CN201746774U - Cable-stayed bridge cable tower anchorage zone steel bracket with assembled anchoring device - Google Patents
Cable-stayed bridge cable tower anchorage zone steel bracket with assembled anchoring device Download PDFInfo
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- CN201746774U CN201746774U CN2010202724429U CN201020272442U CN201746774U CN 201746774 U CN201746774 U CN 201746774U CN 2010202724429 U CN2010202724429 U CN 2010202724429U CN 201020272442 U CN201020272442 U CN 201020272442U CN 201746774 U CN201746774 U CN 201746774U
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- embedded steel
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- anchorage zone
- stayed bridge
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Abstract
The utility model discloses a cable-stayed bridge cable tower anchorage zone steel bracket with an assembled anchoring device, which comprises a top plate, a support plate and a pre-embedded steel plate. The top plate is horizontal while the pre-embedded steel plate is vertically disposed along the cable tower. The top plate, the support plate and the pre-embedded steel plate are vertically welded with one another. On the pre-embedded steel plate is transversely provided an assembled anchoring device which is composed of a pre-stressed anchoring device and shear studs or shear connectors. The pre-stressed anchoring device comprises a pre-embedded steel pipe whose two ends are each provided with an anchoring part. And the pre-embedded steel pipe is inside provided with a pre-stressed steel bar which runs through the pre-embedded steel plate. By equipping an assembled anchoring device on the pre-embedded steel plate of the steel bracket, the utility model is enabled to generate a prestress with appropriate tension which makes the shear studs bear all the shear force and the pre-stressed steel bar bear all the pulling force in the anchorage zone. Therefore, the pre-embedded steel plate and the concrete are ensured not to be disengaging, which improves the use safety of the cable-stayed bridge. The utility model is suitable not only for the cable-stayed bridge cable tower anchorage zone steel bracket but also for other bridge constructions.
Description
Technical field
The utility model belongs to bridge and makes up the manufacturing technology field, is specifically related to a kind of Anchorage Zone of Cable-stayed Bridge Pylon steel corbel with the combination anchor device.
Background technology
At present, long span stayed-cable bridge oblique tensile tower end anchoring structure has three kinds of modes such as ring orientation prestress, steel anchor box and the anchoring of steel anchor beam.Steel anchor beam anchorage style is that the steel anchor beam is supported on the vertical bracket of hollow king-post tower wall, comes balance both sides drag-line horizontal force by the steel anchor beam, and tower wall concrete only bears out-of-balance force, so it is stressed clear and definite, the anchorage zone concrete stress is little, but concrete bracket speed of application is slow, and steel anchor beam inconvenience is installed.
For this reason, the inventor had once proposed a kind of steel corbel and steel anchor beam composite set in utility model patent ZL200720107377.2 and patent of invention ZL200710067627.9, promptly adopt steel corbel to replace traditional concrete bracket in the Sarasota anchorage zone, integral hoisting behind steel corbel and the steel anchor beam temporary consolidation, the installation accuracy height; Adopt the pre-embedded steel slab of vertical elongated setting to utilize slding form operation easily, increase substantially speed of application.
Usually adopt WELDING STUDS or PBL shear connector for the anchoring between pre-embedded steel slab and the concrete towers wall in above-mentioned two patents, WELDING STUDS or PBL shear connector are mainly used in the opposing vertical shear.The defective of this patent is, when being applied to long span stayed-cable bridge, near the WELDING STUDS the top board of steel corbel also needs to bear huge pulling force when bearing vertical shear, and local pre-embedded steel slab and concrete are come to nothing, cause the waste of construction material, reduce the safety in utilization of cable stayed bridge.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of Anchorage Zone of Cable-stayed Bridge Pylon steel corbel with the combination anchor device.
A kind of Anchorage Zone of Cable-stayed Bridge Pylon steel corbel with the combination anchor device comprises top board, gripper shoe and pre-embedded steel slab, and top board is horizontal, and pre-embedded steel slab is along the vertical elongated layout of Sarasota, the orthogonal in twos welding of top board, gripper shoe and pre-embedded steel slab; Laterally be provided with the combination anchor device on the described pre-embedded steel slab, the combination anchor device comprises some prestressed anchor fixing apparatus and WELDING STUDS or some prestressed anchor fixing apparatus and PBL shear connector; WELDING STUDS or PBL shear connector and prestressed anchor fixing apparatus all are located at the homonymy of pre-embedded steel slab;
Described prestressed anchor fixing apparatus is made up of embedded steel tube, prestressed reinforcement and anchoring piece, and prestressed reinforcement places in the embedded steel tube and runs through pre-embedded steel slab, and the two ends of embedded steel tube respectively are provided with an anchoring piece.
Described prestressed reinforcement does not contact with concrete owing to be located in the embedded steel tube, its role is to guarantee that described prestressed reinforcement only bears whole pulling force of anchorage zone, and does not bear vertical shear.
Because the pulling force maximum that near the WELDING STUDS the steel corbel top board is born, the easiest pre-embedded steel slab and the concrete of part of causing comes to nothing, so no-cohesive prestressed reinforcement is mainly concentrated the tensile region be located near the WELDING STUDS steel corbel top board, guarantee that WELDING STUDS do not bear pulling force.
Described anchoring piece comprises nut and pad, forms hermetically sealed chamber between pad and the embedded steel tube, and intra-bladder instillation has anticorrosion grease, can ensure the lubricated of prestressed anchor fixing apparatus, and antirust, anticorrosion.
Be with protective cover on the described close anchoring piece of pre-embedded steel slab one end, this anchoring piece and protective cover are all detachable, are convenient to check prestressed reinforcement and change anticorrosion grease.
Anchorage Zone of Cable-stayed Bridge Pylon steel corbel of the present utility model, by the combination anchor device is set on the pre-embedded steel slab of steel corbel, the stretch-draw appropriate pre _ stress, make WELDING STUDS bear whole shearings, prestressed reinforcement bears whole pulling force of anchorage zone, guarantee that steel corbel pre-embedded steel slab and concrete can not come to nothing, and have improved the safety in utilization of cable stayed bridge.
The combination anchor device of the utility model steel corbel goes for the steel corbel of Anchorage Zone of Cable-stayed Bridge Pylon, also in the construction applicable to other bridge.
Description of drawings
Fig. 1 is the structural representation of the Anchorage Zone of Cable-stayed Bridge Pylon steel corbel of the utility model band combination anchor device.
Fig. 2 is the structural representation of prestressed anchor fixing apparatus among Fig. 1.
The specific embodiment
As shown in Figure 1, the Anchorage Zone of Cable-stayed Bridge Pylon steel corbel of the utility model band combination anchor device comprises top board 1, gripper shoe 2 and pre-embedded steel slab 3, and top board 1 is horizontal, pre-embedded steel slab 3 is along the vertical elongated layout of Sarasota, the orthogonal in twos welding of top board 1, gripper shoe 2 and pre-embedded steel slab 3; Laterally be provided with the combination anchor device on the back side of pre-embedded steel slab 3, the combination anchor device comprises nine WELDING STUDS 4 and two prestressed anchor fixing apparatus 5, and WELDING STUDS 4 also can replace to the PBL shear connector; WELDING STUDS 4 and prestressed anchor fixing apparatus 5 all are located at the homonymy of pre-embedded steel slab 3.
As shown in Figure 2, prestressed anchor fixing apparatus 5 comprises embedded steel tube 6, the two ends of embedded steel tube 6 respectively are provided with an anchoring piece, away from pre-embedded steel slab 3 one ends are anchoring piece 7a, near pre-embedded steel slab 3 one ends are anchoring piece 7b, be provided with the prestressed reinforcement 8 that runs through pre-embedded steel slab 3 in the embedded steel tube 6, prestressed reinforcement 8 does not contact with concrete; Also be provided with spiral bar 11 on one end of embedded steel tube 6.
Anchoring piece comprises nut and pad, is provided with sealing ring between the end of pad and embedded steel tube 6, also is provided with sealing ring between the other end of embedded steel tube 6 and the pre-embedded steel slab, forms hermetically sealed chamber, and intra-bladder instillation has anticorrosion grease 9.
Be with protective cover 10 on the anchoring piece 7b, also be provided with gasket seal between protective cover 10 and the pre-embedded steel slab 3, anchoring piece 7b and protective cover 10 are all detachable.
During work, WELDING STUDS 4 is welded on the pre-embedded steel slab 3, steel corbel is after the Sarasota anchorage zone is in place, tensile region near colligation Sarasota concrete reinforcement while WELDING STUDS 4 steel corbel top board 1, the pre-buried part of arrangement prestress anchor device 5, pour into a mould tower wall concrete then, assurance concrete and pre-embedded steel slab 3 are combined closely, and Transfer of Shear; After concrete strength reached designing requirement, stretch-draw prestressing force made prestressed reinforcement 8 can bear whole pulling force of anchorage zone, guaranteed that concrete and pre-embedded steel slab 3 can not come to nothing; Behind the prestressed reinforcement of tensioning 8, screw and sealing off and covering anchorage, pour into anticorrosion grease 9 in the hermetically sealed chamber that between the pad of anchoring piece 7a and embedded steel tube 6, forms, screw prestressed reinforcement 8 with anchoring piece 7b again, protective cover 10 is installed at last with anchoring piece 7a.
Claims (3)
1. Anchorage Zone of Cable-stayed Bridge Pylon steel corbel with the combination anchor device, comprise top board, gripper shoe and pre-embedded steel slab, top board is horizontal, pre-embedded steel slab is along the vertical elongated layout of Sarasota, the orthogonal in twos welding of top board, gripper shoe and pre-embedded steel slab, it is characterized in that, laterally be provided with the combination anchor device on the described pre-embedded steel slab, the combination anchor device comprises some prestressed anchor fixing apparatus and WELDING STUDS or prestressed anchor fixing apparatus and PBL shear connector;
Described prestressed anchor fixing apparatus is made up of embedded steel tube, prestressed reinforcement and anchoring piece, and prestressed reinforcement places in the embedded steel tube and runs through pre-embedded steel slab, and the two ends of embedded steel tube respectively are provided with an anchoring piece.
2. the Anchorage Zone of Cable-stayed Bridge Pylon steel corbel of band combination anchor device according to claim 1 is characterized in that described anchoring piece comprises nut and pad, forms hermetically sealed chamber, the anticorrosion grease of intra-bladder instillation between pad and the embedded steel tube.
3. the Anchorage Zone of Cable-stayed Bridge Pylon steel corbel of band combination anchor device according to claim 1 is characterized in that, and is described near the protective cover that is with flexible connection on the anchoring piece of pre-embedded steel slab one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202724429U CN201746774U (en) | 2010-07-27 | 2010-07-27 | Cable-stayed bridge cable tower anchorage zone steel bracket with assembled anchoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202724429U CN201746774U (en) | 2010-07-27 | 2010-07-27 | Cable-stayed bridge cable tower anchorage zone steel bracket with assembled anchoring device |
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| Publication Number | Publication Date |
|---|---|
| CN201746774U true CN201746774U (en) | 2011-02-16 |
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| CN2010202724429U Expired - Lifetime CN201746774U (en) | 2010-07-27 | 2010-07-27 | Cable-stayed bridge cable tower anchorage zone steel bracket with assembled anchoring device |
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| CN (1) | CN201746774U (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425113A (en) * | 2011-12-05 | 2012-04-25 | 中国建筑第六工程局有限公司 | Horizontal pre-jacking force application method for 1,000t pagoda-type concrete bridge tower |
| CN102733544A (en) * | 2012-06-28 | 2012-10-17 | 华汇工程设计集团股份有限公司 | Pretension prestress composite beam prefabricated component having gaps and corbels |
| CN103061261A (en) * | 2013-01-25 | 2013-04-24 | 安徽省交通投资集团有限责任公司 | Anchor pulling plate component for concrete girder of cable-stayed bridge |
| CN103556823A (en) * | 2013-10-28 | 2014-02-05 | 山西省第二建筑工程公司 | Construction method with silo sliding formwork operating platform as top cover plate formwork supporting system |
| CN104088228A (en) * | 2014-07-24 | 2014-10-08 | 中建三局集团有限公司 | Method for exerting pre-stress to bracket-free steel anchor beam in electrically-heating mode |
| CN104947796A (en) * | 2015-07-08 | 2015-09-30 | 无锡顺达智能自动化工程股份有限公司 | Adjustable bracket structure |
| CN107100081A (en) * | 2017-06-15 | 2017-08-29 | 中铁十六局集团第三工程有限公司 | A kind of Sarasota crossbeam installs supporting construction |
| CN108330831A (en) * | 2018-03-13 | 2018-07-27 | 中交公路规划设计院有限公司 | Steel locker format Suo-tower connection structure and preparation method thereof |
| CN109403456A (en) * | 2018-12-20 | 2019-03-01 | 中铁五局集团路桥工程有限责任公司 | A kind of steel corbel pre-buried structure and its construction method |
| CN109914248A (en) * | 2019-03-10 | 2019-06-21 | 中交四公局第六工程有限公司 | Main cable saddle of suspension bridge pre-stress type pushing method |
| CN109972528A (en) * | 2019-04-24 | 2019-07-05 | 中铁十一局集团第一工程有限公司 | A kind of cable-stayed bridge leaning tower lower beam support shear key |
| CN110154228A (en) * | 2019-05-18 | 2019-08-23 | 陕西建工第五建设集团有限公司 | A kind of cast-in-place pre-buried board positioning method of face bracket |
| CN110438902A (en) * | 2019-07-16 | 2019-11-12 | 中交一公局第二工程有限公司 | A kind of assembled load-bearing bracket |
| CN114837066A (en) * | 2022-05-19 | 2022-08-02 | 保利长大工程有限公司 | High-altitude cable tower beam construction bracket with external prestress and installation method |
| CN114941283A (en) * | 2022-05-31 | 2022-08-26 | 中交路桥建设有限公司 | Bearing bracket |
-
2010
- 2010-07-27 CN CN2010202724429U patent/CN201746774U/en not_active Expired - Lifetime
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425113B (en) * | 2011-12-05 | 2013-07-31 | 中国建筑第六工程局有限公司 | Horizontal pre-jacking force application method for 1,000t pagoda-type concrete bridge tower |
| CN102425113A (en) * | 2011-12-05 | 2012-04-25 | 中国建筑第六工程局有限公司 | Horizontal pre-jacking force application method for 1,000t pagoda-type concrete bridge tower |
| CN102733544B (en) * | 2012-06-28 | 2014-12-10 | 华汇工程设计集团股份有限公司 | Pretension prestress composite beam prefabricated component having gaps and corbels |
| CN102733544A (en) * | 2012-06-28 | 2012-10-17 | 华汇工程设计集团股份有限公司 | Pretension prestress composite beam prefabricated component having gaps and corbels |
| CN103061261A (en) * | 2013-01-25 | 2013-04-24 | 安徽省交通投资集团有限责任公司 | Anchor pulling plate component for concrete girder of cable-stayed bridge |
| CN103061261B (en) * | 2013-01-25 | 2014-10-01 | 安徽省交通投资集团有限责任公司 | Anchor pulling plate component for concrete girder of cable-stayed bridge |
| CN103556823B (en) * | 2013-10-28 | 2016-04-13 | 山西二建集团有限公司 | The construction method of lamina tecti form bracing system made by silo sliding formwork operating platform |
| CN103556823A (en) * | 2013-10-28 | 2014-02-05 | 山西省第二建筑工程公司 | Construction method with silo sliding formwork operating platform as top cover plate formwork supporting system |
| CN104088228A (en) * | 2014-07-24 | 2014-10-08 | 中建三局集团有限公司 | Method for exerting pre-stress to bracket-free steel anchor beam in electrically-heating mode |
| CN104088228B (en) * | 2014-07-24 | 2016-04-13 | 中建三局集团有限公司 | Without the method for bracket steel anchor beam electrical heating Shi Hanzhang |
| CN104947796A (en) * | 2015-07-08 | 2015-09-30 | 无锡顺达智能自动化工程股份有限公司 | Adjustable bracket structure |
| CN107100081A (en) * | 2017-06-15 | 2017-08-29 | 中铁十六局集团第三工程有限公司 | A kind of Sarasota crossbeam installs supporting construction |
| CN108330831A (en) * | 2018-03-13 | 2018-07-27 | 中交公路规划设计院有限公司 | Steel locker format Suo-tower connection structure and preparation method thereof |
| CN109403456A (en) * | 2018-12-20 | 2019-03-01 | 中铁五局集团路桥工程有限责任公司 | A kind of steel corbel pre-buried structure and its construction method |
| CN109914248A (en) * | 2019-03-10 | 2019-06-21 | 中交四公局第六工程有限公司 | Main cable saddle of suspension bridge pre-stress type pushing method |
| CN109972528A (en) * | 2019-04-24 | 2019-07-05 | 中铁十一局集团第一工程有限公司 | A kind of cable-stayed bridge leaning tower lower beam support shear key |
| CN110154228A (en) * | 2019-05-18 | 2019-08-23 | 陕西建工第五建设集团有限公司 | A kind of cast-in-place pre-buried board positioning method of face bracket |
| CN110438902A (en) * | 2019-07-16 | 2019-11-12 | 中交一公局第二工程有限公司 | A kind of assembled load-bearing bracket |
| CN114837066A (en) * | 2022-05-19 | 2022-08-02 | 保利长大工程有限公司 | High-altitude cable tower beam construction bracket with external prestress and installation method |
| CN114941283A (en) * | 2022-05-31 | 2022-08-26 | 中交路桥建设有限公司 | Bearing bracket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 89 round City West Road, Xihu District, Hangzhou, Zhejiang Patentee after: Zhejiang transportation planning and Design Research Institute Co., Ltd. Address before: No. 89 round City West Road, Xihu District, Hangzhou, Zhejiang Patentee before: Zhejiang Provincial Plan Design&Research Institute of Communications |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110216 |
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| CX01 | Expiry of patent term |