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WO1998033994A1 - Epissure de barre d'armature et procede - Google Patents

Epissure de barre d'armature et procede Download PDF

Info

Publication number
WO1998033994A1
WO1998033994A1 PCT/US1998/001903 US9801903W WO9833994A1 WO 1998033994 A1 WO1998033994 A1 WO 1998033994A1 US 9801903 W US9801903 W US 9801903W WO 9833994 A1 WO9833994 A1 WO 9833994A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
bar
set forth
connection
socket
Prior art date
Application number
PCT/US1998/001903
Other languages
English (en)
Inventor
Antonius M. Kies
Original Assignee
Erico International Corporation
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 Erico International Corporation filed Critical Erico International Corporation
Priority to AU62602/98A priority Critical patent/AU6260298A/en
Publication of WO1998033994A1 publication Critical patent/WO1998033994A1/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
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves
    • 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

Definitions

  • This invention relates generally as indicated to a reinforcing bar splice and method, and more particularly to a splice and method useful in steel reinforced concrete structures whether cast-in-place or precast, which facilitates the computer aided design (CAD) and detailing of the structure and the steel reinforcing of such structure.
  • CAD computer aided design
  • CAD Computer aided design
  • Computer aided design approaches normally start out with elevations moving to perspectives of what might be termed a working model, which may be enhanced by animation or further enhanced to a virtual reality walk-through.
  • the three dimensional images may be viewed from any direction, or any part through any section.
  • the overall structure and its components may be subject to various loadings such as wind oscillations, seismic ratings, compressive and tensile loadings; the results viewed, and materials and designs altered as a result.
  • the criteria for each building structural component can be determined and the detailing of the component such as the frame, columns, slabs, footings, etc., can proceed apace. With 4D CAD, the contractors, suppliers, and even scheduling become involved in the design process.
  • Computed aided design has become a boon to architects and engineers, as well as owners.
  • steel reinforced concrete structures have been over designed with, for example, columns being larger than necessary, or beams or footers thicker than necessary, and containing more steel than necessarily desirable. Size in floors, columns, walls and beams in a structural frame is dead space unrentable or unusable to the owner. It is also usually not visible. Also, the larger the size, the more costly and longer construction usually takes.
  • Computer aided design in the detailing of the steel for steel reinforced concrete structures requires more versatility.
  • the splices require greater flexibilities in transferring loads both compressive and tensile, from bar to bar regardless of the alignment of the two bars.
  • Computer aided design particularly lends itself to bar continuity rather than overlap or wire binding. It also tends to avoid applications where bars have to be bent. Bending is costly, cannot be done to close tolerances, and makes the bar difficult to handle and install with continuity or continuation of bar from one part of a structure to another without overlap or binding. This is particularly true in the areas noted above. There are many areas where rectilinear continuous connections are desirable and useful.
  • a splice system which could be positioned quickly and easily anywhere along a first bar and have further bar or bars joined to that bar transversely, on one or both sides. It would further be desirable if the splice system could be positioned adjustably along such first bar, easily secured in position, and filled with cement paste intrusion when the pour occurs whether in a poured-in-place or precast system.
  • a steel reinforcing bar for concrete construction utilizes a sleeve which may be telescoped over a bar.
  • the sleeve includes one or more laterally extending sockets adapted to receive bar ends extending transversely to the first bar telescoped through the sleeve.
  • the sleeve is held in place by a set screw accessible through the bottom of one of said sockets.
  • the set screw is a recessed head screw which may conveniently be tightened by an Allen wrench through the socket.
  • the interior of the sleeve is open at both ends to receive concrete paste acting as grout when the concrete is poured.
  • the set screw and at least one socket are preferably centered between the ends of the sleeve to avoid interference with such concrete paste intrusion.
  • the interior of the sleeve may have surface irregularities and a pressure point or projection opposite the set screw to maintain the sleeve approximately centered on the bar over which it is telescoped to provide clearance for such concrete paste intrusion.
  • the bar received in such transversely extending sockets is preferably taper threaded although other splice systems may be employed such as straight threads, deformed sleeves, or others.
  • the taper thread system is preferred because the bar can be secured in place with just a few turns.
  • position splices may be provided having straight thread inserts with a tapered thread socket. The position splice insert is threaded on the bar and locked in place.
  • the splice system permits bar to be connected transversely on one or both sides of another bar with all of the connected bars being in the same plane.
  • the sleeve of the system can quickly be positioned at any location along one bar and locked in place by quickly tightening a set screw. If necessary, the sleeve can be quickly repositioned before the pour.
  • the flexibility afforded by the connection and system greatly facilitates the computer aided design or detailing of the steel of steel reinforced concrete construction whether poured-in-place or precast.
  • Figure 1 is a perspective view of one form of the connection with a wrench tightening the set screw.
  • Figure 2 is a similar perspective of another embodiment
  • Figure 3 is an axial section through the connection of Figure 1 ;
  • Figure 4 is a similar section of a somewhat modified connection
  • Figure 5 is an axial section of the Figure 2 connection with bars connected on opposite sides of the sleeve;
  • Figure 6 is yet another embodiment showing the use of a position splice where the bar at the bottom of the figure need not rotate.
  • the connection has a body shown generally at 1 2 which includes a relatively short open sleeve 1 3 and a lateral projection 14.
  • the projection 14 is at the mid-point of the sleeve 1 3 and includes an external flatted configuration indicated at 1 6 which may be in the form of the hexagon enabling the body to be grasped with a wrench.
  • the body 1 2 is in the form of a T with the projection 1 4 forming the stem of the T and the relatively short sleeve 1 3 forming the top.
  • the body may be machined from a forging or a steel or ductile iron casting or pieces sawn from a cold or hot steel extrusion, for example.
  • the sleeve 1 3 is open at both ends indicated at 1 8 and 1 9 to receive in telescoping fashion a first reinforcing bar shown at 20.
  • the bar 20 telescopes through the sleeve with some clearance.
  • the interior of the sleeve is provided with irregularities which may be in the form of annular internal groves.
  • a projection 26 projects into such groove a radial distance greater than the ridges 27 between the grooves and such projection is directly opposite the axis of the projection 14.
  • the projection 14 as illustrated in Figure 3 is provided with internal tapered threads 30 matching the external tapered threads 31 on bar 32.
  • the interior of the taper threaded socket terminates in a straight threaded bore 34.
  • the straight threaded bore opens into the interior of the sleeve 13.
  • a set screw 35 having a hexagonal recessed drive head 36 which is adapted to receive an Allen wrench as shown at 38 in Figure 1 .
  • the tip 40 of the set screw forces the bar 20 against the projection 28 and locks the body or sleeve to the bar 20.
  • the radial extent of the projection 26 is selected to maintain adequate clearance around the bar 20 within the sleeve so that when concrete is poured around the sleeve, cement paste intrusion will enter the sleeve providing a tough grout splice connection between the sleeve and bar 20.
  • the projection and set screw also provide good electrical connection between the bars being joined which can be important in grounding or cathodic protection systems.
  • the connector or sleeve 1 3 is positioned along the bar 20 in telescoping fashion at the desired position and the set screw tightened. If it is found that the sleeve is in not quite in the right position, it can quickly be moved along the bar 20 simply by loosening and then retightening the set screw. After the sleeve is in the correct position, the bar 31 is attached with a few quick turns. When concrete is poured around the connection, either in a poured-in- place construction, or in precast construction, cement paste will enter the interior of the sleeve filling the grooves 22, 23, 24, 25 and 26.
  • connection shown generally at 50 includes a body having a relatively short sleeve 51 which is provided with coaxial centered and symmetrical projections 52 and 53 each having the flatted external configuration shown at 54.
  • the sleeve 51 accommodates a first steel reinforcing bar 56 in telescoping fashion which extends completely therethrough.
  • the interior of the sleeve indicated at 57 may be plain as illustrated or irregular as in Figure 3.
  • the sleeve is provided with a radially inwardly extending center projection 58 opposite the tip 59 of set screw 60 having recessed drive head 61 which is threaded in straight threaded bore 62 in the socket of projection 53.
  • the set screw may be tightened in place on the bar 56 by the Allen wrench 38 seen in Figure 2.
  • connection After being locked on the bar, if for some reason the connection is in the wrong position, it can readily be repositioned simply by loosening and then retightening the set screw.
  • the projection 53 is provided with the internal tapered threads 30 at the mouth receiving the matching external tapered threads section 31 of the bar 32.
  • the tapered threads lead to the straight threaded bore 62 which opens to the interior of the sleeve 51 .
  • the opposite projection 52 is provided with a blind internal tapered thread section 65 receiving the matching external tapered threads 66 on the end of bar 67.
  • the connection can thus readily be positioned essentially anywhere along the one bar and can be used in anchors, terminations, grids, dowel bar connections or even in shear connections at column-slab intersections. It will also be appreciated that the bars need not all be the same size and that the bar telescoped through the sleeve may be larger than the bars extending transversely from the sleeve projections.
  • a position coupler is illustrated generally at 70 in Figure 6.
  • the connection includes a body 71 forming the sleeve 72 through which telescopes the first bar 56.
  • the axially opposite projections 74 and 75 accommodate and connect to bars 67 and 32 respectively.
  • the bar 67 is secured in the projection 74 through the blind tapered threaded socket 65.
  • the projection 75 however includes internal straight threads 76 in which is threaded with matching external threads a position splice insert member 77.
  • the end or mouth of the position splice member is provided with a tapered threaded socket 78 accommodating the matching threads 31 of the end of the bar 32.
  • a lock nut seen at 79 is also threaded on the exterior of the position splice insert member.
  • the connection with the bar 32 will be made by rotating the position splice insert member 77 tightening such member on the non-rotating bar 32 through a wrench on the hexagonal or flatted end 80. After the position splice member is tightened on the bar, the position splice member is locked in place by lock nut 79 tightened against the end of the projection 75. This avoids any slip.
  • the body 71 is locked on the rod 56 by tightening of the set screw 82 through an Allen wrench inserted through hole 83 in position splice member 77. This permits the set screw to be manipulated without removing the member 77.
  • the set screw may be provided axially at the bottom of the socket in the projection 74. It will be appreciated that the embodiments shown in Figures 3 and 4 may have a position socket instead of the tapered socket, and in Figures 5 and 6 both sockets may be position sockets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

La présente invention a trait à un raccordement en acier pour béton armé présentant un manchon relativement court (13) que l'on peut coulisser par déploiement sur barre (20) et que l'on peut maintenir en place par un jeu de vis (35) accessible à travers une douille s'étendant de manière transversale (30, 34). Une autre barre (32) peut être fixée à l'intérieur de la douille et on peut ajouter des douilles opposées et des barres de raccordement. L'intérieur du manchon est ouvert des deux côtés pour permettre la pénétration de la pâte de béton de construction coulée sur place ou préfabriquée. La surface intérieure du manchon peut comporter des irrégularités (27) et un point de pression saillant (26) opposé au jeu de vis pour maintenir le manchon centré quand la vis est serrée. De préférence, les barres transversales sont fixées avec des filetages coniques, directement ou à travers un élément d'épissure.
PCT/US1998/001903 1997-02-04 1998-02-03 Epissure de barre d'armature et procede WO1998033994A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU62602/98A AU6260298A (en) 1997-02-04 1998-02-03 Reinforcing bar splice and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3713097P 1997-02-04 1997-02-04
US60/037,130 1997-02-04

Publications (1)

Publication Number Publication Date
WO1998033994A1 true WO1998033994A1 (fr) 1998-08-06

Family

ID=21892593

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/001903 WO1998033994A1 (fr) 1997-02-04 1998-02-03 Epissure de barre d'armature et procede

Country Status (2)

Country Link
AU (1) AU6260298A (fr)
WO (1) WO1998033994A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233124A1 (de) * 2002-07-20 2004-02-12 Krummel, Gerhard, Dipl.-Ing. Rahmeneckbewehrung zwischen zwei winklig aufeinander stoßenden Wänden oder stabförmigen Bauteilen, z.B. Verbindung zwischen Stütze und Unterzug
CN102287031A (zh) * 2011-08-31 2011-12-21 建研科技股份有限公司 一种钢筋锚固件
CN103114726A (zh) * 2013-02-04 2013-05-22 中天建设集团有限公司 一种后浇带钢筋可断开连接方法
JP2017214805A (ja) * 2016-06-02 2017-12-07 鹿島建設株式会社 鉄筋接続構造及びボックスカルバートの配筋方法
CN107844677A (zh) * 2017-12-19 2018-03-27 中国电建集团成都勘测设计研究院有限公司 用于三维钢筋编辑更新的方法
CN108868008A (zh) * 2018-08-19 2018-11-23 中国矿业大学 可更换螺纹套筒延性钢筋连接装置及安装和更换方法
US11359376B2 (en) * 2019-05-14 2022-06-14 John C. Tutino Threaded rod coupling with main receptacle and one or more receptacles extending therefrom at an angle
CN115178977A (zh) * 2022-07-28 2022-10-14 威海华邦精冲科技股份有限公司 一种锥套锁紧钢筋接头生产工艺及其生产线
CN115288002A (zh) * 2022-07-25 2022-11-04 云南楚姚高速公路有限公司 一种玻璃纤维筋在桥面铺装应用

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1274319B (de) * 1959-10-24 1968-08-01 Zueblin Ag Loesbare Klemme an Bewehrungsbuegeln od. dgl.
US3415552A (en) * 1966-11-29 1968-12-10 Howlett Machine Works Splicing metallic reinforcing rods with a threaded coupling sleeve
CH497619A (de) * 1970-04-10 1970-10-15 Alphonse Yee Alfred Spleisshülse zur Bildung einer zugübertragenden Verbindung zwischen Bewehrungsstäben
US3701555A (en) * 1969-11-24 1972-10-31 Kenneth D Harris Clamp
FR2435576A1 (fr) * 1978-09-07 1980-04-04 Lande Irving Procede et dispositif pour la jonction d'aboutement de barres d'armatures a beton
US4695178A (en) * 1985-07-30 1987-09-22 Okabe Co., Ltd. Joint for reinforcing bar employed in concrete construction
US5125761A (en) * 1990-04-09 1992-06-30 Cullen William E Seismic hold down device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1274319B (de) * 1959-10-24 1968-08-01 Zueblin Ag Loesbare Klemme an Bewehrungsbuegeln od. dgl.
US3415552A (en) * 1966-11-29 1968-12-10 Howlett Machine Works Splicing metallic reinforcing rods with a threaded coupling sleeve
US3701555A (en) * 1969-11-24 1972-10-31 Kenneth D Harris Clamp
CH497619A (de) * 1970-04-10 1970-10-15 Alphonse Yee Alfred Spleisshülse zur Bildung einer zugübertragenden Verbindung zwischen Bewehrungsstäben
FR2435576A1 (fr) * 1978-09-07 1980-04-04 Lande Irving Procede et dispositif pour la jonction d'aboutement de barres d'armatures a beton
US4695178A (en) * 1985-07-30 1987-09-22 Okabe Co., Ltd. Joint for reinforcing bar employed in concrete construction
US5125761A (en) * 1990-04-09 1992-06-30 Cullen William E Seismic hold down device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10233124A1 (de) * 2002-07-20 2004-02-12 Krummel, Gerhard, Dipl.-Ing. Rahmeneckbewehrung zwischen zwei winklig aufeinander stoßenden Wänden oder stabförmigen Bauteilen, z.B. Verbindung zwischen Stütze und Unterzug
DE10233124B4 (de) * 2002-07-20 2008-05-08 Krummel, Gerhard, Dipl.-Ing. Rahmeneckbewehrung zwischen zwei winklig aufeinander stoßenden Wänden oder stabförmigen Bauteilen, z.B. eine Verbindung zwischen Stütze und Unterzug
CN102287031A (zh) * 2011-08-31 2011-12-21 建研科技股份有限公司 一种钢筋锚固件
CN103114726A (zh) * 2013-02-04 2013-05-22 中天建设集团有限公司 一种后浇带钢筋可断开连接方法
JP2017214805A (ja) * 2016-06-02 2017-12-07 鹿島建設株式会社 鉄筋接続構造及びボックスカルバートの配筋方法
CN107844677A (zh) * 2017-12-19 2018-03-27 中国电建集团成都勘测设计研究院有限公司 用于三维钢筋编辑更新的方法
CN107844677B (zh) * 2017-12-19 2021-03-19 中国电建集团成都勘测设计研究院有限公司 用于三维钢筋编辑更新的方法
CN108868008A (zh) * 2018-08-19 2018-11-23 中国矿业大学 可更换螺纹套筒延性钢筋连接装置及安装和更换方法
US11359376B2 (en) * 2019-05-14 2022-06-14 John C. Tutino Threaded rod coupling with main receptacle and one or more receptacles extending therefrom at an angle
CN115288002A (zh) * 2022-07-25 2022-11-04 云南楚姚高速公路有限公司 一种玻璃纤维筋在桥面铺装应用
CN115178977A (zh) * 2022-07-28 2022-10-14 威海华邦精冲科技股份有限公司 一种锥套锁紧钢筋接头生产工艺及其生产线

Also Published As

Publication number Publication date
AU6260298A (en) 1998-08-25

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