CN105200915B - Bridge deck or rail non-lifting longitudinal movable spherical support for railway bridge and construction method thereof - Google Patents
Bridge deck or rail non-lifting longitudinal movable spherical support for railway bridge and construction method thereof Download PDFInfo
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- CN105200915B CN105200915B CN201510599316.1A CN201510599316A CN105200915B CN 105200915 B CN105200915 B CN 105200915B CN 201510599316 A CN201510599316 A CN 201510599316A CN 105200915 B CN105200915 B CN 105200915B
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Abstract
The invention relates to a bridge deck or rail non-lifting longitudinal movable spherical support for a railway bridge and a construction method thereof. A lower support plate of the support is wedged; the upper surface of the lower support plate is parallel to a longitudinal slope on a beam; the lower support plate and a support padding stone are horizontally and tightly stuck and are connected by an anchor bolt; an upper support plate of the support and a spherical crown lining plate are arranged obliquely so that the bridge and the support can directly and freely longitudinally move. The construction method comprises the following steps: chiseling and re-measuring the top surface of the support padding stone and aligning the anchor bolt; hoisting the longitudinal movable spherical support in place, grouting an anchor hole, sealing the periphery and grouting the lower support plate. When the railway bridge is longitudinally retracted and deformed, a sliding surface of the spherical support is parallel to the longitudinal slope on the beam of the bridge; the railway bridge can freely and longitudinally move and is adapted to longitudinal deformation of the railway bridge, so that phenomena that the support is detached and the bridge deck or a rail is lifted and the like are avoided. The bridge deck or rail non-lifting longitudinal movable spherical support has the advantages of reasonable stressing structure, simplicity in construction, stability and comfort in driving, good durability and convenience in maintenance, and is used for Shanghai-Nantong Yangtze River Bridge.
Description
Technical field
The present invention relates to a kind of railroad bridge bridge floor or track are without lifting longitudinally-moving spherical bearing and its construction method.
Background technology
Spherical bearing has turning power strong, non-directional and can adjust in advance as a kind of novel base for supporting of exceptional function
The angle of whole bearing upper plate, disclosure satisfy that the deformation characteristic of bridge structure multiple-directional rotating, and bridge pad directly influences bridge and makes
It is smooth with life-span and traffic safety.At present the Major Diseases of bearing include：(1) seat empty：Bearing pad stone and beam bottom steel plate not water
It is flat；(2) bearing abnormal deformation；(3) bearing can not normally slide；(4) bearing ftractures.
Traditional spherical bearing structure see Fig. 2,3.The displacement of spherical bearing is slided with the relative of spherical crown liner plate by lower support plate
Move to realize.It is to set longitudinal gradient 3 in the upper surface of wedge-shaped steel plate 4 when bridge needs to arrange longitudinal gradient, lower surface is horizontal plane；Wedge
Shape upper surface of steel plate is bolted with girder steel 5.The upper bracket plate 6 of spherical bearing, spherical crown liner plate 7 and the equal horizontal positioned of lower support plate 1, ball
The sliding surface of shape bearing is horizontal plane.The structure can bring following some problems：
(1) longitudinal gradient is set by the mortar bed on bearing pad stone, because pinner size is less prefabricated error cannot be eliminated,
In addition the wear resistance and poor durability of mortar bed, thus it is difficult to predetermined longitudinal gradient value；
(2) set longitudinal gradient by connecing wedge-shaped steel plate in bridge back welding, it is ensured that spherical bearing horizontal positioned, realize beam body and ball-type
Closely connected between bearing, this way is usually used in highway bridge, but there is bridge under load (containing temperature change) effect, and ball-type is propped up
Seat causes the lifting of bridge beam end bridge floor or reduces (see Fig. 3) in longitudinally reciprocating motion, affects the smooth-going operation of vehicle.For ferrum
Road and bridge can make the lifting of beam-ends rail or reduction, cause deformation of rail excessive, the smooth-going of track circuit be affected, while can also make track
Very big additional stress is produced, there is larger hidden danger, have a strong impact on the overall performance of bridge and train operating safety.
In view of at present many bridges are both provided with longitudinal gradient, existing spherical bearing can not be solved or avoid spherical bearing from sliding
The spherical bearing for causing comes to nothing and bridge floor or track lifting.In order to solve this difficult problem, need to create spherical bearing structure
New design.
The content of the invention
The purpose of the present invention is to be directed to above-mentioned present situation, it is desirable to provide one can meet railroad bridge longitudinal gradient requirement, while keeping away
Exempt from vertically moving due to bearing, cause railroad bridge end bridge floor or track to produce lifting effect, make rail smooth, driving is flat
Surely, comfortably, safely, good endurance, the few railroad bridge bridge floor of maintenance workload or track are without lifting longitudinally-moving ball-type
Seat and its construction method.
The implementation of the object of the invention is that railroad bridge bridge floor or track are indulged without lifting longitudinally-moving spherical bearing
Upper surface to the lower support plate of movable spherical bearing is parallel with longitudinal gradient on beam, and lower support plate is designed as wedge shape, and bridge is in wedge shape
Block surface energy is free to move longitudinally；Lower support plate is closely connected with bearing pad stone level and is connected with anchor bolt；Spherical bearing it is upper
Support plate and spherical crown liner plate are tilting, and upper lower support plate forms a pair of longitudinal sliding motion friction pairs, make longitudinally-moving spherical bearing slide
All the time longitudinal gradient keeping parallelism is designed with girder steel in face.
The construction method of railroad bridge bridge floor or track without lifting longitudinally-moving spherical bearing, the concrete steps of construction are such as
Under：
(1) bearing pad stone top surface chisel and repetition measurement clearly, according to construction design drawing, determines putting for longitudinally-moving spherical bearing
Direction, the main displacement direction of especially longitudinal movable spherical bearing, it is ensured that each longitudinally-moving spherical bearing installation direction is correct；
(2) bearing crab-bolt para-position, presses the reserved crab-bolt hole site of design drawing on longitudinally-moving spherical bearing pinner, and sets
Put spacer bar to ensure duct not off normal when concrete vibrating is poured into a mould, it is ensured that its perpendicularity；
(3) lifting of longitudinally-moving spherical bearing is in place；
(4) longitudinally-moving spherical bearing anchor hole mud jacking；
(5) longitudinally-moving spherical bearing periphery closure；
(6) seat board mud jacking under the spherical spherical bearing of longitudinally-moving.
Main feature of the present invention is as follows：
(1) upper surface of lower support plate is parallel with longitudinal gradient in Bridge Beam, and lower support plate is closely connected with bearing pad stone level to be used in combination
Anchor bolt connects；When bridge is vertically moved, because longitudinally-moving spherical bearing sliding surface is protected all the time with longitudinal gradient in Bridge Beam
Fair row, girder construction can longitudinal Free Transform and do not produce vertical displacement change, it is to avoid rail produces additional force；
(2) lower support plate is designed as wedge shape, girder can be realized by longitudinally-moving spherical bearing it is free to move longitudinally, can
The counter-force that transmission longitudinally-moving spherical bearing bears, can fully adapt to the Free Transform of beam body again, it is to avoid longitudinally-moving ball-type
Seat movement causes bridge floor or track lifting phenomenon to occur, and so as to extend bridge floor or track service life, improves bridge floor train stability
Property and safety.
(3) longitudinally-moving spherical bearing does not use rubber pressure-bearing, there is no rubber in longitudinally-moving spherical bearing and is hardened always
The impact to spherical bearing rotating property and durability such as change, wear resistance is strong therefore also same for northern low temp area bridge
Sample is suitable for.
The longitudinally-moving spherical bearing of the present invention have structure stress rationally, construction it is succinct, perfect in shape and function, driving is steady to relax
It is suitable, good endurance and maintenance workload it is little, be that Bridge Design field opens new approach the advantages of be easy to maintenance and replacement, tool
There is extensive popularizing application prospect.The present invention has been applied to Shanghai Changjiang River Bridge Project, and current bridge has completed construction drawing design.
Description of the drawings
Fig. 1 is schematic structural view of the invention,
Fig. 2 is the seat structure figure that conventionally employed wedge-shaped steel plate sets longitudinal gradient,
Fig. 3 is the schematic diagram that traditional spherical bearing occurs length travel.
Specific embodiment
The present invention is described in detail in detail with reference to the accompanying drawings.
With reference to Fig. 1, the upper surface of the lower support plate 1 of longitudinally-moving spherical bearing is parallel with longitudinal gradient on the beam of girder steel 5, lower
Seat board is designed as wedge shape, and bridge is free to move longitudinally in wedge surface energy.Lower support plate 1 is closely connected simultaneously with the level of bearing pad stone 2
Connected with anchor bolt.The upper bracket plate 6 and spherical crown liner plate 7 of spherical bearing is tilting according to longitudinal gradient on beam, upper lower support plate shape
In a pair longitudinal sliding motion friction pair, makes longitudinally-moving spherical bearing sliding surface design longitudinal gradient keeping parallelism with girder steel 5 all the time.
The upper surface of lower support plate 1 is parallel with longitudinal gradient on beam, and lower seat board is with bearing pad stone holding level and uses anchor bolt
Connection, longitudinally-moving spherical bearing occur length travel when, longitudinally-moving spherical bearing sliding surface all the time with girder steel keeping parallelism,
Bridge is realized vertically moving by bearing, it is to avoid longitudinally-moving spherical bearing comes to nothing and the phenomenon such as bridge floor or track lifting occurs,
Improve bridge floor roadability and safety.
The present invention operation principle be：
The length travel function of longitudinally-moving spherical bearing is realized by the slip between spherical crown liner plate and lower seat board.
Longitudinally-moving spherical bearing has no effect on main structure stress after being longitudinally subjected to displacement or rotating, when longitudinally-moving ball
Type bearing receive external force longitudinal sliding motion when, sliding surface all the time with longitudinal gradient keeping parallelism on beam.Avoid producing extra additional force to steel
Beam beam body and track have a negative impact.
The rotating function of longitudinally-moving spherical bearing is slided relatively by ball type of contact surface between upper bracket plate and spherical crown liner plate
Move to realize.
The construction of the present invention is comprised the following steps that：
(1) bearing pad stone top surface chisel and repetition measurement clearly, according to construction design drawing, determines putting for longitudinally-moving spherical bearing
Direction, the main displacement direction of especially longitudinal movable spherical bearing, it is ensured that the correct nothing of each longitudinally-moving spherical bearing installation direction
By mistake；
(2) longitudinally-moving spherical bearing crab-bolt para-position, presses the reserved anchor of design drawing on longitudinally-moving spherical bearing pinner
Keyhole position, and spacer bar is set to ensure duct not off normal when concrete vibrating is poured into a mould, it is ensured that its perpendicularity；
(3) lifting of longitudinally-moving spherical bearing is in place；
(4) longitudinally-moving spherical bearing anchor hole mud jacking；
(5) longitudinally-moving spherical bearing periphery closure；
(6) seat board mud jacking under the spherical spherical bearing of longitudinally-moving.
Replacing of the present invention during runing is safeguarded：
Bridge longitudinally-moving spherical bearing changes overall plan:The preparation of construction of each side is carried out, after block circuit, is adopted
With large-tonnage hydraulic jack by the beam body of pier top while jack-up, by outside old longitudinally-moving spherical bearing pull-out bridge, digs out filling
New longitudinally-moving spherical bearing is reinstalled after slurry in place, beam body falls, irrigate grouting material, reach intensity backed off after random very heavy
Top, recovers circuit and passes through.
Design service life of the present invention is no less than 60 years, should periodically to longitudinally-moving spherical bearing structure and anchor during operation
Bolt carries out protective coating.Check longitudinally-moving spherical bearing crab-bolt whether there is to cut off, longitudinally-moving spherical bearing dust seal skirt has
Without breakage；Inspection longitudinally-moving spherical bearing height change is checked and pinpoints, to check the abrasion of tetrafluoroethene plate in bearing
Situation, when longitudinally-moving spherical bearing height change is more than 3mm, is considered as whether changing tetrafluoroethene plate.
The present invention have structure stress rationally, construction it is succinct, using perfect in shape and function, driving is steady comfortable, good endurance and
Maintenance workload is little, is that Bridge Design field opens new approach the advantages of be easy to maintenance and replacement, should with extensive popularization
Use prospect.Jing of the present invention is simply adjusted, and can be used for longitudinally-moving bearing, the design and manufacture of multidirectional movable bearing support, it is to avoid railway
Beam-ends bridge floor or track lifting affect on driving.The present invention has been applied to Shanghai Changjiang River Bridge Project, and current bridge completes to apply
Work G- Design.
Claims (3)
1. railroad bridge bridge floor or track are without lifting longitudinally-moving spherical bearing, it is characterised in that：Longitudinally-moving spherical bearing
Lower support plate upper surface and girder steel design longitudinal gradient it is parallel, lower support plate is designed as wedge shape, wedge shape of the bridge in lower support plate
Surface energy is free to move longitudinally；Lower support plate is closely connected with bearing pad stone level and is connected with anchor bolt；Longitudinally-moving ball-type
The upper bracket plate and spherical crown liner plate of seat is tilting, and upper lower support plate forms a pair of longitudinal sliding motion friction pairs, makes longitudinally-moving ball-type
Seat sliding surface designs longitudinal gradient keeping parallelism with girder steel all the time.
2., without lifting longitudinally-moving spherical bearing, its feature exists for railroad bridge bridge floor according to claim 1 or track
In：The lower support plate upper surface cladding corrosion resistant plate of longitudinally-moving spherical bearing, spherical crown liner plate lower surface cladding tetrafluoroethene plate,
The slip of longitudinally-moving spherical bearing is realized by the sliding surface constituted between lower support plate and spherical crown liner plate.
3. the method for railroad bridge bridge floor or track without lifting longitudinally-moving spherical bearing constructed described in claim 1, applies
Work is comprised the following steps that：
(1) bearing pad stone top surface chisel and repetition measurement clearly, according to construction design drawing, determines the side of putting of longitudinally-moving spherical bearing
To in the main displacement direction of longitudinally-moving spherical bearing, it is ensured that each longitudinally-moving spherical bearing installation direction is correct；
(2) anchor bolt para-position, presses the reserved anchor bolt hole position of design drawing on the bearing pad stone of longitudinally-moving spherical bearing
Put, and spacer bar is set to ensure duct not off normal when concrete vibrating is poured into a mould, it is ensured that its perpendicularity；
(3) lifting of longitudinally-moving spherical bearing is in place；
(4) longitudinally-moving spherical bearing anchor bolt pore pressure slurry；
(5) longitudinally-moving spherical bearing periphery closure；
(6) longitudinally-moving spherical bearing lower support plate mud jacking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510599316.1A CN105200915B (en) | 2015-07-14 | 2015-09-18 | Bridge deck or rail non-lifting longitudinal movable spherical support for railway bridge and construction method thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510413552X | 2015-07-14 | ||
| CN201510413552 | 2015-07-14 | ||
| CN201510599316.1A CN105200915B (en) | 2015-07-14 | 2015-09-18 | Bridge deck or rail non-lifting longitudinal movable spherical support for railway bridge and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105200915A CN105200915A (en) | 2015-12-30 |
| CN105200915B true CN105200915B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510599316.1A Active CN105200915B (en) | 2015-07-14 | 2015-09-18 | Bridge deck or rail non-lifting longitudinal movable spherical support for railway bridge and construction method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112854025A (en) * | 2021-01-13 | 2021-05-28 | 中铁九局集团有限公司 | Construction method for treating corner overrun defect of high-speed railway bridge support |
| CN113356040B (en) * | 2021-07-02 | 2022-12-20 | 湖南省交通规划勘察设计院有限公司 | Bridge slope, corner adjustable ball shaped steel support |
| CN113605258B (en) * | 2021-08-04 | 2022-10-25 | 中铁大桥勘测设计院集团有限公司 | Bridge support and replacing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2223783A (en) * | 1988-09-20 | 1990-04-18 | Thos Storey | Bearing for a panel bridge |
| CN2416134Y (en) * | 2000-01-18 | 2001-01-24 | 衡水宝力工程橡胶有限公司 | Bridge slope bearing |
| CN2436547Y (en) * | 2000-08-17 | 2001-06-27 | 常熟橡胶厂 | Slope type ball shape support |
| CN101413249A (en) * | 2008-12-01 | 2009-04-22 | 中铁大桥局股份有限公司 | Method for positioning and mounting large-scale bridge support |
| CN205012218U (en) * | 2015-09-18 | 2016-02-03 | 中铁大桥勘测设计院集团有限公司 | Iron road bridge for roof beam bridge floor or track do not have lifting longitudinal movement ball -type support |
-
2015
- 2015-09-18 CN CN201510599316.1A patent/CN105200915B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2223783A (en) * | 1988-09-20 | 1990-04-18 | Thos Storey | Bearing for a panel bridge |
| CN2416134Y (en) * | 2000-01-18 | 2001-01-24 | 衡水宝力工程橡胶有限公司 | Bridge slope bearing |
| CN2436547Y (en) * | 2000-08-17 | 2001-06-27 | 常熟橡胶厂 | Slope type ball shape support |
| CN101413249A (en) * | 2008-12-01 | 2009-04-22 | 中铁大桥局股份有限公司 | Method for positioning and mounting large-scale bridge support |
| CN205012218U (en) * | 2015-09-18 | 2016-02-03 | 中铁大桥勘测设计院集团有限公司 | Iron road bridge for roof beam bridge floor or track do not have lifting longitudinal movement ball -type support |
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| Publication number | Publication date |
|---|---|
| CN105200915A (en) | 2015-12-30 |
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