CN201116363Y - Highway bridge assembling type rubber support - Google Patents
Highway bridge assembling type rubber support Download PDFInfo
- Publication number
- CN201116363Y CN201116363Y CNU2007201495789U CN200720149578U CN201116363Y CN 201116363 Y CN201116363 Y CN 201116363Y CN U2007201495789 U CNU2007201495789 U CN U2007201495789U CN 200720149578 U CN200720149578 U CN 200720149578U CN 201116363 Y CN201116363 Y CN 201116363Y
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- China
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- stainless steel
- rubber support
- bearing
- highway bridge
- sliding plate
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Abstract
The utility model relates to a novel road bridge support, which is called a road bridge fabricated rubber support, called a fabricated rubber support for short, seeing an abstract and an attached sketch. In the project of repairing road bridges, the fabricated rubber support is used to change a damaged sliding plate rubber support which is placed below movement joints. The fabricated rubber support is an improved sliding plate rubber support, and is combined by a common sliding plate rubber support and a steel element which matches with the common sliding plate rubber support. The steel element is formed by a stainless steel frame (2), a stainless steel flat plate (3) and a carbon steel flat plate (4). The sliding plate rubber support (1) is embedded in the stainless steel frame at the top of the steel element, the carbon steel flat plate (4) at the bottom of the steel element is welded with a constructional steel bar (7) at the top of piers and abutments. After the fabricated rubber support is installed, the angle of inclination at the top surface of the sliding rubber support is identical with the angle of inclination at the bottom surface of a main beam, and the main beam can be jacked up at any time, a front baffle plate of the stainless steel frame (2) of the steel element is opened to adjust the elevation of the top surface of the sliding plate rubber support (1) or to change the sliding plate rubber support (1).
Description
Technical field
The utility model relates to a kind of novel highway bridge bearing, in the engineering of repairing highway bridge, uses the utility model to remove to change the shrinkage joint teflon slider bearing below, that damaged.
Background technology
Below Highway Bridge Expansion Joint, teflon slider bearing is between pier and girder, and they are bearing vertical load and the horizontal loading that girder applies.Teflon slider bearing is an elasticoplastic body, under the effect of vertical load, will produce the decrement of 1-6mm, makes bridge floor produce depression along direction across bridge; Under the effect of horizontal loading, will produce shear strain.When shear strain is excessive, the rubber of its side cracking, steel plate is exposed, the function of use forfeiture.Be generally 30-50 the application life of highway bridge, will change a slide type rubber and prop up in average per 10 years.
Change teflon slider bearing, common way is, at first with jack with girder jack-up, then with former bearing shovel down with perching knife, the last new bearing of pasting a same model again in the original place.According to design, more renew bearing after, bridge floor will return to the former bridge crown line when being completed, whole its end face of row's bearing all will contact with the bottom surface of girder comprehensively and closely on the pier.This just requires, and the absolute altitude of new bearing end face will adhere to specification, and the angle of inclination of new bearing end face will match fully with the angle of inclination of girder bottom surface.
But this technology of changing bearing but exists following problem: for manufacturing of new bearing, no matter be on the material or on the size, all exist error with former bearing; For the installation of new bearing, no matter the absolute altitude or the angle of inclination of its end face all exist error with design.For the dismounting of former bearing, the concrete absolute altitude of pier end face all can produce uneven whereabouts.This three classes error is superimposed, and will form bigger error.After new bearing was secured on the pier, the angle of inclination and the absolute altitude of its end face just were determined, and can't adjust.The error of bearing end face absolute altitude makes bridge floor depart from designed crown line, makes superstructure be in corrugated holding state along direction across bridge.Between two adjacent new bearings, superstructure will produce shearing force, and when this shearing force surpassed the shear strength of material, superstructure just produced vertical bridge to cracking.The error of new bearing top surface inclination angle makes this bearing be in the local support state, and this has just strengthened its vertical decrement, has shortened its application life.
Summary of the invention
The purpose of this utility model will provide a kind of improved teflon slider bearing exactly, and it is referred to as highway bridge assembling neoprene bearing, is called for short the assembling neoprene bearing.This bearing can be provided with the angle of inclination of bearing end face exactly, can adjust the absolute altitude of bearing end face exactly, and can simplify the technology of next time changing bearing greatly.
The purpose of this utility model is achieved in that below a common teflon slider bearing, adds a steel member that matches with it, sees Fig. 1 and Fig. 2 of Figure of description.If this common teflon slider bearing is (1), the steel member is welded by stainless steel framework (2), stainless steel flat plate (3) and carbon steel flat board (4) three parts from top to bottom.Teflon slider bearing (1) embeds in the stainless steel framework (2) at steel member top, and the carbon steel flat board (4) of steel member bottom welds together with the distributing bar (7) at pier top.Stainless steel framework (2) is a rectangular box, and it is assembled by four road bolts (5) by four stainless steel baffle plates.Place, base, the outside at the right baffle-plate (2-2) of stainless steel framework (2), right baffle plate (2-3) and backboard (2-4) implements welding, forms weld seam (6), and they and stainless steel flat plate (3) are linked together.The front apron (2-1) of stainless steel framework (2) is fixed on the front end place of right baffle-plate (2-2) and right baffle plate (2-3) by twice bolt (5), and it can be dismantled and install at any time, puts into or take out teflon slider bearing (1).Teflon slider bearing (1) therefore changes assembling into by adhesive type.
The steel member of assembling neoprene bearing is according to precision refining forming in the workshop of machining.Before changing bearing, measure the absolute altitude of girder bottom surface with dial gage earlier, design return to former bridge when being completed needed rises of crown line highly add the decrement of teflon slider bearing (1), be the design load that girder props up heights of roofs.After taking off former bearing, change the assembling neoprene bearing, and the carbon steel flat board (4) of this bearing steel member bottom supported, make the end face and the bottom surface comprehensive engagement of girder of the teflon slider bearing (1) of steel member top, the distributing bar (7) of carbon steel flat board (4) and pier welds together.After falling girder, just finished the work of changing bearing.
The utility model falls girder and gets final product after in place between pier and the girder, the actual elevation of girder bottom surface usually and design load very identical, its error is less than 0.05mm.Differ bigger as actual absolute altitude and design load, then can take the front apron (2-1) of stainless steel framework (2) apart, change the suitable teflon slider bearing (1) of a thickness, the actual elevation of girder bottom surface is adjusted to design load again with girder jack-up.Particularly when the actual elevation of girder bottom surface during, even need not to change teflon slider bearing (1), only need get final product at the suitable corrosion resistant plate of thickness of below cushioning of teflon slider bearing (1) less than design load.After several years, when needs are changed bearing once more, only need to take girder jack-up the front apron (2-1) of stainless steel framework (2) apart, change one slide-plate formula neoprene bearing (1) according to former design load and get final product.When the assembling neoprene bearing is installed, its end face with the bottom surface comprehensive engagement of girder, so after girder fell, the bearing capacity of bearing end face was evenly distributed.
Description of drawings
Concrete structure of the present utility model is provided by following accompanying drawing and concrete enforcement.
Fig. 1 is the basic view of the steel member of the highway bridge assembling neoprene bearing that proposes according to the utility model, and Fig. 2 is the basic view of installation or removal of the teflon slider bearing (1) at its top of highway bridge assembling neoprene bearing of proposing according to the utility model.
Describe in detail according to the details of the concrete device that the utility model proposed and the situation of installation below in conjunction with Fig. 1 and Fig. 2.
The specific embodiment
The utility model is made up of common teflon slider bearing and steel member.Teflon slider bearing (1) is rectangular, is the standardized structural element of bridge engineering, and the steel member is according to the size of teflon slider bearing (1), the maximum vertical bearing capacity of bearing and distributing bar (7) design and manufacture at pier top.
1. the design and manufacture of steel member
The length of stainless steel framework (2) inwall and wide each length and wide 6mm greater than teflon slider bearing (1); It highly is 2/3rds of teflon slider bearing (a 1) thickness.When the maximum vertical bearing capacity of bearing was no more than 30t, its wall thickness was 5mm; When the maximum vertical bearing capacity of bearing surpasses 30t, its every increase 20t, the wall thickness of stainless steel framework (2) increases 1mm.What assembling stainless steel baffle plate became stainless steel framework (2) is bolt (5), and its cross-sectional area minimum is 100mm
2, when the maximum vertical bearing capacity of bearing surpasses 30t, every increase 10t, its cross-sectional area increases 10mm
2
The thickness of stainless steel flat plate (3) is identical with the wall thickness of stainless steel framework (2), each outside 60mm greater than stainless steel framework (2) of its four limit.Upper surface in stainless steel flat plate (3), the root in the right baffle-plate (2-2) of stainless steel framework (2), right baffle plate (2-3) and backboard (2-4) outside carries out single-sided welding, forms weld seam (6).Upper surface in carbon steel flat board (4) on four limits of stainless steel flat plate (3), carries out single-sided welding.
The thickness of carbon steel flat board (4) is less than the thickness 5mm of pier end face concrete cover, and its four limit is respectively greater than stainless steel flat plate (3) 20mm, and its right and left should match with the longitudinal structure reinforcing bar (7) of pier end face.
2. the preliminary treatment of pier bent cap
Assembling neoprene bearing place is being installed, the concrete cover of pier end face is being cut away, the end face of this place distributing bar (7) is exposed.At direction across bridge, the width of this cut surface is greater than the bottom width 100mm of assembling neoprene bearing steel member; Vertical bridge to, the inside edge of edge line and assembling neoprene bearing steel member coincides in this cut surface.At concrete cutting part, the concrete at each joint place of distributing bar is in length and breadth opened the spot welding of going forward side by side.
3. the assembling neoprene bearing is installed
Girder is by design load jack-up, when the assembling neoprene bearing after in place under the girder, with the steel sheet of the fritter bottom surface of twelve Earthly Branches top steel member gently, make the end face of the teflon slider bearing (1) in the stainless steel framework of steel member (2) and the bottom surface comprehensive engagement of girder.Weld at left hand edge, right hand edge and leading edge place in carbon steel flat board (4), and the distributing bar (7) of carbon steel flat board (4) with the pier top is fixed together.
Mix the cement mortar of system with ZV type concrete repair glue the concrete of being chipped around the bearing is repaired, the carbon steel flat board (4) of sealing steel member and the distributing bar at pier top make the state before this place returns to erection support.
Claims (6)
1. a highway bridge assembling neoprene bearing is characterized in that, it includes a teflon slider bearing (1) and a steel member that matches with it; Described teflon slider bearing (1) is the standardized structural element of highway bridge, and its plane is a rectangle; Described steel member is made of a stainless steel framework (2), a stainless steel flat plate (3) and a carbon steel flat board (4).
2. highway bridge assembling neoprene bearing according to claim 1, it is characterized in that, described steel member is followed successively by stainless steel framework (2), stainless steel flat plate (3) and carbon steel flat board (4) from top to bottom, and these three parts constitute an integral body by welding.
3. highway bridge assembling neoprene bearing according to claim 1; it is characterized in that; the thickness of the carbon steel flat board (4) of described steel member is less than the thickness 5mm of pier end face concrete cover, and welds together with the distributing bar (7) at pier top.
4. highway bridge assembling neoprene bearing according to claim 1 is characterized in that described stainless steel framework (2) is positioned at the top of pier end face, and described carbon steel flat board (4) is positioned at the concrete cover of pier end face.
5. highway bridge assembling neoprene bearing according to claim 1, it is characterized in that the right baffle-plate (2-2) of described stainless steel framework (2), right baffle plate (2-3) and backboard (2-4) are fixed on the upper surface of stainless steel flat plate (3) by welding; The front apron (2-1) of described stainless steel framework (2) is fixed on the leading section of right baffle-plate (2-2) and right baffle plate (2-3) by twice bolt (5).
6. highway bridge assembling neoprene bearing according to claim 1, it is characterized in that, described teflon slider bearing (1) build-in is in the stainless steel framework (2) of steel member, its end face and the comprehensive engagement of girder bottom surface, its thickness equal the spacing of girder bottom surface to stainless steel flat plate (3) upper surface of steel member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201495789U CN201116363Y (en) | 2007-06-12 | 2007-06-12 | Highway bridge assembling type rubber support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201495789U CN201116363Y (en) | 2007-06-12 | 2007-06-12 | Highway bridge assembling type rubber support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201116363Y true CN201116363Y (en) | 2008-09-17 |
Family
ID=39990936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201495789U Expired - Fee Related CN201116363Y (en) | 2007-06-12 | 2007-06-12 | Highway bridge assembling type rubber support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201116363Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288031A (en) * | 2017-08-25 | 2017-10-24 | 夏修身 | A kind of highway bridge bearing |
| CN115807383A (en) * | 2022-10-14 | 2023-03-17 | 中交公路长大桥建设国家工程研究中心有限公司 | Bridge supporting system capable of quickly replacing vulnerable component and using method |
-
2007
- 2007-06-12 CN CNU2007201495789U patent/CN201116363Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288031A (en) * | 2017-08-25 | 2017-10-24 | 夏修身 | A kind of highway bridge bearing |
| CN115807383A (en) * | 2022-10-14 | 2023-03-17 | 中交公路长大桥建设国家工程研究中心有限公司 | Bridge supporting system capable of quickly replacing vulnerable component and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20100612 |