504B2 (en) * 2011-12-08 2014-06-03 Fci Holdings Delaware, Inc. Apparatus and method for re-tensioning a loose roof plate in an underground mine
US20140227024A1 (en) * 2013-02-11 2014-08-14 Robert Gilling Assembly for connecting rebar segments
US20180023298A1 (en) * 2015-02-02 2018-01-25 Actuant Corporation Concrete tendon gripping and sealing apparatus and method
US20180094450A1 (en) * 2016-10-04 2018-04-05 Felix Sorkin Barrier cable anchor
US10508447B2 (en) * 2017-04-28 2019-12-17 Precision-Hayes International Inc. Sealing cover for concrete anchor
US20190242132A1 (en) * 2018-02-05 2019-08-08 Precision-Hayes International Inc. Concrete anchor and cover for same
US20190242131A1 (en) * 2018-02-05 2019-08-08 Precision-Hayes International Inc. Concrete anchor with retainer
US10570619B2 (en) * 2018-02-05 2020-02-25 Precision-Hayes International Inc. Concrete anchor and cover for same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220064873A1 (en) * 2018-12-21 2022-03-03 Lance Rogers Improved connector
EP4026958A3 (de) * 2021-01-12 2022-10-12 Schöck Bauteile GmbH Vorrichtung zum kraftübertragenden verbinden eines ersten tragenden gebäudeteils mit einem zweiten getragenen gebäudeteil

Also Published As

Publication number Publication date
EP3529423A1 (en) 2019-08-28
WO2018071987A1 (en) 2018-04-26
AU2020205245B2 (en) 2022-04-07
AU2018101574A4 (en) 2018-11-29
AU2017338256A1 (en) 2018-05-10
SG11201903486QA (en) 2019-05-30
CN109923270A (zh) 2019-06-21
CN109923270B (zh) 2020-12-01
CA3081340A1 (en) 2018-04-26
EP3529423A4 (en) 2020-06-24
AU2020205245A1 (en) 2020-07-30
AU2018101574B4 (en) 2019-06-27

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