EP0126633A2 - Appui pour constructions - Google Patents

Appui pour constructions Download PDF

Info

Publication number
EP0126633A2
EP0126633A2 EP19840303374 EP84303374A EP0126633A2 EP 0126633 A2 EP0126633 A2 EP 0126633A2 EP 19840303374 EP19840303374 EP 19840303374 EP 84303374 A EP84303374 A EP 84303374A EP 0126633 A2 EP0126633 A2 EP 0126633A2
Authority
EP
European Patent Office
Prior art keywords
bearing
load
structural
ptfe
cylinder
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Withdrawn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
EP19840303374
Other languages
German (de)
English (en)
Inventor
William Ernest Reeve
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.)
Dixon International Ltd
Original Assignee
Dixon International Ltd
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 Dixon International Ltd filed Critical Dixon International Ltd
Publication of EP0126633A2 publication Critical patent/EP0126633A2/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/36—Bearings or like supports allowing movement

Definitions

  • the present invention relates to structural bearings.
  • the invention relates to structural bearings comprising a lower load-bearing base part and an upper load-bearing part rotatable about a horizontal axis relative to the lower part so that a structural member supported by the bearing can also rotate about the horizontal axis.
  • Known structural bearings comprise a forged steel base part from which a concavity is machined out.
  • the concavity is in the shape of the surface of part of a first sphere and is lined with a layer of polytetrafluorethylene (ptfe), the upper surface of the ptfe being also concave and in the shape of part of the surface of a second, slightly smaller sphere.
  • the bearing also comprises an upper part having a portion having a convex surface of smooth metal, such as stainless steel, which fits into the concavity of the first base part.
  • the surface of this portion is in the shape of the surface of the aforementioned second sphere and thus the portion is a close fit against the ptfe lining of the concavity of the base portion and, by sliding of the convex surface of the upper, part on the ptfe lining of the base part, the upper part can rotate, within limits, about any horizontal axis passing through the centre of the second sphere.
  • the upper part of the bearing is intended to support a structural member which can consequently rotate, together with the upper part, about any horizontal axis passing through the centre of the second sphere.
  • the present invention is based partly on the realization of the fact, which we believe has not hitherto been appreciated, that in the known bearings described above, the upper part and any structural member supported thereby, can rotate about a vertical axis but such rotation is, at least in most applications of the bearings, not required.
  • a structural bearing comprising a first load -bearing part or element having a concave surface and a second load-bearing part having a portion with a convex surface, the concave surface being in the shape of a segment of a cylinder and the convex surface also being in the shape of a segment of said cylinder, one said surfaces being formed by a low-friction polymeric material, such as ptfe, and the other said surface being formed by metal, such as stainless steel, said portion of the second part being located in the first part so that the concave and convex surfaces are in sliding contact one with the other and the second part can thus rotate relative to the first part, at least within limits, about the axis of said cylinder.
  • the concave surface is formed by low friction polymeric material and the convex surface is formed by metal.
  • the surface of low-friction polymeric material may be provided by a sheet of the low-friction polymeric material adhered to a portion of one of said parts.
  • the sheet may be adhered to a surface of a metal portion of the first part, the surface having the shape of a segment of a cylinder. It will thus be appreciated that the low-friction polymeric surface may be provided without expensive machining of the polymeric material and wastage of the polymeric material, which is itself expensive.
  • machining of either part to provide surfaces in the shape of surfaces of cylinders is relatively inexpensive as compared with machining to provide surfaces in the shapes of parts of surfaces of spheres.
  • the bearing according to the invention preferably comprises means to prevent or restrict relative horizontal movement of the first and second parts in a direction parallel to the axis of rotation i.e. the axis of the cylinder referred to.
  • the bearing according to the invention may further comprise a further load-bearing member which has a plane slide surface slidingly engaged with a plane slide surface of one of said first and second parts. This enables the bearing to accommodate horizontal translational movement as well as rotational movement about a horizontal axis of the structural member supported by the bearing.
  • the first bearing 1 comprises a base member 2, insert members 3, rotary members 4 and an upper member 5.
  • the base member 2 ( Figure 6A, B and C) is formed with a pair of rectangular recesses 2' in which the insert members ( Figures 4A, B and C) are located.
  • the upper surface of each member 3 is in the shape of a segment of a circular cylinder and a sheet of ptfe 6 is adhered thereto, The upper surface of the ptfe sheet thus is in the shape of a segment of a second circular cylinder of slightly smaller radius than the first-mentioned cylinder.
  • Each rotary member 4 ( Figure 5A, B and C) has a portion 4g, the lower surface of which is of stainless steel, is smooth and is in the shape of a segment of the aforementioned second cylinder.
  • Each rotary member 4 has its portion 4a located in a corresponding one of the recess members 3 so that its lower surface can slide on the ptfe layer 6.
  • Each rotary member 4 also has a pair of integral spigots 4b located in corresponding recesses 5' in the underside of the upper member 5.
  • the upper member 5 ( Figures 8A,B and C) is in the form of a plate with depending end portions 5a disposed at either end of the base member 2.
  • the base member 2 and rotary members 4 are made entirely of stainless steel in order to provide the aforementioned stainless steel surfaces.
  • these members could be made from mild steel with stainless steel layers or coatings at the appropriate positions to provide the stainless steel surfaces.
  • the base member 2 In use of the first bearing l, the base member 2 is disposed on a supporting structural part and a supported structural part is disposed on the upper member 5. The load of the supported part is thus transferred through the upper member 5, the rotary member 4, the insert member 3 and the base member 2 to the supporting part.
  • the supported part may rotate about a horizontal axis parallel to the lengthwise direction of the bearing.
  • the rotary parts 4 rotate together with the upper member 5 and the supported part, the lower stainless steel surfaces of the parts 4 sliding on the ptfe layer 6.
  • the bearing provides neither for rotational movement of the supported part about a horizontal axis transverse to the lengthwise direction of the bearing nor for rotational movement of the supported part about a vertical axis.
  • the second structural bearing comprises a base member 2, insert members 3, rotary members 4 and a member 5 constructed and arranged in like manner to the corresponding members in the first bearing.
  • the bearing further comprises a slide member 20 disposed on the member 5.
  • the member 20 has a shallow recess 20' ( Figures 12A, B and C) on its underside in which is fixed a sheet of ptfe.
  • the member 5 has a shallow recess on its upperside in which is fixed a smooth surfaced stainless steel sheet.
  • the member 20 can accordingly slide horizontally on the member 5 in both the lengthwise direction of the bearing and transverse to the lengthwise direction of the bearing.
  • the supported part In use of the bearing the supported part is disposed on the member 20.
  • the supported part can thus not only rotate as described above with reference to the first bearing but can, together with the member 20, undergo horizontal translational movement in any direction, such as indicated by arrows in Figure 7.
  • the third bearing is constructed and arranged in like manner to the second bearing except that the member 5 ( Figures 13A, B and C) has no depending end portions.
  • the slide member 20 absorbs horizontal translation movement in all directions of the supported part, there is substantially no force applied to the member 5 and the rotary members 4 in the lengthwise direction of the bearing and hence no need to provide depending end portions on the member 5 to resist such force.
  • the member 5 has a shallow recess 5" in the upper surface in which is fixed a ptfe sheet 30.
  • the member 20 has a shallow recess 20' in the lower surface in which is fixed a stainless steel sheet 31.
  • the ptfe sheet 30 and the stainless steel sheet 31 thus provide the sliding contact between the members 4 and 20.
  • the ptfe sheet 30 and stainless steel sheet 31 may be reversed in position if desired as indicated by the reference numerals in brackets in Figure 10.
  • the fourth bearing is generally similar in construction to the secured bearing except as described below.
  • the member 5 ( Figures 17A, B and C) is formed with three elongate upstanding spigots 40 and the slide member 20 ( Figures 18A, B and C) is formed with three elongate slots 41 opening to its lower surface, the spigots being located in the slots and the slots being longer than the spigots. Because of the presence of the spigots 40 it is necessary to divide the recesses accommodating the ptfe and stainless steel layers 30 and 31 into a plurality of smaller recesses and similarly to divide the ptfe and stainless steel sheets into a plurality of smaller sheets to fit into the recesses.
  • the sides of the spigots 40 are faced with sheets of ptfe and the sides of the slots 41 are formed of smooth-surfaced stainless steel or, alternatively the sides of the spigots 40 are formed of smooth-surfaced stainless steel and the sides of the slots are faced with sheets of ptfe. Accordingly the sides of the spigots 40 are slidable on the sides of the slots 41. Such sliding movement is limited by the ends of the spigots 40 engaging the ends of the slots 41.
  • the slide member 20 In use of the bearing the slide member 20, together with the supported part, can accordingly undergo horizontal translational movement in the transverse direction of the bearing within a range limited by the ends of the spigots 40 engaging the ends of the slots 41.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Sliding-Contact Bearings (AREA)
EP19840303374 1983-05-19 1984-05-17 Appui pour constructions Withdrawn EP0126633A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8313925 1983-05-19
GB838313925A GB8313925D0 (en) 1983-05-19 1983-05-19 Structural bearings

Publications (1)

Publication Number Publication Date
EP0126633A2 true EP0126633A2 (fr) 1984-11-28

Family

ID=10543059

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840303374 Withdrawn EP0126633A2 (fr) 1983-05-19 1984-05-17 Appui pour constructions

Country Status (2)

Country Link
EP (1) EP0126633A2 (fr)
GB (2) GB8313925D0 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2614329A1 (fr) * 1987-04-23 1988-10-28 Creation Mecanique Appliquee Dispositif de liaison intermediaire entre un tablier de pont et ses piliers de soutien.
WO1997034052A1 (fr) * 1996-03-12 1997-09-18 Acm Bearings Limited Ameliorations apportees a des paliers
WO2002101151A1 (fr) * 2001-06-12 2002-12-19 Maurer Söhne Gmbh & Co. Kg Systeme support et support y relatif
WO2002103126A1 (fr) * 2001-06-18 2002-12-27 Klaus Daniels Construction
CN102877410A (zh) * 2012-10-30 2013-01-16 洛阳双瑞特种装备有限公司 一种带非金属滑板的盖板的球铰振捣孔结构
WO2014173622A1 (fr) * 2013-04-24 2014-10-30 Maurer Söhne Engineering GmbH & Co. KG Dispositif d'appui coulissant pour ouvrage et procédé de dimensionnement
EP2873883A1 (fr) * 2013-11-18 2015-05-20 Cave S.r.l. Plaier lisse pour construction civile

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1091611A (en) * 1963-05-06 1967-11-22 Glacier Co Ltd Bearings for supporting mainly vertical loads
GB1042397A (en) * 1964-08-11 1966-09-14 P S C Equipment Ltd Improvements in bearings for bridges and like structures

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2614329A1 (fr) * 1987-04-23 1988-10-28 Creation Mecanique Appliquee Dispositif de liaison intermediaire entre un tablier de pont et ses piliers de soutien.
WO1997034052A1 (fr) * 1996-03-12 1997-09-18 Acm Bearings Limited Ameliorations apportees a des paliers
WO2002101151A1 (fr) * 2001-06-12 2002-12-19 Maurer Söhne Gmbh & Co. Kg Systeme support et support y relatif
WO2002103126A1 (fr) * 2001-06-18 2002-12-27 Klaus Daniels Construction
CN102877410A (zh) * 2012-10-30 2013-01-16 洛阳双瑞特种装备有限公司 一种带非金属滑板的盖板的球铰振捣孔结构
CN102877410B (zh) * 2012-10-30 2014-10-08 洛阳双瑞特种装备有限公司 一种带非金属滑板的盖板的球铰振捣孔结构
WO2014173622A1 (fr) * 2013-04-24 2014-10-30 Maurer Söhne Engineering GmbH & Co. KG Dispositif d'appui coulissant pour ouvrage et procédé de dimensionnement
KR20160003742A (ko) * 2013-04-24 2016-01-11 마우러 쇤 엔지니어링 게엠베하 운트 코. 카게 구조용 슬라이딩 베어링 및 치수화하는 방법
KR102254214B1 (ko) 2013-04-24 2021-05-21 마우러 엔지니어링 게엠베하 구조용 슬라이딩 베어링 및 치수화하는 방법
EP2873883A1 (fr) * 2013-11-18 2015-05-20 Cave S.r.l. Plaier lisse pour construction civile

Also Published As

Publication number Publication date
GB2142691A (en) 1985-01-23
GB8412498D0 (en) 1984-06-20
GB8313925D0 (en) 1983-06-22

Similar Documents

Publication Publication Date Title
EP1254320B1 (fr) Mecanisme de palier patins oscillants
US4955310A (en) Bearing arrangement for single point terminal
EP1816362A1 (fr) Roulement a rotule sur rouleaux muni d'un dispositif de retenue et procede de fabrication du dispositif de retenue pour le roulement a rotule sur rouleaux
US4420194A (en) Ball slideway
US4976008A (en) Multi-piece thrust bearing assembly for a hinge structure
EP0126633A2 (fr) Appui pour constructions
US4135372A (en) Universal joint
US4776707A (en) Linear rolling bearing element
US5836699A (en) Roll-formed bushing for sliding surface bearings
US4553792A (en) Structural slide bearing
RU2665772C2 (ru) Несущая опора
JPH042808B2 (fr)
US4692038A (en) Linear motion rolling contact bearing assembly having a load dependent variable resistance
US4884898A (en) Linear motion pillow block including fine tuning features
JPS6014618A (ja) クロス直線ベアリングユニツト
BR9105856A (pt) Suportes hidrodinamicos tendo enchimentos de suporte com viga montada e montagens de suporte lacrados incluindo o mesmo
EP0402333A2 (fr) Dispositif dans des paliers de butée et à contact angulaire
US4715729A (en) Roller bearing for infinite rectilinear motion
US4554846A (en) Two-piece retainer for epicyclic transmissions
US4297839A (en) Chain link and chain assembly including same
JPS5913118A (ja) 無限直線運動用ころ軸受ユニツト
JPS584352A (ja) 工作物保持装置
JPH1130233A (ja) 直線運動案内装置
US4934840A (en) Spherical bearing assembly
CN2183848Y (zh) 直线运动的滚珠式滑轨

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19850704

RIN1 Information on inventor provided before grant (corrected)

Inventor name: REEVE, WILLIAM ERNEST