EP0765967B1 - Verfahren zur Herstellung eines Querkraftdornes und Querkraftdorn hergestellt nach diesem Verfahren - Google Patents
Verfahren zur Herstellung eines Querkraftdornes und Querkraftdorn hergestellt nach diesem Verfahren Download PDFInfo
- Publication number
- EP0765967B1 EP0765967B1 EP96810578A EP96810578A EP0765967B1 EP 0765967 B1 EP0765967 B1 EP 0765967B1 EP 96810578 A EP96810578 A EP 96810578A EP 96810578 A EP96810578 A EP 96810578A EP 0765967 B1 EP0765967 B1 EP 0765967B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core
- casing
- stainless steel
- steel
- jacket
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 22
- 239000010935 stainless steel Substances 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
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 Production of a shear force mandrel consisting of a Steel core and a stainless steel jacket, as well as a Shear force mandrel manufactured using this process.
- Shear force pins are used for horizontal connection and Power transmission between two components. Especially they are used in the expansion joint area of two neighboring Floor slabs and for laying stair pedestals with subsequent components.
- the shear force mandrels store or on both sides of the expansion joint in corresponding bearing sleeves, as shown for example in EP-A-0'119 652. While the horizontal stretching movement must be allowed, the relative vertical movement can be prevented.
- shear force mandrels are inevitable in the expansion joint area Subject to environmental conditions 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 Chrome-nickel-molybdenum steel. This is extraordinary expensive and still capable in certain areas of application not to meet the security requirements. According to Recent discoveries tend to be made entirely of stainless steel manufactured rods for hydrogen embrittlement, which the Strength of the material reduced.
- EP-A-0'119 652 shows a solution in which the mandrel consists of a core made of structural steel and a jacket tube made of stainless steel, which is pressed firmly onto the core.
- the connection between two horizontal components, which are made by means of the shear force spikes is made, movements in the vertical direction practically prevent relative to each other.
- optimal shear force mandrels of the latter type Condition not enough to meet.
- the insertion a steel core in a stainless steel jacket a certain game. It is not for economic reasons possible, all components of a shear force connection to manufacture from calibrated components. And even then a play-free insertion of a core into a jacket technical impossible.
- the outside dimension of the core and the The inside dimension of the jacket has a tolerance field.
- points the outer dimensions of the jacket open and close a tolerance zone Such a tolerance zone also shows the inner dimension of the bearing sleeve in which the transverse force mandrel rests.
- all of these tolerances can add up.
- the so obtained Game results in a certain freedom of movement vertical direction between two horizontal components, which are connected to one another by means of transverse force mandrel connections are. The vibrations occurring in the structure therefore lead to vertical movements that lead to corresponding crack formation in the Guide the area of the transverse force mandrel connections.
- Shear force mandrel either with a plastic plug can be closed or you can in the open jacket ends Insert and insert stainless steel rondelles weld.
- 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 from a conventional structural steel. While the steps a) to c) to be described below mostly in appropriately equipped steelworks can take place subsequent steps d) to h) in each company that manufactures technical construction products. In the Steps a) to c) the semi-finished product is manufactured, so to speak, while the subsequent steps d) to h) die order-specific packaging.
- a first step a the mentioned jacket is made stainless steel pipe according to known technology on one appropriately dimensioned steel rod 1, so that the steel rod then forms the core 1.
- the core 1 itself acts as a calibration mandrel, whereby the desired approximate freedom of play is guaranteed.
- step b) is purely schematic with 20 a corresponding calibration tool is shown.
- the core 1 is drawn into the jacket 2 with commercially available bar material of several meters in length.
- the extraordinarily accurate and at least approximately The steel core is pulled in without play using the addition a particularly suitable oil for this.
- the so obtained, in c) Semi-finished product is sent to a plant for the Manufacturing of technical building products supplied.
- the receiver operation of the semi-finished product is long Bar material 3 in corresponding bar sections 4 from step d). This is symbolically represented by the Saw blade 30.
- the core 1 As indicated schematically under e), is now the core 1 by a distance a from the jacket 2 pressed out. This section 5 above will be followed severed flush with the end of the jacket, as shown by f). thanks to the core 1 can be used by pulling in the oil corresponding hydraulic machines from the jacket 2 press out without any remaining deformation were found.
- FIG. 2 shows one manufactured according to the invention Shear force mandrel 10 shown. While half of the Shear force mandrel 10 closed with a plastic plug 7 is the other end with one in the open jacket end 6 inlaid stainless steel rondelle. For certain applications, especially in the interior of buildings plastic plug 7 very well. The required Tightness is achieved by appropriate sealing lips 8 on Plastic plug 7. For applications with particularly high Load capacity is one in the open jacket end 6 if possible insert dimensionally accurate Rondelle 9 made of stainless steel and this finally weld with the jacket 2. Depending on The desired tightness can only be welded at certain points or be designed as a circumferential weld seam 11. The here somewhat increased strength does not result so much through a load-bearing effect of the Rondelle 9, but rather by the absolutely fixed core 1 in the jacket 2. This results a high-strength sandwich construction.
- the wall thickness of the jacket 2 becomes one certain relation to the diameter of the steel core 1 choose. In general, however, you can use surprisingly small wall thicknesses of the cloak can be decreased. Usual dimensions of the Wall thickness of the stainless steel tube from which the jacket 2 is between 0.4 and 5.0 mm. The relative brings small wall thickness of the casing 2 made of stainless steel of course again financial advantages.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forging (AREA)
- Joining Of Building Structures In Genera (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Moulding By Coating Moulds (AREA)
Description
- Figur 1 -
- die verschiedenen Schritte der Herstellung von a) bis h) und
- Figur 2 -
- einen fertigen nach oben gezeigtem Verfahren hergestellten Querkraftdorn mit zwei verschiedenen Ausfertigungen des Endverschlusses.
Claims (7)
- Verfahren zur Herstellung eines Querkraftdornes bestehend aus einem Stahlkern (1) und einem Mantel (2) aus rostfreiem Stahl, bestehend aus folgenden Schritten:massgenaues, spielfreies Einziehen eines Stahlkerns (1) bestehend aus einem Stahlstab aus nichtrostfreiem Stahl in einem als Mantel (2) dienenden Rohr aus rostfreiem Stahl;Ablängung des so gebildeten Stabes in den gewünschten Querkraftdorngrössen; gekennzeichnet durch :teilweises Ausstossen des Kernes aus dem Mantel und Abtrennen des ausgestossenen Teiles des Kernes;Rückstossen des Kernes um die halbe Distanz des ausgestossenen und abgetrennten Teiles;Verschliessen der offenen Mantelenden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die offenen Mantelenden (6) mit einem Kunststoffpfropfen (7) verschlossen werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die offenen Mantelenden (6) mit in die offenen Enden hineingeschobenen Rondellen (9) aus rostfreiem Stahl verschlossen und verschweisst werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass während des Einziehens das Aussenmass des Mantels (2) kalibriert wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass vor dem teilweisen Ausstossen des Kernes aus dem Mantel die abgelangten Stäbe kurzzeitig von aussen erwärmt werden.
- Querkraftdorn hergestellt nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Spielfrei eingezogene Kern (1) kürzer als der Mantel (2) ist, und die offenen Mantelenden (6) mit einem Kunststoffpfropfen (7) verschlossen sind.
- Querkraftdorn nach Anspruch 6, dadurch gekennzeichnet, dass die Dicke des Mantels (2) aus rostfreiem Stahl zwischen 0,4 und 5,0 mm beträgt.
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 (en) | 1995-09-29 | 1997-03-25 | Method of producing a transverse force bolt and transverse force bolt produced by this method |
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 EP0765967A1 (de) | 1997-04-02 |
EP0765967B1 true EP0765967B1 (de) | 1998-07-08 |
Family
ID=27542560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96810578A Expired - Lifetime EP0765967B1 (de) | 1995-09-29 | 1996-09-03 | Verfahren zur Herstellung eines Querkraftdornes und Querkraftdorn hergestellt nach diesem Verfahren |
Country Status (7)
Country | Link |
---|---|
US (1) | US5852863A (de) |
EP (1) | EP0765967B1 (de) |
JP (1) | JP4017700B2 (de) |
CN (1) | CN1194341A (de) |
AT (1) | ATE168153T1 (de) |
CA (1) | CA2200905A1 (de) |
DE (1) | DE59600321D1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH692991A5 (de) | 1997-11-17 | 2003-01-15 | Pecon Ag | Querkraftdornlagerung. |
US6517277B2 (en) * | 1998-09-22 | 2003-02-11 | Kansas State University Research Foundation | Expansion and crack joint coupler |
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 |
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 |
Family Cites Families (3)
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 |
DE3460289D1 (en) * | 1983-03-16 | 1986-08-21 | Witschi H | Connection and stress repartition element for concrete parts |
CH666932A5 (de) * | 1987-02-19 | 1988-08-31 | Bau Box Ewiag | Zug- oder druckstab zur verbindung zweier betonteile. |
-
1996
- 1996-09-03 AT AT96810578T patent/ATE168153T1/de not_active IP Right Cessation
- 1996-09-03 DE DE59600321T patent/DE59600321D1/de not_active Expired - Fee Related
- 1996-09-03 EP EP96810578A patent/EP0765967B1/de not_active Expired - Lifetime
-
1997
- 1997-03-14 JP JP06090097A patent/JP4017700B2/ja not_active Expired - Lifetime
- 1997-03-25 CA CA002200905A patent/CA2200905A1/en not_active Abandoned
- 1997-03-26 CN CN97104929A patent/CN1194341A/zh active Pending
- 1997-03-27 US US08/826,140 patent/US5852863A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE168153T1 (de) | 1998-07-15 |
US5852863A (en) | 1998-12-29 |
JP4017700B2 (ja) | 2007-12-05 |
JPH10263742A (ja) | 1998-10-06 |
EP0765967A1 (de) | 1997-04-02 |
CA2200905A1 (en) | 1998-09-25 |
CN1194341A (zh) | 1998-09-30 |
DE59600321D1 (de) | 1998-08-13 |
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