EP0943736A2 - Lager - Google Patents

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Publication number
EP0943736A2
EP0943736A2 EP99200622A EP99200622A EP0943736A2 EP 0943736 A2 EP0943736 A2 EP 0943736A2 EP 99200622 A EP99200622 A EP 99200622A EP 99200622 A EP99200622 A EP 99200622A EP 0943736 A2 EP0943736 A2 EP 0943736A2
Authority
EP
European Patent Office
Prior art keywords
saddle
friction member
bearing according
section
sheet section
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Withdrawn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
EP99200622A
Other languages
English (en)
French (fr)
Other versions
EP0943736A3 (de
Inventor
Johan Sebastiaan Leendertz
Govert Willem Heine
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.)
Bouwdienst Rijkswaterstaat
Original Assignee
Bouwdienst Rijkswaterstaat
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 Bouwdienst Rijkswaterstaat filed Critical Bouwdienst Rijkswaterstaat
Publication of EP0943736A2 publication Critical patent/EP0943736A2/de
Publication of EP0943736A3 publication Critical patent/EP0943736A3/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/04—Bearings; Hinges
    • E01D19/042—Mechanical bearings
    • E01D19/046—Spherical bearings
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/04—Bearings; Hinges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/04—Bearings; Hinges
    • E01D19/042—Mechanical bearings
    • E01D19/047—Pot bearings

Definitions

  • the invention relates to a bearing for a bridge, comprising a bottom saddle and a top saddle, between which there is a friction member which has a relatively low coefficient of friction compared to the saddles.
  • Bearings of this nature are incorporated in the supports of the bridge at the location of the piers, abutments and the like.
  • the top saddle which is attached to the superstructure of the bridge, can be displaced over a certain distance with respect to the bottom saddle, which is attached to the substructure, such as a pier, which displacements are made possible by the friction member.
  • Bearings of this nature allow the superstructure of the bridge to adapt to the various load conditions brought about by traffic load and temperature changes.
  • a further advantage is that the substructure is subjected to reduced loads and can therefore be of more lightweight design.
  • the object of the invention is to provide a bearing which is more satisfactory and, in particular, has a longer service life.
  • This object is achieved by the fact that the friction member comprises a central sheet section and an edge section which is situated on the periphery of the said sheet section.
  • an intermediate saddle may be situated between the bottom saddle and the top saddle, which intermediate saddle interacts with the bottom saddle by means of a bottom friction member and interacts with the top saddle by means of a top friction member.
  • the friction member can now be designed in such a manner that, on the one hand, the desired low coefficient of friction can be maintained and, on the other hand, it is possible to avoid the risk of damage caused by permanent deformation due to creep. Consequently, the total service life of the bearing can be considerably prolonged.
  • the bearing is preferably designed in such a way that the edge section extends around the entire periphery of the sheet section.
  • the edge section comprises a material which has a higher resistance to deformation and/or creep caused by compressive loads than the material of the sheet section, in such a manner that the said sheet section is supported by the said edge section so as to prevent deformation and/or flow.
  • the sheet section which comprises a material with a low coefficient of friction, is now enclosed in the edge section.
  • the said edge section provides enough support for the sheet section for the latter to be prevented from being plastically deformed (creep).
  • the surfaces of the sheet section and the edge section lie in a common plane.
  • the bearing forces are exerted directly on both surfaces of the friction member, providing simple, reliable support.
  • the surface of the sheet section is recessed with respect to the surface of the edge section.
  • a medium such as oil can be held in the space defined between the recessed surface of the sheet section and the opposite surface of the saddle.
  • a support of this nature provides a very low frictional resistance.
  • At least one of the surfaces of the sheet section may contain hollows in which a lubricant can be held.
  • the sheet section comprises polytetrafluoroethylene, while the edge section comprises ultrahigh molecular weight polyethylene (UHMWPE).
  • UHMWPE ultrahigh molecular weight polyethylene
  • the friction body may have all kinds of shapes, for example a planar shape or the shape of a segment of a sphere.
  • Figure 1 shows a first embodiment of the bearing according to the invention.
  • Figure 2 shows a second embodiment
  • Figures 3 and 4 show a third embodiment.
  • Figure 5 shows a fourth embodiment.
  • the bearing (sphere-segment bearing) illustrated in Figures 1 and 2 comprises a bottom saddle 8, a top saddle 9 and an intermediate saddle 10.
  • Bottom saddle 8 and top saddle 9 are each provided with attachment means (not shown), by means of which they can be attached to the substructure, such as a pier, and the superstructure, respectively, of a bridge.
  • the bottom saddle 8, top saddle 9 and intermediate saddle 10 can be displaced slightly with respect to one another.
  • the friction member 11 is arranged between the bottom saddle 8 and the intermediate saddle 10 and the friction member 3 is arranged between the intermediate saddle 10 and the top saddle 9.
  • the friction member 3 is secured between the projecting rim 4 of the bottom saddle 1.
  • the top saddle 2 rests displaceably on the top surface of a friction member 3.
  • the friction member 3 comprises a central sheet section 5, as well as an edge section 6.
  • the central sheet section may comprise polytetrafluoroethylene.
  • the polytetrafluoroethylene material is now stabilized by the annular edge section 6.
  • This annular edge section 6 comprises material which has a greater resistance to creep and may, for example, comprise UHMWPE. Although this material has a slightly higher coefficient of friction, because most of the surface of the friction member 3 comprises the surface of the central sheet section 5, which is made from polytetrafluoroethylene, the total frictional resistance is sufficiently low.
  • Wells 7, in which a lubricant may be held may be provided on that side of the central sheet section 5 which faces towards the top saddle 2.
  • a friction member 11 which is in the form of a segment of a sphere, is arranged between the intermediate saddle 10 and the bottom saddle 9.
  • This friction member 11 comprises a central sheet member 12 which is in the form of a segment of a sphere and is made from polytetrafluoroethylene, and a ring made from UHMWPE.
  • the friction member 11 is of similar design to friction member 3.
  • the embodiment shown in Figure 2 relates to a so-called neoprene pot bearing.
  • This bearing too comprises a bottom saddle 14, a top saddle 15 and an intermediate saddle 16.
  • the bottom saddle 14 and the top saddle 15 are supported with respect to one another by neoprene sheet 17 and neoprene ring 18, in such a manner that the top saddle 15 can tilt slightly with respect to the bottom saddle 14.
  • FIG. 3 and 4 relates to a tension-compression bearing.
  • This bearing comprises a bottom saddle 19 and a top saddle 20.
  • the bottom saddle comprises two flanges 21, held together by shaft 22 around which the bronze block 23 is arranged.
  • the bronze block itself is arranged in the space 24 which has been cut out of the top saddle 20.
  • the top saddle is supported with respect to the bottom saddle by means of two friction members 25, composed of a central sheet section and a ring section arranged around it.
  • a tension-compression bearing can be used to absorb upwardly and downwardly directed vertical forces, such as those which are found, for example, in cable-stayed bridges. Also, the tension-compression bearing allows movements such as those illustrated by the arrows in Figures 3 and 4.
  • a friction member 26 which comprises a central sheet section 27 which has a slightly smaller thickness than the ring section 28, is used between the bottom saddle 1 and the top saddle 2.
  • a space which is filled with oil in order to reduce the frictional resistance still further remains between the top saddle 2 and the central sheet section 27.
  • the ring section 28 provides a seal with respect to the top saddle 2 which is such that the oil can be held enclosed, resulting in a hydrostatic support.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Sliding-Contact Bearings (AREA)
EP99200622A 1998-03-17 1999-03-04 Lager Withdrawn EP0943736A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1008614 1998-03-17
NL1008614A NL1008614C1 (nl) 1998-03-17 1998-03-17 Oplegging.

Publications (2)

Publication Number Publication Date
EP0943736A2 true EP0943736A2 (de) 1999-09-22
EP0943736A3 EP0943736A3 (de) 2000-05-17

Family

ID=19766755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99200622A Withdrawn EP0943736A3 (de) 1998-03-17 1999-03-04 Lager

Country Status (2)

Country Link
EP (1) EP0943736A3 (de)
NL (1) NL1008614C1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003021043A1 (fr) * 2001-09-04 2003-03-13 Shanghai Meglev Transportation Delevopment Co., Ltd. Palier reglable
WO2003029563A1 (en) * 2001-09-28 2003-04-10 Shanghai Maglev Transportation Development Co., Ltd A side to side adjustment bearing
WO2003029562A1 (fr) * 2001-09-28 2003-04-10 Shanghai Maglev Transportation Development Co., Ltd Support coulissant unilateral pouvant etre fixe et son procede d'utilisation
WO2004009908A1 (de) * 2002-07-19 2004-01-29 Maurer Söhne Gmbh & Co. Kg Gleitlager für das bauwesen und werkstoff hierfür
WO2006042566A1 (de) * 2004-10-19 2006-04-27 Maurer Söhne Gmbh & Co. Kg Lager und verwendung von uhmwpe in lagern im bauwesen
CN101210413B (zh) * 2006-12-29 2011-02-16 上海磁浮交通工程技术研究中心 一种轨道梁用抗拉可调连接机构
WO2011026477A1 (de) * 2009-09-03 2011-03-10 Anil Anwikar Lager für ein bauwerk
CN102212988A (zh) * 2011-05-18 2011-10-12 江苏万宝桥梁构件有限公司 桥梁支座用的超耐磨橡胶滑块
CN102747679A (zh) * 2012-06-19 2012-10-24 同济大学 连续梁桥拉索减震支座经济布置方法
CN103741593A (zh) * 2014-01-13 2014-04-23 成都市大通路桥机械有限公司 一种转动摩擦阻尼减震支座装置
EP2899334A1 (de) * 2014-01-28 2015-07-29 Soletanche Freyssinet Auflager mit kontrollierter Steifigkeit
EP2989253B1 (de) 2013-04-22 2017-05-10 Maurer Söhne Engineering GmbH & Co. KG Bauwerkslager
CN107881904A (zh) * 2017-11-17 2018-04-06 衡水中铁建工程橡胶有限责任公司 一种新型桥梁支座

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100357523C (zh) * 2005-01-26 2007-12-26 徐国彬 转动位移式索鞍
CN105256717B (zh) * 2015-11-13 2016-11-30 天津市市政工程设计研究院 轨道交通用超高水平力高耐久性球型支座
CN106245781B (zh) * 2016-09-28 2018-11-09 清华大学 摩擦力可调型摩擦摆滑移支座

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3728752A (en) * 1970-02-20 1973-04-24 Gutehoffnungshuette Sterkrade Bearings for bridges and similar structures
DE2461325B1 (de) * 1974-12-24 1976-04-01 Kober Ag Gleitlager fuer Bruecken oder aehnliche Bauwerke
US4320549A (en) * 1978-07-04 1982-03-23 Glacier Gmbh-Deva Werke Rocker-sliding bearing assembly and a method of lining the assembly
WO1997034052A1 (en) * 1996-03-12 1997-09-18 Acm Bearings Limited Improvements in and relating to bearings

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3728752A (en) * 1970-02-20 1973-04-24 Gutehoffnungshuette Sterkrade Bearings for bridges and similar structures
DE2461325B1 (de) * 1974-12-24 1976-04-01 Kober Ag Gleitlager fuer Bruecken oder aehnliche Bauwerke
US4320549A (en) * 1978-07-04 1982-03-23 Glacier Gmbh-Deva Werke Rocker-sliding bearing assembly and a method of lining the assembly
WO1997034052A1 (en) * 1996-03-12 1997-09-18 Acm Bearings Limited Improvements in and relating to bearings

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7207721B2 (en) 2001-09-04 2007-04-24 Shanghai Maglev Transportation Development Co., Ltd. Adjustable bearing
WO2003021043A1 (fr) * 2001-09-04 2003-03-13 Shanghai Meglev Transportation Delevopment Co., Ltd. Palier reglable
WO2003029563A1 (en) * 2001-09-28 2003-04-10 Shanghai Maglev Transportation Development Co., Ltd A side to side adjustment bearing
WO2003029562A1 (fr) * 2001-09-28 2003-04-10 Shanghai Maglev Transportation Development Co., Ltd Support coulissant unilateral pouvant etre fixe et son procede d'utilisation
HRP20050066B1 (en) * 2002-07-19 2012-02-29 Maurer S�hne GmbH & Co. KG Sliding bearings for civil engireering and material therefor
WO2004009908A1 (de) * 2002-07-19 2004-01-29 Maurer Söhne Gmbh & Co. Kg Gleitlager für das bauwesen und werkstoff hierfür
WO2004009907A1 (de) * 2002-07-19 2004-01-29 Maurer Söhne Gmbh & Co. Kg Gleitlager für das bauwesen und werkstoff hierfür
WO2006042566A1 (de) * 2004-10-19 2006-04-27 Maurer Söhne Gmbh & Co. Kg Lager und verwendung von uhmwpe in lagern im bauwesen
WO2006042571A1 (de) * 2004-10-19 2006-04-27 Maurer Söhne Gmbh & Co. Kg Werkstoff, verfahren zur herstellung einer bauteilkomponente, lager und verwendung von werkstoffen in lagern im bauwesen
CN101210413B (zh) * 2006-12-29 2011-02-16 上海磁浮交通工程技术研究中心 一种轨道梁用抗拉可调连接机构
WO2011026477A1 (de) * 2009-09-03 2011-03-10 Anil Anwikar Lager für ein bauwerk
CN102212988A (zh) * 2011-05-18 2011-10-12 江苏万宝桥梁构件有限公司 桥梁支座用的超耐磨橡胶滑块
CN102747679A (zh) * 2012-06-19 2012-10-24 同济大学 连续梁桥拉索减震支座经济布置方法
EP2989253B1 (de) 2013-04-22 2017-05-10 Maurer Söhne Engineering GmbH & Co. KG Bauwerkslager
CN103741593A (zh) * 2014-01-13 2014-04-23 成都市大通路桥机械有限公司 一种转动摩擦阻尼减震支座装置
CN103741593B (zh) * 2014-01-13 2015-12-30 成都市大通路桥机械有限公司 一种转动摩擦阻尼减震支座装置
EP2899334A1 (de) * 2014-01-28 2015-07-29 Soletanche Freyssinet Auflager mit kontrollierter Steifigkeit
WO2015114024A1 (fr) * 2014-01-28 2015-08-06 Soletanche Freyssinet Appareil d'appui à raideur contrôlée
CN107881904A (zh) * 2017-11-17 2018-04-06 衡水中铁建工程橡胶有限责任公司 一种新型桥梁支座

Also Published As

Publication number Publication date
NL1008614C1 (nl) 1999-09-20
EP0943736A3 (de) 2000-05-17

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