CN114045744A - Anti-empty bridge support and bridge adopting same - Google Patents
Anti-empty bridge support and bridge adopting same Download PDFInfo
- Publication number
- CN114045744A CN114045744A CN202111443309.4A CN202111443309A CN114045744A CN 114045744 A CN114045744 A CN 114045744A CN 202111443309 A CN202111443309 A CN 202111443309A CN 114045744 A CN114045744 A CN 114045744A
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- support
- steel plate
- bridge
- double
- annular sealing
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 124
- 239000010959 steel Substances 0.000 claims abstract description 124
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 239000000872 buffer Substances 0.000 claims abstract description 25
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 239000004575 stone Substances 0.000 claims description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 7
- 230000035882 stress Effects 0.000 description 7
- 230000008093 supporting effect Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 239000006173 Good's buffer Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
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
- E01D19/041—Elastomeric bearings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/40—Plastics
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an anti-falling bridge support which comprises an upper support steel plate, a lower support steel plate, a double-layer annular sealing steel plate, a buffering component and an elastic component, wherein the upper support steel plate is arranged on the upper support; the upper steel plate of the support is fixed on the beam body of the upper structure of the bridge; the lower steel plate of the support is fixed on the lower structure of the bridge; the lower end of the double-layer annular sealing steel plate is fixed on the lower steel plate of the support, and a gap is formed between the upper end of the double-layer annular sealing steel plate and the upper steel plate of the support; the buffer component is arranged in the inner ring of the double-layer annular sealing steel plate, one end of the buffer component is fixed with the lower steel plate of the support, and the other end of the buffer component has a gap with the upper steel plate of the support; the elastic component is tightly attached to the inner steel plate and the outer steel plate of the double-layer annular sealing steel plate, the upper end of the elastic component is fixedly connected with the upper steel plate of the support, and the lower end of the elastic component is fixedly connected with the lower steel plate of the support. The invention also discloses a bridge adopting the anti-empty bridge bearing. The invention can prevent the support from being empty, so that the upper structure of the bridge is always in a supported state, the safety of the bridge structure is ensured, and the normal use of the bridge structure is ensured.
Description
Technical Field
The invention belongs to the technical field of bridge construction, and particularly relates to an anti-empty bridge support and a bridge adopting the same.
Background
The bridge support is an important structural component for connecting an upper structure and a lower structure of a bridge, is positioned between the bridge and the padstone, can reliably transfer load and deformation (displacement and corner) borne by the upper structure of the bridge to the lower structure of the bridge, is an important force transfer device of the bridge, and plays an important role in normal use of the bridge.
Because the roof beam body atress is crooked, support bed stone roughness and intensity are not enough, horizontal support is more, various reasons such as superstructure atress is hyperstatic, the support often appears the phenomenon of coming to nothing in installation and use. Bridge bearing support void is common in bridge engineering and is a serious disease. If the girder body and the support of bridge break away from the phenomenon, will change superstructure's stress system, reduce the life of bridge, go on for a long time, can produce the girder body and cut the destruction, damage the girder body, influence driving safety.
At present, effective countermeasures for preventing the support from being empty are lacked. In case the support takes place to take place to the sky, usually change the support that has taken place to taking place to the sky, need interrupt the traffic during the change, the jacking roof beam body, pour the support stone underlay again, and it is higher to change the support cost, and the construction cycle is long, and social effect is great, and when the support takes place to take place to the support sky, the damage that usually causes superstructure has taken place.
Therefore, it is necessary to design an anti-empty bridge support to ensure safety.
Disclosure of Invention
The invention aims to provide an anti-disengaging bridge support and a bridge adopting the support, so that the support is prevented from disengaging, the upper structure of the bridge is always in a supported state, the safety of the bridge structure is ensured, and the normal use of the bridge structure is ensured.
The technical scheme adopted by the invention is as follows:
an anti-empty-falling bridge support is arranged between a bridge upper structure beam body and a bridge lower structure and comprises a support upper steel plate, a support lower steel plate, a double-layer annular sealing steel plate, a buffering part and an elastic part;
the support upper steel plate is fixed on the bridge upper structure beam body;
the lower steel plate of the support is fixed on the lower part structure of the bridge;
the double-layer annular sealing steel plate is arranged between the upper support steel plate and the lower support steel plate, the lower end of the double-layer annular sealing steel plate is fixed on the lower support steel plate, and a gap is formed between the upper end of the double-layer annular sealing steel plate and the upper support steel plate;
the buffer component is arranged in the inner ring of the double-layer annular sealing steel plate, one end of the buffer component is fixed with the lower steel plate of the support, and the other end of the buffer component has a gap with the upper steel plate of the support;
the elastic component is arranged between the double-layer annular sealing steel plates and is tightly attached to the inner steel plate and the outer steel plate of the double-layer annular sealing steel plates; the upper end of the elastic component is fixedly connected with the upper steel plate of the support, and the lower end of the elastic component is fixedly connected with the lower steel plate of the support.
According to the scheme, the limiting steel plates are arranged around the steel plates on the support according to the displacement requirement of the bridge, so that the longitudinal and transverse displacement of the bridge is limited, and the phenomenon of preventing the bridge from being empty is prevented.
According to the scheme, the support base cushion stone is arranged below the lower steel plate of the support base, so that the whole support base structure is more stable.
According to the scheme, the elastic component is a compression spring, and the technical parameters of the elastic component are adaptive to the counter force of the upper structure. The compression spring is in a compressed state after the support is installed, and the stress of the compression spring is 0.6-0.9 times, preferably 0.8 times, of the dead load counter force of the beam body of the upper structure of the bridge, so that the spring has a good supporting effect and can also have an anti-disengaging effect.
According to the scheme, the buffer component is made of polytetrafluoroethylene so as to ensure good buffer performance, and buffers the force transmitted by the upper structure beam body and the lower structure of the bridge so as to ensure the stability of the whole structure and prevent the support from being empty.
According to the scheme, anchor bolts are arranged around the lower steel plate of the support, the lower steel plate of the support is fixed on the support cushion through the anchor bolts, the support cushion is convenient to fix, and the bearing force is conveniently transmitted to the lower structure of the bridge through the anchor bolts, so that the whole structure is more stable.
According to the scheme, the thicknesses of the upper steel plate of the support and the lower steel plate of the support are 20-40mm, so that the rigidity and the strength of the whole support are ensured.
The invention also provides a bridge which adopts the anti-empty bridge support.
The invention has the beneficial effects that:
the anti-separation bridge consists of an upper support steel plate, a lower support steel plate and an anti-separation support system (a double-layer annular sealing steel plate, a buffer component and an elastic component), has simple and reasonable structure and strong durability, and ensures the safety of a bridge structure;
the anti-disengaging support system consisting of the double-layer annular sealing steel plate, the buffer component and the elastic component can effectively prevent the bridge support from disengaging; the upper structure of the bridge is always in a supported state, so that the safety of the bridge structure is ensured, and the normal use of the bridge structure is ensured;
the steel plate on the support is always in a pressure-bearing state in a normal working state, and when the support is empty, the anti-empty support system can effectively play a role, so that the steel plate on the support continues to support the girder of the upper structure, the stress condition of the girder is kept unchanged, various diseases caused by the empty support are effectively prevented, the normal use of the bridge is ensured, and the service life of the bridge is prolonged;
an elastic supporting system is formed by the buffer component and the elastic component, so that the elastic supporting system can effectively cope with complex working conditions such as earthquake, ship collision and the like, and has strong self-adaptive capacity;
by arranging double layers of annular sealing steel plates, one is used for separating, and the other is used for restraining transverse displacement;
the purpose of filling a buffer component (polytetrafluoroethylene) in the double-layer annular sealing steel plate is to play a buffer role and prevent the support from being empty due to stress;
the elastic component (compression spring) is tightly attached to the two steel plates of the double-layer annular sealing steel plate, and the elastic component (compression spring) is used for transferring the force transferred by the upper steel plate of the support and the lower steel plate of the support to ensure that the support moves longitudinally;
the elastic component (compression spring) is respectively connected with the upper steel plate and the lower steel plate of the support, so that the support has the supporting function, the force transmission function and the support is prevented from being hollow;
the purpose of the double-layer annular sealing steel plate and the gap between the upper end of the buffer component and the steel plate on the support is to prevent the support from being separated.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural view of an anti-empty bridge support;
FIG. 2 is a schematic view of a connection structure of a lower steel plate of a support, an elastic component, a buffer component and a double-layer annular sealing steel plate;
in the figure: 1-a bridge superstructure beam body; 2-steel plate on the support; 3-limiting a steel plate; 4-a cushioning component; 5-double-layer annular sealing steel plates; 6-an elastic member; 7-lower steel plate of support; 8-anchor bolts; 9-support base stone; 10-bridge substructure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Referring to fig. 1 and 2, the anti-empty bridge support is arranged between a bridge upper structure beam body 1 and a bridge lower structure 10 and comprises a support upper steel plate 2, a support lower steel plate 7, a support base cushion stone 9, a double-layer annular sealing steel plate 5, a buffer part 4 and an elastic part 6. The support upper steel plate 2 is fixed on the bridge upper structure beam body 1; and anchor bolts 8 are arranged around the lower steel plate 7 of the support, the lower steel plate 7 of the support is fixed on a support cushion stone 9 by the anchor bolts 8, and the support cushion stone 9 is fixed on a bridge lower part structure 10. The double-layer annular sealing steel plate 5 is arranged between the support upper steel plate 2 and the support lower steel plate 7, the lower end of the double-layer annular sealing steel plate is fixed on the support lower steel plate 7, and a gap is reserved between the upper end of the double-layer annular sealing steel plate and the support upper steel plate 2. The buffer component 4 is filled in the inner ring of the double-layer annular sealing steel plate 5, one end of the buffer component is fixed with the lower steel plate 7 of the support, and a gap is reserved between the other end of the buffer component and the upper steel plate 2 of the support; in the present embodiment, the cushion member 4 is made of polytetrafluoroethylene, but it is needless to say that other members having a cushion function may be used as long as the force can be cushioned. The elastic component 6 is arranged between the double-layer annular sealing steel plates 5 and is tightly attached to the inner steel plate and the outer steel plate of the double-layer annular sealing steel plates 5, the upper end of the elastic component 6 is welded with the upper support steel plate 2, and the lower end of the elastic component 6 is welded with the lower support steel plate 7; the compression spring is in a compressed state after the support is installed, and the stress of the compression spring is 0.8 times of the constant load counter force of the upper structure beam body of the bridge; the elastic member may be other members having an elastic function as long as the support, the force transmission, and the anti-backlash function are provided.
Before the support is installed, the compression spring is in an original uncompressed state; after the support is installed in place, the support is subjected to load transfer by the upper structure, and the compression spring is in a normal stress state. When the external stress environment changes, the polytetrafluoroethylene buffers the force, the compression spring can exert elastic force to jack up the upper steel plate of the support, so that the upper steel plate of the support is always attached to the bottom of the beam and is supported by the spring, the stress of the upper structure is basically unchanged, and the occurrence of the void condition is prevented.
Example 2
What is different from embodiment 1 is that, for the great restriction bridge vertical and horizontal displacement, prevent to indulge transversely and appear too big displacement, prevent the emergence of anti-disengaging phenomenon, can set up spacing steel sheet 3 around steel sheet 2 on the support according to the bridge displacement requirement.
In the invention, the thicknesses of the upper support steel plate 2 and the lower support steel plate 7 are 20-40 mm.
Example 3
A bridge is provided, which adopts the anti-empty bridge support in the embodiment 1 or the embodiment 2.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides an anticreep sky bridge support which characterized in that: the anti-empty-falling bridge support is arranged between a bridge upper structure beam body and a bridge lower structure and comprises a support upper steel plate, a support lower steel plate, a double-layer annular sealing steel plate, a buffer part and an elastic part;
the support upper steel plate is fixed on the bridge upper structure beam body;
the lower steel plate of the support is fixed on the lower part structure of the bridge;
the double-layer annular sealing steel plate is arranged between the upper support steel plate and the lower support steel plate, the lower end of the double-layer annular sealing steel plate is fixed on the lower support steel plate, and a gap is formed between the upper end of the double-layer annular sealing steel plate and the upper support steel plate;
the buffer component is arranged in the inner ring of the double-layer annular sealing steel plate, one end of the buffer component is fixed with the lower steel plate of the support, and the other end of the buffer component has a gap with the upper steel plate of the support;
the elastic component is arranged between the double-layer annular sealing steel plates and is tightly attached to the inner steel plate and the outer steel plate of the double-layer annular sealing steel plates; the upper end of the elastic component is fixedly connected with the upper steel plate of the support, and the lower end of the elastic component is fixedly connected with the lower steel plate of the support.
2. The anti-empty bridge support of claim 1, wherein: and limiting steel plates are arranged around the steel plate on the support.
3. The anti-empty bridge support of claim 1, wherein: and a support base cushion stone is arranged below the lower steel plate of the support base.
4. The anti-empty bridge support of claim 1, wherein: the elastic component is a compression spring.
5. The anti-empty bridge support of claim 4, wherein: the compression spring is in a compressed state after the support is installed, and the stress of the compression spring is 0.6-0.9 times of the dead load counter force of the beam body of the upper structure of the bridge.
6. The anti-empty bridge support of claim 5, wherein: the compression spring is in a compressed state after the support is installed, and the stress of the compression spring is 0.8 times of the constant load counter force of the upper structure beam body of the bridge.
7. The anti-empty bridge support of claim 1, wherein: the buffer component is made of polytetrafluoroethylene.
8. The anti-empty bridge support of claim 3, wherein: and anchor bolts are arranged around the lower steel plate of the support and fix the lower steel plate of the support on the support cushion.
9. The anti-empty bridge support of claim 1, wherein: the thickness of the upper steel plate of the support and the thickness of the lower steel plate of the support are 20-40 mm.
10. A bridge, characterized in that: the bridge adopts the anti-empty bridge support saddle of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111443309.4A CN114045744A (en) | 2021-11-30 | 2021-11-30 | Anti-empty bridge support and bridge adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111443309.4A CN114045744A (en) | 2021-11-30 | 2021-11-30 | Anti-empty bridge support and bridge adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114045744A true CN114045744A (en) | 2022-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111443309.4A Pending CN114045744A (en) | 2021-11-30 | 2021-11-30 | Anti-empty bridge support and bridge adopting same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114045744A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990053001A (en) * | 1997-12-23 | 1999-07-15 | 김기중 | Chair unit with improved seismic performance |
| JP2001303516A (en) * | 2000-04-19 | 2001-10-31 | Tokai Rubber Ind Ltd | Shift restriction device for bridge |
| CN101761029A (en) * | 2009-12-11 | 2010-06-30 | 招商局重庆交通科研设计院有限公司 | Sliding lead-core shock absorption and insulation rubber support for bridge |
| CN201635000U (en) * | 2010-01-21 | 2010-11-17 | 安徽省交通规划设计研究院 | High-damping and isolating plate-type bridge bearing |
| CN108086142A (en) * | 2017-12-28 | 2018-05-29 | 中交公路养护工程技术有限公司 | A kind of enclosure-type girder falling laminated rubber bearing |
| CN207608812U (en) * | 2017-12-19 | 2018-07-13 | 山西省交通规划勘察设计院 | A kind of anti-device that comes to nothing of laminated rubber bearing |
| CN210975508U (en) * | 2019-03-20 | 2020-07-10 | 许斌彬 | Combined damping support for highway bridge |
| CN211547309U (en) * | 2020-01-09 | 2020-09-22 | 吴宽 | Multistage damping support of bridge |
| CN211815536U (en) * | 2019-05-31 | 2020-10-30 | 武汉市市政建设集团有限公司 | Damping support for road and bridge |
| CN213772910U (en) * | 2020-10-20 | 2021-07-23 | 山东科技大学 | Bridge beam supports with cushioning effect |
-
2021
- 2021-11-30 CN CN202111443309.4A patent/CN114045744A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990053001A (en) * | 1997-12-23 | 1999-07-15 | 김기중 | Chair unit with improved seismic performance |
| JP2001303516A (en) * | 2000-04-19 | 2001-10-31 | Tokai Rubber Ind Ltd | Shift restriction device for bridge |
| CN101761029A (en) * | 2009-12-11 | 2010-06-30 | 招商局重庆交通科研设计院有限公司 | Sliding lead-core shock absorption and insulation rubber support for bridge |
| CN201635000U (en) * | 2010-01-21 | 2010-11-17 | 安徽省交通规划设计研究院 | High-damping and isolating plate-type bridge bearing |
| CN207608812U (en) * | 2017-12-19 | 2018-07-13 | 山西省交通规划勘察设计院 | A kind of anti-device that comes to nothing of laminated rubber bearing |
| CN108086142A (en) * | 2017-12-28 | 2018-05-29 | 中交公路养护工程技术有限公司 | A kind of enclosure-type girder falling laminated rubber bearing |
| CN210975508U (en) * | 2019-03-20 | 2020-07-10 | 许斌彬 | Combined damping support for highway bridge |
| CN211815536U (en) * | 2019-05-31 | 2020-10-30 | 武汉市市政建设集团有限公司 | Damping support for road and bridge |
| CN211547309U (en) * | 2020-01-09 | 2020-09-22 | 吴宽 | Multistage damping support of bridge |
| CN213772910U (en) * | 2020-10-20 | 2021-07-23 | 山东科技大学 | Bridge beam supports with cushioning effect |
Non-Patent Citations (1)
| Title |
|---|
| 申爱国: "《桥梁工程施工技术》", 30 November 2016, 武汉大学出版社, pages: 130 - 131 * |
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