EP0765967A1 - Procédé de fabrication d'un boulon de force transversale et boulon fabriqué par ce procédé - Google Patents

Procédé de fabrication d'un boulon de force transversale et boulon fabriqué par ce procédé Download PDF

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Publication number
EP0765967A1
EP0765967A1 EP96810578A EP96810578A EP0765967A1 EP 0765967 A1 EP0765967 A1 EP 0765967A1 EP 96810578 A EP96810578 A EP 96810578A EP 96810578 A EP96810578 A EP 96810578A EP 0765967 A1 EP0765967 A1 EP 0765967A1
Authority
EP
European Patent Office
Prior art keywords
core
jacket
stainless steel
steel
shear force
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.)
Granted
Application number
EP96810578A
Other languages
German (de)
English (en)
Other versions
EP0765967B1 (fr
Inventor
Erich Müller
Gottfried Breuer
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.)
Pecon AG
Original Assignee
Pecon AG
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 Pecon AG filed Critical Pecon AG
Priority claimed from AU15026/97A external-priority patent/AU729030B2/en
Publication of EP0765967A1 publication Critical patent/EP0765967A1/fr
Application granted granted Critical
Publication of EP0765967B1 publication Critical patent/EP0765967B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49789—Obtaining plural product pieces from unitary workpiece
    • Y10T29/49798—Dividing sequentially from leading end, e.g., by cutting or breaking

Definitions

  • the present invention relates to a method for producing a transverse force mandrel consisting of a steel core and a jacket made of stainless steel, and a transverse force mandrel produced by this method.
  • Shear force pins are used for horizontal connection and power transmission between two components.
  • they are used in the expansion joint area of two adjacent floor slabs and to support stair pedestal panels with adjoining components.
  • the shear force mandrels are supported on both sides of the expansion joint in corresponding bearing sleeves. While the horizontal stretching movement must be allowed, the relative vertical movement should be prevented.
  • shear force mandrels are inevitably subject to environmental conditions in the expansion joint area and can therefore corrode. Accordingly, many providers have switched to shear force mandrels made entirely of high-quality stainless steel to manufacture. Such shear force mandrels are preferably made of chromium-nickel-molybdenum steel. This is extremely expensive and still cannot meet security requirements in certain areas of application. According to recent findings, rods made entirely of stainless steel tend to become hydrogen embrittlement, which reduces the strength of the material.
  • the outer dimension of the core and the inner dimension of the jacket have a tolerance field.
  • the outer dimension of the casing has a tolerance field and such a tolerance field also has the inner dimension of the bearing sleeve in which the transverse force mandrel is mounted. As previously mentioned, all of these tolerances can add up.
  • the game thus obtained thus gives a certain freedom of movement in the vertical direction between two horizontal components which are connected to one another by means of transverse force mandrel connections. The vibrations occurring in the building therefore lead to vertical movements, which lead to corresponding crack formation in the Guide the area of the transverse force mandrel connections.
  • the tolerance field between the lateral force mandrel and the bearing sleeve in which the lateral force mandrel is stored is also reduced.
  • the shear force mandrel produced by the above-mentioned process can either be closed with a plastic plug or stainless steel rondelles can be inserted into the open jacket ends and welded therein.
  • the starting material for the production of a transverse force mandrel according to the method according to the invention is, on the one hand, a core 1 consisting of a steel rod and, on the other hand, a jacket 2 consisting of a stainless steel tube.
  • the core 1 can be made of a conventional structural steel. While the steps a) to c) to be described below mostly take place in appropriately equipped steelworks, the following steps d) to h) can be carried out in any company that manufactures technical construction products. In steps a) to c) the semi-finished product is manufactured, so to speak, while the subsequent steps d) to h) relate to the order-specific assembly.
  • a first step a the aforementioned jacket made of stainless steel pipe is drawn onto a correspondingly dimensioned steel rod 1 according to known technology, so that the steel rod then forms the core 1.
  • the core 1 itself acts as a calibration mandrel, which means that the desired approximate freedom of play is guaranteed.
  • the outer dimensions of the stainless steel jacket can be calibrated simultaneously or directly afterwards.
  • step b) a corresponding calibration tool is shown purely schematically.
  • the core 1 is drawn into the jacket 2 using commercially available rod material of several meters in length.
  • the extremely precise and at least approximately backlash-free pulling in of the steel core is carried out by adding an oil that is particularly suitable for this purpose.
  • the semifinished product thus obtained, shown in c) is delivered to a plant for the manufacture of technical construction products.
  • the receiver operation of the semi-finished product cuts the rod material 3 into corresponding rod sections 4 from step d). This is symbolically represented by the saw blade 30.
  • the core 1 is now pressed out of the casing 2 by a distance a. This protruding section 5 is then cut off flush with the jacket end, as shown in f). Thanks to the oil used in the drawing-in, the core 1 can be pressed out of the jacket 2 by means of corresponding hydraulic machines without any remaining deformations being found.
  • FIG. 2 shows a transverse force mandrel 10 produced according to the invention. While one half of the transverse force mandrel 10 is closed with a plastic plug 7, the other end is closed with a stainless steel rondelle inserted into the open jacket end 6.
  • Plastic plugs 7 are very suitable for certain applications, particularly in the interior of the building. The required tightness is achieved by appropriate sealing lips 8 on the plastic plug 7.
  • Insert dimensionally accurate Rondelle 9 made of stainless steel and finally weld them to the jacket 2.
  • the welding can be designed only point by point or as a circumferential weld seam 11. The somewhat increased strength does not result so much from a load-bearing effect of the rondelle 9, but rather from the absolutely fixed core 1 in the jacket 2. This results in a high-strength sandwich construction.
  • the strength of such a sandwich construction is higher than that of a one-piece shear force mandrel made from a solid bar. Accordingly, shear force mandrels with a smaller diameter can be used for dimensioning. This is not only a financial advantage, but also leads to a reduction in the size of the bearing sleeve of the transverse force mandrel and consequently to an increased concrete coverage of the bearing sleeve, which again has structural advantages.
  • the wall thickness of the jacket 2 in a certain relation to the diameter of the steel core 1. In general, however, it can be traced back to surprisingly small wall thicknesses of the jacket. Usual dimensions of the wall thickness of the stainless steel tube from which the jacket 2 is made are between 0.4 and 5.0 mm. The relatively small wall thickness of the casing 2 made of stainless steel naturally brings financial advantages again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forging (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Moulding By Coating Moulds (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP96810578A 1995-09-29 1996-09-03 Procédé de fabrication d'un boulon de force transversale et boulon fabriqué par ce procédé Expired - Lifetime EP0765967B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
CH2752/95 1995-09-29
CH275295 1995-09-29
AU15026/97A AU729030B2 (en) 1997-02-28 1997-02-28 Method of producing a transverse force bolt and transverse force bolt produced by this method
JP06090097A JP4017700B2 (ja) 1995-09-29 1997-03-14 構成要素間連結部材の製造方法及びこの方法で製造した構成要素間連結部材
CA002200905A CA2200905A1 (fr) 1995-09-29 1997-03-25 Procede pour la fabrication d'un boulon de force transversale et boulon de force transversale ainsi produit
CN97104929A CN1194341A (zh) 1995-09-29 1997-03-26 横向受力螺栓及其制造方法
US08/826,140 US5852863A (en) 1995-09-29 1997-03-27 Method of producing a transverse force bolt and transverse force bolt produced by this method

Publications (2)

Publication Number Publication Date
EP0765967A1 true EP0765967A1 (fr) 1997-04-02
EP0765967B1 EP0765967B1 (fr) 1998-07-08

Family

ID=27542560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810578A Expired - Lifetime EP0765967B1 (fr) 1995-09-29 1996-09-03 Procédé de fabrication d'un boulon de force transversale et boulon fabriqué par ce procédé

Country Status (7)

Country Link
US (1) US5852863A (fr)
EP (1) EP0765967B1 (fr)
JP (1) JP4017700B2 (fr)
CN (1) CN1194341A (fr)
AT (1) ATE168153T1 (fr)
CA (1) CA2200905A1 (fr)
DE (1) DE59600321D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999025934A1 (fr) 1997-11-17 1999-05-27 Pecon Ag Support de mandrin a force de cisaillement
US6517277B2 (en) * 1998-09-22 2003-02-11 Kansas State University Research Foundation Expansion and crack joint coupler
CN102941447A (zh) * 2012-11-22 2013-02-27 河南航天精工制造有限公司 一种螺栓的制造加工工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6794688B2 (ja) * 2016-07-14 2020-12-02 日本製鉄株式会社 壁パネルの連結構造

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB836125A (en) * 1955-05-31 1960-06-01 Vernon Russell Powell Apparatus and method for forming close tolerance tubing and articles therefrom
EP0119652A2 (fr) * 1983-03-16 1984-09-26 Heinz Witschi Elément de liaison et de répartition de pression pour éléments en béton

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH666932A5 (de) * 1987-02-19 1988-08-31 Bau Box Ewiag Zug- oder druckstab zur verbindung zweier betonteile.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB836125A (en) * 1955-05-31 1960-06-01 Vernon Russell Powell Apparatus and method for forming close tolerance tubing and articles therefrom
EP0119652A2 (fr) * 1983-03-16 1984-09-26 Heinz Witschi Elément de liaison et de répartition de pression pour éléments en béton

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999025934A1 (fr) 1997-11-17 1999-05-27 Pecon Ag Support de mandrin a force de cisaillement
US6471441B1 (en) 1997-11-17 2002-10-29 Pecon Ag Shear-load chuck holder
US6517277B2 (en) * 1998-09-22 2003-02-11 Kansas State University Research Foundation Expansion and crack joint coupler
CN102941447A (zh) * 2012-11-22 2013-02-27 河南航天精工制造有限公司 一种螺栓的制造加工工艺
CN102941447B (zh) * 2012-11-22 2015-09-16 河南航天精工制造有限公司 一种螺栓的制造加工工艺

Also Published As

Publication number Publication date
CN1194341A (zh) 1998-09-30
EP0765967B1 (fr) 1998-07-08
US5852863A (en) 1998-12-29
CA2200905A1 (fr) 1998-09-25
DE59600321D1 (de) 1998-08-13
JPH10263742A (ja) 1998-10-06
JP4017700B2 (ja) 2007-12-05
ATE168153T1 (de) 1998-07-15

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