EP0886008A1 - Piece pour mandrin d'attache travaillant en cisaillement - Google Patents

Piece pour mandrin d'attache travaillant en cisaillement Download PDF

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Publication number
EP0886008A1
EP0886008A1 EP97110097A EP97110097A EP0886008A1 EP 0886008 A1 EP0886008 A1 EP 0886008A1 EP 97110097 A EP97110097 A EP 97110097A EP 97110097 A EP97110097 A EP 97110097A EP 0886008 A1 EP0886008 A1 EP 0886008A1
Authority
EP
European Patent Office
Prior art keywords
shoulder
load
load distributor
concrete
distributor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97110097A
Other languages
German (de)
English (en)
Inventor
Toni H. Erb
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP97110097A priority Critical patent/EP0886008A1/fr
Publication of EP0886008A1 publication Critical patent/EP0886008A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/14—Dowel assembly ; Design or construction of reinforcements in the area of joints

Definitions

  • the invention relates to an individual part of a shear connector assembly, which a load part for a transverse force-transmitting active connection with a corresponding second part of the shear connector assembly and one Has tubular load distributors (5, 13) with an inner space open in the axial direction.
  • Shear connector assemblies are used to transfer shear forces between adjacent ones Transfer concrete parts (e.g. floor slabs) while allowing dilatation movements.
  • Such arrangements are e.g. B. from EP 0 032 105 A1 (Aschwanden) and CH 687 262 A5 (Erb) known. It will be in the neighboring concrete parts two individual parts (namely a mandrel and a bearing sleeve element) concreted.
  • EP 0 032 105 A1 mandrel and sleeve expanded a cylindrical or conical plastic body. This local expansion of the diameter leads to a larger surface, so that the load per Area unit is reduced.
  • the closed plastic body has the disadvantage that the volume he takes up is basically a cavity in the concrete and thus weakening the concrete structure.
  • a shear connector assembly that does not have this disadvantage is from the CH 687 262 A5 known.
  • a load distribution pipe made of metal.
  • the ribs support the load distribution pipe of its entire length on the central mandrel or the bearing sleeve and thus ensure that the forces occurring on the mandrel are dissipated to the outside and distributed in the concrete. Since the concrete can flow into the load distribution pipe, the concrete structure will not weakened.
  • a nail plate On the front of the bearing sleeve element is a nail plate in a manner known per se attached (cf. Fig. 1a, b in CH 687 262 A5 and Fig. 5 in EP 0 032 105 A1). This enables it, the element when creating the shear connector on the formwork (which subsequently poured out with concrete). (The mandrel element does not need Nail plate as it is held in the bearing sleeve during the concreting process.)
  • the object of the invention is to provide the individual parts of a shear connector connection arrangement to be designed so that they have improved pull-out strength compared to the prior art award.
  • the solution to this problem is defined by the features of claim 1.
  • the core of the Invention is that the load from the central element (mandrel, bearing sleeve) by means of a massive shoulder and a load distribution pipe placed on top of it in the concrete becomes.
  • the shoulder is thus designed in such a way that the forces are radially efficient can be directed outside.
  • their axial extent i.e. their width
  • the load distribution in the axial direction is due to the tube sitting on the shoulder causes.
  • no radial ribs (as known from CH 687 262 A5 are) needed.
  • the concrete can therefore be lighter and easier in the interior of the load distributor flow.
  • additional Longitudinal ribs are provided.
  • the solid shoulder is arranged on the individual part (mandrel, sleeve) in such a way that - when concreted in Single part - can connect to the interface of the concrete part.
  • the load distribution pipe protrudes backwards into the concrete. Since the shoulder is not in the present case is completely cast in the concrete, it must be made of a non-corrosive material consist (preferably of stainless steel).
  • the shoulder has an extension in the axial direction, which is larger than a diameter of the mandrel or the bearing sleeve.
  • the load distributor in turn has an axial extent that is a multiple of the axial extent the shoulder is.
  • the shoulder is therefore much shorter than the load distributor. The difference however, it is not sufficient for the prior art according to EP 0 032 105 A1 wide in order to effect an effective load distribution in the concrete. Typically its width is less than 3 times the diameter of the loading part.
  • the gap between the central load part and the load distributor should be large enough so that the concrete can flow in well.
  • the inner diameter the load manifold is z. B. two to four times the diameter of the loading element.
  • the load distribution pipe can with respect to a front, at the interface of the concrete part adjoining the front of the shoulder. It is in concrete then completely surrounded it by the concrete. This has the advantage that it is not corrosion resistant have to be. Instead of stainless steel, a cheaper material can be used be used.
  • the load distribution pipe is in the sense of a cost-effective and high-quality production pressed onto the jacket side of the shoulder.
  • Welded connection may be provided.
  • shoulder and load balancer are formed in one piece from one piece.
  • Anchoring brackets are preferably attached on the outside of the load distributor pipe. She extend in the axial direction and maximize the pull-out strength. You can join anchored to the shoulder or to the load distribution tube. According to a particularly advantageous one Embodiment is on the load distributor a perpendicular to the longitudinal axis of the mandrel or attached to the bearing sleeve anchoring plate on which the anchoring bracket then attached. This anchoring plate can completely flow around the concrete and therefore need not be corrosion-resistant.
  • the anchoring brackets are angled at the rear ends. They form e.g. B. a kind square frame that can be open or closed. They have in the axial direction an extension that is preferably greater than that of the load distributor.
  • the single part that forms the bearing sleeve of the shear connector assembly is in in a known manner equipped with a nail plate.
  • a solid shoulder 3 made of stainless steel (e.g. CrNi steel). Your end face 3.1 will adjoin the joint gap when the sliding sleeve 1 in Concrete is properly anchored.
  • a nail plate 4 is welded. The front the nail plate 4 forms a continuous plane with the end face 5.1.
  • a load distributor tube 5 sits on the lateral surface 3.2 of the shoulder 3. It is in the present embodiment with respect to the end face 3.1 in the axial direction set back. That is, there is a minimal distance between the front edge of the Load distributor pipe 5 and the joint gap available, which is taken up by the concrete becomes. This distance is chosen so that the load distributor pipe 5 is concreted in is protected against the effects of corrosion.
  • the load distributor pipe 5 extends rearward in the axial direction. Between him and an inner space 7 is formed of the sliding sleeve 1, which is to be filled with concrete. In order to To avoid air pockets, there are 5 openings 6.1, 6.2 in the load distribution pipe intended. You are in the area of shoulder 3.
  • An anchoring plate 8 is attached to the outside of the load distributor tube 5. in the In the present example, it is located in the area of the rear end of the shoulder 3 (i.e. in a place where the load distribution pipe 5 is supported by the shoulder 3).
  • two anchoring brackets 9, 10 are welded on. she run back in the direction of the longitudinal axis of the sliding sleeve 1 into the concrete and can be connected or hooked to the reinforcing bars of the concrete element if necessary will.
  • the rear ends 10.1, 10.2 are z. B. angled.
  • the rear end of the sliding sleeve 1 is in a known manner with a pin 11 (z. B. made of plastic).
  • the length of the sliding sleeve 1 is z. B. in the range of 15 cm to 20 cm, the diameter e.g. B. at 20 mm to 30 mm.
  • the shoulder 3 is ring-shaped and has a width which is approximately that 1.5 to 2 times twice the diameter of the sliding sleeve 1 corresponds.
  • the diameter the shoulder 3 is two to three times as large as the diameter of the sliding sleeve. In the present For example, the shoulder 3 is about 4 cm wide and about 7 cm in diameter.
  • the nail plate 4 is z. B. rectangular and connected to the shoulder 3 by a weld.
  • the design can be carried out in a manner known per se.
  • the load distributor tube 8 has approximately the same diameter as the shoulder 3 and is approximately half as long as the sliding sleeve 1. Since it sets back against the end face 3.1 of the shoulder 3 it protrudes into the rear half of the sliding sleeve 1.
  • the distance between the front edge of the load distributor tube 5 and the nail plate 4 is of the order of magnitude from 2 cm to 3 cm.
  • the anchoring plate 8 is, for. B. rectangular and relatively solid.
  • the outside dimensions are, for example, 10 cm x 14 cm.
  • the thickness is z. B. 6 mm.
  • the anchoring brackets 9, 10 are flat (open or closed) square structures, which preferably extend into the area of the rear end of the sliding sleeve 1. To a certain extent, they delimit a cuboid volume.
  • the mandrel 2 shown in FIGS. 2a, b is equipped somewhat similarly to the guide sleeve 1.
  • the shoulder 12 sits like a cuff in the middle of the mandrel. It carries the load distributor pipe 13, which in turn sets back relative to the front face of the shoulder 12 is.
  • the anchoring plate is a mirror image of the sleeve part according to FIGS. 1a, b 14 and the anchoring bracket 15, 16 are provided.
  • the geometric dimensions of the load distribution pipes 5 and 13, the anchoring plates 8 and 14 and the anchor bracket 9, 10 and 15, 16 are in the present example equal. Because of the selected position of the shoulder 12 on the mandrel 2, this extends Load distribution tube 13 up to the area of the rear end of the mandrel 2.
  • the described embodiment can be modified in many ways without the Is left within the scope of the invention.
  • the geometric dimensions are of course on adapt the requirements regarding the load capacity of the shear connector.
  • Mandrel, bearing sleeve and load distribution pipe can be round, square in cross-section or be shaped differently. With limited load z. B. on the anchor bracket to be dispensed with. It is also not excluded that the above Bracket designed differently or attached to the load distribution pipe at another point are. It is also by no means imperative that the brackets run in the axial direction. You can also run radially outwards or in a direction perpendicular to the longitudinal axis of the individual part Level arranged.
  • the load distribution pipe is preferably cylindrical, can but also expand conically to the rear. Similar things can be said for the shoulder. Instead of a cylindrical shape, a conical shape is also conceivable.
  • the invention provides a shear connector has been created for the highest demands, which at the same time is relatively low Effort. It can be constructed from a few simple elements will. It is not necessary that all parts are of high quality and therefore relatively expensive non-corrosive steel.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP97110097A 1997-06-20 1997-06-20 Piece pour mandrin d'attache travaillant en cisaillement Withdrawn EP0886008A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97110097A EP0886008A1 (fr) 1997-06-20 1997-06-20 Piece pour mandrin d'attache travaillant en cisaillement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97110097A EP0886008A1 (fr) 1997-06-20 1997-06-20 Piece pour mandrin d'attache travaillant en cisaillement

Publications (1)

Publication Number Publication Date
EP0886008A1 true EP0886008A1 (fr) 1998-12-23

Family

ID=8226935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97110097A Withdrawn EP0886008A1 (fr) 1997-06-20 1997-06-20 Piece pour mandrin d'attache travaillant en cisaillement

Country Status (1)

Country Link
EP (1) EP0886008A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1113115A3 (fr) * 1999-12-30 2002-10-09 SCHÖCK BAUTEILE GmbH Douille et broche pour la connection d'éléments de construction adjacents
EP2146004A2 (fr) 2008-07-17 2010-01-20 BS Ingenieure AG Connexion de broche travaillant en cisaillement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032105A1 (fr) * 1980-01-04 1981-07-15 Ulisse C. Aschwanden Broche et douille pour la liaison d'éléments de construction en génie civil
EP0554483A1 (fr) * 1992-02-05 1993-08-11 Claude Meyers Elément de liaison et de répartition des contraintes pour éléments de construction en béton
CH687262A5 (de) * 1993-10-14 1996-10-31 Anton H Erb In Beton eingiessbares Einzelteil einer Schubdornverbindungsanordnung.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032105A1 (fr) * 1980-01-04 1981-07-15 Ulisse C. Aschwanden Broche et douille pour la liaison d'éléments de construction en génie civil
EP0554483A1 (fr) * 1992-02-05 1993-08-11 Claude Meyers Elément de liaison et de répartition des contraintes pour éléments de construction en béton
CH687262A5 (de) * 1993-10-14 1996-10-31 Anton H Erb In Beton eingiessbares Einzelteil einer Schubdornverbindungsanordnung.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1113115A3 (fr) * 1999-12-30 2002-10-09 SCHÖCK BAUTEILE GmbH Douille et broche pour la connection d'éléments de construction adjacents
EP2146004A2 (fr) 2008-07-17 2010-01-20 BS Ingenieure AG Connexion de broche travaillant en cisaillement
DE102008033585A1 (de) * 2008-07-17 2010-02-18 Bs Ingenieure Ag Schubdornverbindung
DE102008033585B4 (de) * 2008-07-17 2010-04-29 Bs Ingenieure Ag Schubdornverbindung

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