CN103132450A - Vertical movement horizontal limiting support seat - Google Patents
Vertical movement horizontal limiting support seat Download PDFInfo
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- CN103132450A CN103132450A CN2013100798680A CN201310079868A CN103132450A CN 103132450 A CN103132450 A CN 103132450A CN 2013100798680 A CN2013100798680 A CN 2013100798680A CN 201310079868 A CN201310079868 A CN 201310079868A CN 103132450 A CN103132450 A CN 103132450A
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- steel plate
- support seat
- seat steel
- bearing
- vertical movement
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Abstract
The invention relates to a vertical movement horizontal limiting support seat. When technical measures of an ordinary support seat are adopted, the requirement that horizontal relative displacement between steel rail support points of two sides of adjacent beam ends of a ballastless track bridge which is laid is smaller than or equal to 1mm is impossible to be met. The vertical movement horizontal limiting support seat comprises an upper support seat steel plate and a lower support seat steel plate. A section of the upper support seat steel plate is shaped like a Greek letter 'pi'. A section of the lower support seat steel plate is reverse-T-shaped. The width of a protrusion portion on the top surface of the lower support seat steel plate is equal to the perpendicular distance between two protrusion portions at the bottom of the upper support seat steel plate. The protrusion portion on the top surface of the lower support seat steel plate is clamped between the two protrusion portions at the bottom of the upper support seat steel plate. Teflon plates are adhered on contact surfaces between the upper support seat steel plate and the lower support seat steel plate. The vertical movement horizontal limiting support seat not only satisfies requirements of vertical deformation of a bridge, but also is well applicable to requirements of laying ballastless tracks on a high-speed railway under the condition that vertical stress of a beam structure is not changed.
Description
Technical field
The invention belongs to the bridge pad technical field, be specifically related to a kind of vertical movable cross spacing bearing.
Background technology
Recently China Express Railway development is swift and violent, for satisfying the maintenance work of high speed traveling needs and minimizing railway roadbed, the non-fragment orbit technology is widely used in high-speed railway, but along with the application of non-fragment orbit has also brought new problem, the requirement of the intimate harshness that especially bridge construction distortion is proposed---" the horizontal relative displacement of rail bearing point of laying the adjacent beam-ends of ballastless track bridge both sides not should greater than 1mm ", as adopt the technical measures of conventional bearing, can't satisfy its requirement at all, demand new technical scheme urgently and solved.
Summary of the invention
The purpose of this invention is to provide a kind of in the situation that do not change former beam structure vertical applied force, satisfy the non-fragment orbit vertical movable cross spacing bearing that relative displacement requires to bridge lateral.
The technical solution adopted in the present invention is:
Vertical movable cross spacing bearing is characterized in that:
Described bearing includes upper bracket steel plate and undersetting steel plate;
Bottom the plate face of upper bracket steel plate, two projections are set, make the cross section of upper bracket steel plate be the π font;
The plate face top of undersetting steel plate arranges a projection, makes the cross section of undersetting steel plate be inverted T-shape;
Vertical distance between two projections of the width of undersetting steel plate end face projection and upper bracket steel plate bottom is identical, and undersetting steel plate end face projection is fastened between two projections of upper bracket steel plate bottom.
Be pasted with the tetrafluoro plate on the contact surface of described upper bracket steel plate and undersetting steel plate.
The present invention has the following advantages:
The present invention has not only satisfied the needs of bridge vertical deformation, and is not changing in beam structure vertical applied force situation, has better adapted to the requirement that high-speed railway is laid non-fragment orbit.
Description of drawings
Fig. 1 is direction across bridge elevation of the present invention.
Fig. 2 is that the suitable bridge of the present invention is to elevation.
Fig. 3 is the location arrangements figure of conventional bearing.
Fig. 4 arranges the location arrangements figure of bearing cross spacing bearing on the steel arch bridge crossbeam.
In figure, 1-upper bracket steel plate, 2-undersetting steel plate, 3-fixing hole, the horizontal freely movable bearing of 4-, the horizontal fixed bearing of 5-, the vertical movable cross spacing bearing of 6-, 7-rail.
The specific embodiment
The present invention will be described in detail below in conjunction with the specific embodiment.
Referring to Fig. 1 and Fig. 2, a kind of vertical movable cross spacing bearing of the present invention includes upper bracket steel plate 1 and undersetting steel plate 2.Wherein, the plate face of upper bracket steel plate 1 bottom arranges two projections, makes the cross section of upper bracket steel plate 1 be the π font; The plate face top of undersetting steel plate 2 arranges a projection, makes the cross section of undersetting steel plate 2 be inverted T-shape.The width of undersetting steel plate 2 end face projections is identical with vertical distance between upper bracket steel plate 1 bottom two projections, undersetting steel plate 2 end face projections are fastened between upper bracket steel plate 1 bottom two projections, make upper and lower bearing steel plate form cross spacing, vertical movable connection.Be pasted with the tetrafluoro plate on the contact surface of upper bracket steel plate 1 and undersetting steel plate 2, to reduce upper bracket steel plate 1 and the vertical frictional force of undersetting steel plate 2.Upper bracket steel plate 1 and place, undersetting edges of plate are provided with fixing hole and position fixing.
Conventional support position arrangement diagram referring to Fig. 3, this bridge arch rib horizontal spacing is larger, bearing is positioned at below arch springing, its bearing horizontal spacing is controlled because of structure and is reached 16m, and adjacent simple supported box beam bearing horizontal spacing only has 4.5m, 38 ℃ of the bridge location place highest temperatures, and the lowest temperature is-36.5 ℃, maximum temperature difference reaches 74.5 ℃, and the gapless rail fastening-down temperature of rail is 12 ± 5 ℃.Bearing is arranged routinely, 1., the 3. horizontal fixed bearing of number location arrangements, and 2., the 4. horizontal freely movable bearing of number location arrangements.
Steel arch bridge side rail is apart from the fixed bearing maximum distance:
L1=800+178.25+143.5=1121.75cm
When 36.5+12+5=53.5 ℃ of least favorable situation borehole cooling:
The farthest side rail is subjected to displacement apart from fixed bearing:
△L=1121.75x10x53.5x1.2X10
-5=7.2mm；
Concrete simply supported beam side rail is apart from the fixed bearing maximum distance:
L1=225+178.25+143.5=546.75cm
The farthest side rail is subjected to displacement apart from fixed bearing:
△L=546.75x10x53.5x1.0X10
-5=2.9mm；
Steel arch bridge and the horizontal maximum displacement of concrete simply supported beam both sides rail are:
7.2-2.9=4.3mm 1.0mm, be far longer than " relative displacement not should greater than 1mm " requirement of standard.
The location arrangements figure that arranges vertical movable cross spacing bearing on the steel arch bridge crossbeam referring to Fig. 4.For addressing the above problem, the application's technical scheme is broken the normal procedure and arrange three bearings on end floor beam, increases the middle 5. vertical movable cross spacing bearing of number position of crossbeam, and both sides 1., 2. number position is horizontal freely movable bearing.
Steel arch bridge side rail is apart from the fixed bearing maximum distance:
L1=178.25+143.5=321.75cm
When 53.5 ℃ of least favorable coolings:
The farthest side rail is subjected to displacement apart from fixed bearing:
△L=321.75x10x53.5x1.2X10
-5=2.1mm；
Steel arch bridge and the horizontal maximum displacement of concrete simply supported beam both sides rail are:
2.9-2.1=0.8mm＜1.0mm, such bearing arrangement have satisfied standard " relative displacement not should greater than 1mm " requirement.
Vertical steel arch bridge beam structure belongs to simple flexural member under normal circumstances, and span centre i.e. 5. number bearing place base plate tension, the top board pressurized; Only adopt conventional transverse support as 5. number bearing, and do not adopt vertical movable cross spacing bearing of the present invention, because 5. the layout of number bearing, with changing the stress model of gooseneck, become the top board tension, the base plate pressurized, and increase very large vertical counter-force, and need to strengthen design to the crossbeam at 5. number bearing place, so not only need to increase more steel using amount, also changed former beam force mode, made beam force become extremely complicated.The vertical movable cross spacing bearing of the present invention has solved cleverly at the force way that neither changes original structure, satisfies again the difficult problem of " the horizontal relative displacement of rail bearing point of the adjacent beam-ends of ballastless track bridge both sides not should greater than 1mm ".
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading manual of the present invention is claim of the present invention and contains.
Claims (2)
1. vertical movable cross spacing bearing is characterized in that:
Described bearing includes upper bracket steel plate (1) and undersetting steel plate (2);
Bottom the plate face of upper bracket steel plate (1), two projections are set, make the cross section of upper bracket steel plate (1) be the π font;
The plate face top of undersetting steel plate (2) arranges a projection, makes the cross section of undersetting steel plate (2) be inverted T-shape;
Vertical distance between two projections of the width of undersetting steel plate (2) end face projection and upper bracket steel plate (1) bottom is identical, and undersetting steel plate (2) end face projection is fastened between two projections of upper bracket steel plate (1) bottom.
2. vertical movable cross spacing bearing according to claim 1 is characterized in that:
Be pasted with the tetrafluoro plate on the contact surface of described upper bracket steel plate (1) and undersetting steel plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079868.0A CN103132450B (en) | 2013-03-14 | 2013-03-14 | Vertical movement horizontal limiting support seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310079868.0A CN103132450B (en) | 2013-03-14 | 2013-03-14 | Vertical movement horizontal limiting support seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103132450A true CN103132450A (en) | 2013-06-05 |
| CN103132450B CN103132450B (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310079868.0A Active CN103132450B (en) | 2013-03-14 | 2013-03-14 | Vertical movement horizontal limiting support seat |
Country Status (1)
| Country | Link |
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| CN (1) | CN103132450B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105755949A (en) * | 2016-04-18 | 2016-07-13 | 招商局重庆交通科研设计院有限公司 | Box girder transverse limiting device |
| CN107841942A (en) * | 2017-11-30 | 2018-03-27 | 中铁二院工程集团有限责任公司 | A kind of hyperboloid friction pendulum support |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1196439A1 (en) * | 1983-10-21 | 1985-12-07 | Белорусский Институт Инженеров Железнодорожного Транспорта | Tangential supporting part of bridge |
| SU1196440A1 (en) * | 1984-01-13 | 1985-12-07 | Государственный всесоюзный дорожный научно-исследовательский институт | Stationary supporting part of bridge |
| SU1406289A1 (en) * | 1986-01-07 | 1988-06-30 | Белорусский Институт Инженеров Железнодорожного Транспорта | Bridge structure |
| JPH11172623A (en) * | 1997-12-09 | 1999-06-29 | Bridgestone Corp | Bridge bearing movement limiting device |
| CN2414102Y (en) * | 2000-03-29 | 2001-01-10 | 衡水橡胶股份有限公司 | Longitudinal moveable shock-resistant basin-shaped rubber support |
| CN201033541Y (en) * | 2007-06-01 | 2008-03-12 | 成都飞机工业（集团）有限责任公司 | Transverse blocking support base with fork ear |
| CN201506224U (en) * | 2009-10-11 | 2010-06-16 | 罗家鑫 | Load carrier spring carrying block |
| CN202023142U (en) * | 2011-04-14 | 2011-11-02 | 柳州东方工程橡胶制品有限公司 | Sidewise force control support |
| CN202322446U (en) * | 2011-12-13 | 2012-07-11 | 山东泰北环保设备股份有限公司 | Adjustable bearing component for reverse osmosis and ultrafiltration water purifying equipment |
| CN203129007U (en) * | 2013-03-14 | 2013-08-14 | 中铁第一勘察设计院集团有限公司 | Vertically movable bearing with horizontal limit |
-
2013
- 2013-03-14 CN CN201310079868.0A patent/CN103132450B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1196439A1 (en) * | 1983-10-21 | 1985-12-07 | Белорусский Институт Инженеров Железнодорожного Транспорта | Tangential supporting part of bridge |
| SU1196440A1 (en) * | 1984-01-13 | 1985-12-07 | Государственный всесоюзный дорожный научно-исследовательский институт | Stationary supporting part of bridge |
| SU1406289A1 (en) * | 1986-01-07 | 1988-06-30 | Белорусский Институт Инженеров Железнодорожного Транспорта | Bridge structure |
| JPH11172623A (en) * | 1997-12-09 | 1999-06-29 | Bridgestone Corp | Bridge bearing movement limiting device |
| CN2414102Y (en) * | 2000-03-29 | 2001-01-10 | 衡水橡胶股份有限公司 | Longitudinal moveable shock-resistant basin-shaped rubber support |
| CN201033541Y (en) * | 2007-06-01 | 2008-03-12 | 成都飞机工业（集团）有限责任公司 | Transverse blocking support base with fork ear |
| CN201506224U (en) * | 2009-10-11 | 2010-06-16 | 罗家鑫 | Load carrier spring carrying block |
| CN202023142U (en) * | 2011-04-14 | 2011-11-02 | 柳州东方工程橡胶制品有限公司 | Sidewise force control support |
| CN202322446U (en) * | 2011-12-13 | 2012-07-11 | 山东泰北环保设备股份有限公司 | Adjustable bearing component for reverse osmosis and ultrafiltration water purifying equipment |
| CN203129007U (en) * | 2013-03-14 | 2013-08-14 | 中铁第一勘察设计院集团有限公司 | Vertically movable bearing with horizontal limit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105755949A (en) * | 2016-04-18 | 2016-07-13 | 招商局重庆交通科研设计院有限公司 | Box girder transverse limiting device |
| CN107841942A (en) * | 2017-11-30 | 2018-03-27 | 中铁二院工程集团有限责任公司 | A kind of hyperboloid friction pendulum support |
| CN107841942B (en) * | 2017-11-30 | 2023-08-11 | 中铁二院工程集团有限责任公司 | Hyperboloid friction pendulum support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103132450B (en) | 2015-04-22 |
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Inventor after: Wang Zhengming Inventor after: Liu Yanming Inventor after: Xu Zhenzhong Inventor after: Li Chenggen Inventor before: Liu Yanming Inventor before: Xu Zhenzhong Inventor before: Li Chenggen |
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Free format text: CORRECT: INVENTOR; FROM: LIU YANMING XU ZHENZHONG LI CHENGGEN TO: WANG ZHENGMING LIU YANMING XU ZHENZHONG LI CHENGGEN |
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