CN110886195A - Shock insulation structure suitable for abutment rigid frame bridge and construction method - Google Patents
Shock insulation structure suitable for abutment rigid frame bridge and construction method Download PDFInfo
- Publication number
- CN110886195A CN110886195A CN201911272324.XA CN201911272324A CN110886195A CN 110886195 A CN110886195 A CN 110886195A CN 201911272324 A CN201911272324 A CN 201911272324A CN 110886195 A CN110886195 A CN 110886195A
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- abutment
- bridge
- thin
- flexible main
- structure suitable
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- 230000035939 shock Effects 0.000 title claims abstract description 17
- 238000009413 insulation Methods 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000012791 sliding layer Substances 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
Images
Classifications
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- 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
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- 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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- 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
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention relates to a shock insulation structure suitable for a rigid bridge abutment and a construction method, which comprises a thin-wall flexible main bridge abutment and a secondary bridge abutment which are arranged at intervals, wherein the secondary bridge abutment is arranged on the ground, the lower end of the thin-wall flexible main bridge abutment is provided with a bearing platform, the bearing platform is arranged at the upper end of a pile foundation, the bearing platform is provided with a notch for accommodating the lower end of the thin-wall flexible main bridge abutment, the bottom of the notch is provided with a shock insulation support for supporting the thin-wall flexible main bridge abutment, a water-proof layer is arranged between each peripheral side wall of the notch and the periphery of the lower end of the thin-wall flexible main bridge abutment, the upper part of the region enclosed by the thin-wall flexible main bridge abutment and the secondary bridge abutment is sealed by a guide beam, and the region enclosed by the thin-wall flexible main bridge abutment and the secondary bridge abutment is filled with light materials. And the earthquake response and the damage of the bridge are reduced, and the requirement of large deformation is met.
Description
Technical Field
The invention relates to a shock insulation structure suitable for a rigid frame bridge of an abutment and a construction method.
Background
The bridge has great effect, is an important social public infrastructure and has the characteristics of huge investment, strong commonality, difficult maintenance and management and the like. The bridge is not only a right structure for transporting and conveying personnel and materials in national economic activities, but also plays a very important role in rescue, rescue and recovery after earthquake damage. The bridge is honored as lifeline engineering, and it is very important to guarantee or guarantee substantially service function when it meets earthquake action. Because the severe influence caused by the severe damage and collapse of the bridge structure in the earthquake often exceeds the fund and manpower required by the bridge for reconstruction or maintenance, the research on the response and the damage form of the bridge structure in the earthquake and the improvement of the seismic capacity of the bridge are important problems in road traffic construction in China.
In addition, the bridge construction quantity increases year by year, and most of the bridges are seamed bridges, and the seamed bridges can effectively solve the problems of bridge deck cracking and the like caused by expansion and contraction deformation of the main beams due to the arrangement of the expansion joints. However, the expansion device installed at the expansion joint is exposed for a long time and is liable to cause early failure, which is not only the most vulnerable and difficult-to-repair portion of the bridge structure, but also may cause a large impact load on the vehicle, deteriorate the driving condition, and reduce the service life of the bridge.
Disclosure of Invention
The invention provides a shock insulation structure suitable for a rigid frame bridge of an abutment and a construction method.
The invention solves the technical problem by adopting a scheme that the shock insulation structure suitable for the rigid bridge abutment comprises a thin-wall flexible main abutment and a secondary abutment which are arranged at intervals, wherein the secondary abutment is arranged on the ground, the lower end of the thin-wall flexible main abutment is provided with a bearing platform, the bearing platform is arranged at the upper end of a pile foundation, a notch for accommodating the lower end of the thin-wall flexible main abutment is arranged on the bearing platform, the bottom of the notch is provided with a shock insulation support for supporting the thin-wall flexible main abutment, a water-resisting layer is arranged between the side wall of each periphery of the notch and the periphery of the lower end of the thin-wall flexible main abutment, the upper part of the region enclosed by the thin-wall flexible main abutment and the secondary abutment is sealed by a guide beam, and the region enclosed by the thin-wall flexible.
Furthermore, a main beam is arranged on one side of the leading beam, an attachment strap is arranged on the other side of the leading beam, the lower part of the connecting side of the leading beam and the attachment strap is supported by a secondary bridge abutment, the end of the main beam connected with the leading beam is supported by the upper end of the thin-wall flexible main bridge abutment, and a bracket is arranged below the leading beam at the end of the main beam connected with the leading beam.
Furthermore, an expansion joint is arranged between the guide beam and the butt strap.
Furthermore, sliding layers are arranged between the guide beam and the secondary bridge abutment and between the butt strap and the secondary bridge abutment.
Further, the pile foundation is a flexible pile foundation.
Furthermore, a waterproof layer is arranged on the upper surface of the waterproof layer.
Further, the water-resisting layer is a water-resisting bag.
A construction method of a shock insulation structure suitable for a rigid frame bridge of an abutment comprises the following steps: (1) constructing a pile foundation by adopting a method of drilling a cast-in-place pile; (2) casting a bearing platform in situ on the pile foundation; (3) a shock insulation support is arranged in the bearing platform; (4) casting a thin-wall flexible main bridge abutment on the bearing platform in situ; (5) a waterproof bag is arranged in a gap between the thin-wall flexible main bridge abutment and the bearing platform; (6) and a waterproof layer is arranged on the upper part of the waterproof bag.
Compared with the prior art, the invention has the following beneficial effects: simple structure, reasonable in design, construction convenience, easily change and shock insulation support low in cost have improved seamless bridge's shock resistance and deformability, are applicable to strong earthquake district, and reduce the destruction of earthquake response and bridge, also satisfy the needs of big deformation simultaneously.
Drawings
The invention is further described with reference to the following figures.
FIG. 1 is a schematic sectional front view of the apparatus;
fig. 2 is a schematic structural view of the platform.
In the figure: 1-a main beam; 2-a draw beam; 3-thin-walled main abutment; 4-a cushion cap; 5-pile foundation; 6-conical slope; 7-construction joint; 8-bracket; 9-expansion joint; 10-a slip layer; 11-secondary abutment; 12-a light weight material; 13-a butt strap; 14-a bolster; 15-wiring road surface; 16-backfilling; 17-waterproof bag; 18-seismic isolation bearing; 19-notch.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1-2, a seismic isolation structure suitable for a rigid bridge abutment comprises a thin-wall flexible main abutment and a secondary abutment which are arranged at intervals, wherein the secondary abutment is installed on the ground, a bearing platform is arranged at the lower end of the thin-wall flexible main abutment and is arranged at the upper end of a pile foundation, a notch for accommodating the lower end of the thin-wall flexible main abutment is arranged on the bearing platform, a seismic isolation support for supporting the thin-wall flexible main abutment is arranged at the bottom of the notch, a water-proof layer is arranged between each peripheral side wall of the notch and the periphery of the lower end of the thin-wall flexible main abutment, the upper part of the region surrounded by the thin-wall flexible main abutment and the secondary abutment is sealed through a guide beam, and a light material is filled in the region surrounded by the thin-wall flexible main abutment and the secondary abutment.
In this embodiment, a main beam is arranged on one side of the leading beam, an attachment strap is arranged on the other side of the leading beam, the lower part of the connecting side of the leading beam and the attachment strap is supported by a secondary bridge abutment, the upper end of the thin-wall flexible main bridge abutment supports the end of the main beam connected with the leading beam, and a bracket is arranged below the leading beam at the end of the main beam connected with the leading beam.
In this embodiment, the thin-wall flexible main bridge abutment, the bearing platform and the pile foundation are provided with a tapered slope near the river-crossing side, and the bearing platform and the pile foundation are provided with a tapered slope near the river-crossing side.
In this embodiment, backfill is disposed on the rear side of the secondary abutment, which is close to the side of the butt strap.
In this embodiment, an expansion joint is arranged between the draw beam and the butt strap.
In the embodiment, a sliding layer is arranged between the guide beam and the secondary bridge abutment and between the butt strap and the secondary bridge abutment.
In this embodiment, the pile foundation is a flexible pile foundation.
In this embodiment, a waterproof layer is disposed on the upper surface of the waterproof layer.
In this embodiment, the water-proof layer is a water-proof bag.
A construction method of a shock insulation structure suitable for a rigid frame bridge of an abutment comprises the following steps: (1) constructing a pile foundation by adopting a method of drilling a cast-in-place pile; (2) casting a bearing platform in situ on the pile foundation; (3) a shock insulation support is arranged in the bearing platform; (4) casting a thin-wall flexible main bridge abutment on the bearing platform in situ; (5) a waterproof bag is arranged in a gap between the thin-wall flexible main bridge abutment and the bearing platform; (6) and a waterproof layer is arranged on the upper part of the waterproof bag.
The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a shock insulation structure suitable for abutment rigid frame bridge which characterized in that: the flexible main abutment of thin wall, the secondary abutment that sets up including the interval, the secondary abutment is installed subaerial, and the flexible main abutment lower extreme of thin wall sets up the cushion cap, and the cushion cap setting is in pile foundation upper end, be provided with the notch of the flexible main abutment lower extreme of holding thin wall on the cushion cap, the notch bottom is provided with the shock insulation support who supports the flexible main abutment of thin wall, sets up the water barrier between each peripheral lateral wall of notch and the flexible main abutment lower extreme periphery of thin wall, and the flexible main abutment of thin wall seals through the drainage beam with the regional upper portion of secondary abutment wall city, and the regional intussuseption of the flexible main abutment of thin wall and secondary abutment wall is filled with the light material.
2. A seismic isolation structure suitable for a rigid-framed bridge of an abutment according to claim 1, wherein: one side of the leading beam is provided with a main beam, the other side of the leading beam is provided with an attachment strap, the lower part of the connecting side of the leading beam and the attachment strap is supported by a secondary bridge abutment, the upper end of the thin-wall flexible main bridge abutment supports the end of the main beam connected with the leading beam, and the end of the main beam connected with the leading beam is provided with a bracket below the leading beam.
3. A seismic isolation structure suitable for a rigid-framed bridge of an abutment according to claim 1, wherein: and an expansion joint is arranged between the leading beam and the butt strap.
4. A seismic isolation structure suitable for a rigid-framed bridge of an abutment according to claim 1, wherein: and sliding layers are arranged between the guide beam and the secondary abutment and between the butt strap and the secondary abutment.
5. A seismic isolation structure suitable for a rigid-framed bridge of an abutment according to claim 1, wherein: the pile foundation is a flexible pile foundation.
6. A seismic isolation structure suitable for a rigid-framed bridge of an abutment according to claim 1, wherein: and a waterproof layer is arranged on the upper surface of the waterproof layer.
7. The seismic isolation structure suitable for the abutment rigid frame bridge according to claim 6, wherein: the waterproof layer is a waterproof bag.
8. A construction method of a seismic isolation structure suitable for an abutment rigid frame bridge, which adopts the seismic isolation structure suitable for the abutment rigid frame bridge as claimed in any one of claims 1 to 7, characterized by comprising the following steps: (1) constructing a pile foundation by adopting a method of drilling a cast-in-place pile; (2) casting a bearing platform in situ on the pile foundation; (3) a shock insulation support is arranged in the bearing platform; (4) casting a thin-wall flexible main bridge abutment on the bearing platform in situ; (5) a waterproof bag is arranged in a gap between the thin-wall flexible main bridge abutment and the bearing platform; (6) and a waterproof layer is arranged on the upper part of the waterproof bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911272324.XA CN110886195A (en) | 2019-12-12 | 2019-12-12 | Shock insulation structure suitable for abutment rigid frame bridge and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911272324.XA CN110886195A (en) | 2019-12-12 | 2019-12-12 | Shock insulation structure suitable for abutment rigid frame bridge and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110886195A true CN110886195A (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911272324.XA Pending CN110886195A (en) | 2019-12-12 | 2019-12-12 | Shock insulation structure suitable for abutment rigid frame bridge and construction method |
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| Country | Link |
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| CN (1) | CN110886195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749112A (en) * | 2020-07-30 | 2020-10-09 | 福州大学 | Large-span integral bridge suitable for strong earthquake region and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203451995U (en) * | 2013-09-09 | 2014-02-26 | 上海汇城建筑装饰有限公司 | Rubber anti-shocking comb plate stretching device |
| CN108547218A (en) * | 2018-06-14 | 2018-09-18 | 福州大学 | The construction and its construction method of abutment rigid frame bridge |
| CN108589523A (en) * | 2018-07-13 | 2018-09-28 | 山东省交通规划设计院 | A kind of bridge shock reducing guard rail pedestal and working method |
| CN208105022U (en) * | 2018-04-03 | 2018-11-16 | 中国建筑第五工程局有限公司 | Assembled bridge pier and prefabricated assembled beam bridge |
| KR20190091896A (en) * | 2018-01-30 | 2019-08-07 | 정하익 | Eco outputting, equipment, material, manufacture, construction, method, facility, building, structure |
| CN211645945U (en) * | 2019-12-12 | 2020-10-09 | 福州大学 | Shock insulation structure suitable for abutment rigid frame bridge |
-
2019
- 2019-12-12 CN CN201911272324.XA patent/CN110886195A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203451995U (en) * | 2013-09-09 | 2014-02-26 | 上海汇城建筑装饰有限公司 | Rubber anti-shocking comb plate stretching device |
| KR20190091896A (en) * | 2018-01-30 | 2019-08-07 | 정하익 | Eco outputting, equipment, material, manufacture, construction, method, facility, building, structure |
| CN208105022U (en) * | 2018-04-03 | 2018-11-16 | 中国建筑第五工程局有限公司 | Assembled bridge pier and prefabricated assembled beam bridge |
| CN108547218A (en) * | 2018-06-14 | 2018-09-18 | 福州大学 | The construction and its construction method of abutment rigid frame bridge |
| CN108589523A (en) * | 2018-07-13 | 2018-09-28 | 山东省交通规划设计院 | A kind of bridge shock reducing guard rail pedestal and working method |
| CN211645945U (en) * | 2019-12-12 | 2020-10-09 | 福州大学 | Shock insulation structure suitable for abutment rigid frame bridge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749112A (en) * | 2020-07-30 | 2020-10-09 | 福州大学 | Large-span integral bridge suitable for strong earthquake region and construction method |
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