CN102051859B - Synchronous and fast construction method and device for cantilever-cast continuous girder No.0 block and lower structure - Google Patents
Synchronous and fast construction method and device for cantilever-cast continuous girder No.0 block and lower structure Download PDFInfo
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- CN102051859B CN102051859B CN2010105861367A CN201010586136A CN102051859B CN 102051859 B CN102051859 B CN 102051859B CN 2010105861367 A CN2010105861367 A CN 2010105861367A CN 201010586136 A CN201010586136 A CN 201010586136A CN 102051859 B CN102051859 B CN 102051859B
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Abstract
The invention provides a synchronous and fast construction method and a synchronous and fast construction device for a cantilever-cast continuous girder No.0 block and a lower structure. The construction comprises the following steps of: building a continuous girder No.0 block assembly platform on one side of a centre line of a bridge during pier body construction of the lower structure, and mounting a sliding channel; mounting brackets, templates, steel bars and prestressed pipe bundles for No.0 block construction on the assembly platform; mounting pier-side brackets and sliding channels after the pier body construction is finished, and connecting the sliding channels with the sliding channel of the assembly platform; mounting a No.0 block traction device; wholly sliding and placing the No.0 block templates, steel bars and the like through the traction device; and pouring No.0 block concrete. The invention has the advantages that: various processes are reasonably arranged, the time is saved, and the construction period is shortened, the invention is particularly suitable for projects which have short overall construction period or have abnormally stressful pressure on subsequent construction period and construction organizations due to delayed foundation construction. The invention is applied to construction of onshore upper structure No.0 block girders, construction of waterborne upper structure No.0 block girders and low-pier girders or high-pier girders.
Description
Technical field
What the present invention relates to is synchronously quick job practices of No. 0 piece of a kind of cantilever continuous girder bridge and substructure and device, and it is applicable to that the duration, comparatively anxiety and beam body construction adopted in the bridge construction of cantilever construction.Belong to technical field of bridge construction.
Technical background
In existing method for bridge construction, by conventional job practices, to build from carrying out No. 0 block concrete of continuous beam after pier construction is accomplished, No. 0 block concrete reaches installation Hanging Basket after the intensity, carries out other beam section concretes of free cantilever casting., pier construction builds after accomplishing to No. 0 block concrete of continuous beam; The support, formwork erection, assembling reinforcement, prestressed system, the concrete perfusion that comprise No. 0 piece of continuous beam; At least need 45 day time; This causes epitonic project of follow-up duration for the just short perhaps gene basis construction delays of overall duration of project, is guaranteeing to bring many puzzlements to project construction really under the prerequisite of workmanship.
Summary of the invention
What the present invention proposed is synchronously quick job practices of No. 0 piece of a kind of cantilever continuous girder bridge and substructure and device; Can be in the bridge substructure construction; The carrying out of a series of activities such as support, template, reinforcing bar of holding concurrently the construction can carry out No. 0 piece beam of continuous girder bridge body, after treating to finish the substructure construction concrete strength reaching requirement, can integral slipping behind bridge location; Carry out No. 0 construction of continuous girder bridge immediately, saved the construction period widely.
Technical solution of the present invention: the synchronously quick job practices of No. 0 piece of cantilever continuous girder bridge and substructure, this method comprises following construction sequence:
One, sets up a platform for lining and slippage passage in bridge center line one side, support, template, reinforcing bar and the prestressing force tube bank of No. 0 piece construction is installed on platform;
Two, accomplish the back at pier construction pier-side bracket and slippage passage are installed on cushion cap, pier-side bracket slippage passage is connected with platform for lining slippage passage, the installation draw-gear, through draw-gear that No. 0 piece support, template, steel bar overall slippage is in place; After accurately in place, fix, can carry out the working procedure of beam body concrete with pier shaft.
Three, beam body support frame, template, reinforcing bar and prestressed strand carry out when bridge bearing platform, the construction of pier shaft substructure simultaneously; Reach the intensity of code requirement at pier shaft after; Through slideway that the structural entity slippages such as support, template, reinforcing bar and prestressed strand of the construction of platform for lining and top No. 0 piece template reinforcing bar thereof is in place; Can carry out the construction of superstructure beam body, thereby realize fast constructing synchronously, reaching time-saving effect.
The synchronously quick construction equipment of No. 0 piece of cantilever continuous girder bridge and substructure; Its structure is that the up and down slideway beam is arranged on the platform for lining; The firm connection between glide path beam 3 and the platform for lining; On the glide path beam, install slipway beam, overlapping part is coated with full sliding agent between glide path beam and the sliding way beam, and No. 0 piece template reinforcing bar is installed on the sliding way beam; Pier shaft is installed on the pier-side bracket, and pier-side bracket is connected with platform for lining, glide path beam, in the glide direction termination of glide path beam draw-gear is installed, and draw-gear connects No. 0 piece template reinforcing bar.
Advantage of the present invention: 1) the present invention can be in the bridge substructure construction; The carrying out of a series of activities such as support, template, reinforcing bar of holding concurrently the construction to carry out No. 0 piece beam of continuous girder bridge body; After treating to finish substructure construction concrete strength reaching requirement; Get final product integral slipping behind bridge location, carry out No. 0 construction of continuous girder bridge immediately, saved the construction period widely.2) the present invention can rationally arrange each item operation, can a large amount of savings construct the used time, thereby shortens the construction period.The overall duration of the project that is particularly suitable for, just short perhaps gene basis construction delays caused follow-up duration epitonos, the nervous project of construction organization pressure anomaly.This technology can be used for superstructure 0# piece beam body construction on the bank, also applicable to superstructure 0# piece beam body construction waterborne; Not only go for low pier beam body, also applicable to high pier beam body, the scope of application is extensive.Because can be fast, good quality project, so can guarantee both quality and quantity to finish the work, this technical pattern simply, arrangement convenience, have excellent popularization value.
Description of drawings
Accompanying drawing 1 is the overall facade arrangement diagram of sliding platform, bridge circuit and pier-side bracket relativeness;
Accompanying drawing 2 is layout plans of accompanying drawing 1;
Accompanying drawing 3 is side arrangement figure of accompanying drawing 1.
1 is platform for lining among the figure, the 2nd, and pier-side bracket, the 3rd, the glide path beam, the 4th, the sliding way beam, 5 is No. 0 piece template reinforcing bars, the 6th, draw-gear, the 7th, pier shaft.
The specific embodiment
The construction point of this technological invention:
(1), No. 0 piece template, reinforcing bar and prestressing force tube bank installation, possess sliding condition;
(2), pier-side bracket, slippage passage, draw-gear installation, possess sliding condition;
(3), the pier shaft concrete strength meets the demands, and possesses sliding condition.
Satisfy above-mentioned condition, rationally arrange the duration to reduce time difference of three sliding conditions, as far as possible to satisfy the purpose of reduction of erection time.
Range of application has superstructure 0# piece beam body construction on the bank, superstructure 0# piece beam body construction waterborne; Low pier beam body or high pier beam body.
Claims (3)
1. the synchronous method of quick construction of No. 0 piece of a cantilever continuous girder bridge and substructure is characterized in that this method comprises following construction sequence:
One, sets up a platform for lining and slippage passage in bridge center line one side, support, template, reinforcing bar and the prestressed strand of No. 0 piece construction is installed on platform for lining;
Two, pier-side bracket and slippage passage, are installed pier construction after accomplishing on cushion cap; Pier-side bracket slippage passage is connected with platform for lining slippage passage; Draw-gear is installed, through draw-gear that support, template, reinforcing bar and the prestressed strand integral slipping of No. 0 piece construction is in place; After accurately in place, fix, promptly carry out the working procedure of beam body concrete with pier shaft;
Three, support, template, reinforcing bar and the prestressed strand of No. 0 piece construction carry out when bridge bearing platform, pier construction simultaneously; Reach the intensity of code requirement at pier shaft after; Through the slippage passage that support, template, reinforcing bar and the prestressed strand integral slipping of No. 0 piece construction above the platform for lining is in place; Promptly carry out the construction of superstructure beam body, thereby realize fast constructing synchronously, reaching time-saving effect.
2. No. 0 piece of a kind of cantilever continuous girder bridge according to claim 1 and substructure be the method for quick construction synchronously, and range of application has No. 0 piece beam of superstructure body construction on the bank, No. 0 piece beam of superstructure body construction waterborne; Low pier beam body or high pier beam body.
3. the synchronously quick construction equipment of No. 0 piece of cantilever continuous girder bridge and substructure; It is characterized in that the up and down slideway beam is arranged on the platform for lining, the firm connection between glide path beam and the platform for lining, on the glide path beam, install slipway beam; Overlapping part is coated with full sliding agent between glide path beam and the sliding way beam; No. 0 piece template reinforcing bar is installed on the sliding way beam, is treated after pier construction is accomplished pier-side bracket to be installed, and installation glide path beam is connected with platform for lining glide path beam on pier-side bracket; Draw-gear is installed in glide direction termination at the glide path beam, and draw-gear connects No. 0 piece template reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105861367A CN102051859B (en) | 2010-12-14 | 2010-12-14 | Synchronous and fast construction method and device for cantilever-cast continuous girder No.0 block and lower structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105861367A CN102051859B (en) | 2010-12-14 | 2010-12-14 | Synchronous and fast construction method and device for cantilever-cast continuous girder No.0 block and lower structure |
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| CN102051859A CN102051859A (en) | 2011-05-11 |
| CN102051859B true CN102051859B (en) | 2012-05-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102493363B (en) * | 2011-12-12 | 2014-04-16 | 中铁大桥局股份有限公司 | Quick construction method for segment No.0 of continuous beam |
| CN106012851B (en) * | 2016-06-15 | 2018-08-21 | 中冶南方工程技术有限公司 | Steel box-girder and performance of concrete column confined method for synchronously constructing |
| CN110230259B (en) * | 2018-08-21 | 2021-05-28 | 中铁十八局集团有限公司 | Bridge cantilever casting pier top beam section and rapid construction method thereof |
| CN110965476A (en) * | 2019-12-16 | 2020-04-07 | 中铁七局集团有限公司 | Method for controlling deformation of beam body in construction of large-span long-section asymmetric continuous beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008031768A (en) * | 2006-07-31 | 2008-02-14 | Ps Mitsubishi Construction Co Ltd | Cantilever overhanging erection method for corrugated steel plate web box girder bridge |
| CN101446076B (en) * | 2008-12-29 | 2010-10-27 | 中铁八局集团第一工程有限公司 | Cast-in-place support for long cantilever No. 0 block of cable-stayed bridge with tower beam consolidation and putting up method |
| CN101555680B (en) * | 2009-04-14 | 2011-01-26 | 中铁一局集团有限公司 | Large-span Pi type socle beam construction process in non-rope area of cable stayed bridge |
| CN101660296B (en) * | 2009-09-08 | 2011-01-26 | 中铁九局集团有限公司 | Method for casting concrete 0# block support by continuous beam cantilever |
| KR101203724B1 (en) * | 2010-07-01 | 2012-11-23 | (주)지아이에프 | The Construction methods for the cantilever slab using half precast panels |
| CN201915332U (en) * | 2010-12-14 | 2011-08-03 | 中铁大桥局集团第二工程有限公司 | Synchronic quick-construction device of cantilever continuous beam bridge NO.2 block and lower structure |
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Inventor after: Chang Shimin Inventor after: Zhang Youzhu Inventor after: Huang Honglin Inventor after: Meng Gang Inventor after: Yu Xiangjun Inventor after: Qin Shunquan Inventor after: Liu Xueming Inventor after: Wu Xiaojun Inventor after: Liu Xiaoxia Inventor after: Deng Jingxiong Inventor after: Cha Benyi Inventor after: Huang Zhonghua Inventor after: Chen Shuangbing Inventor after: Wang Shi Inventor after: Bai Boyuan Inventor after: Zhuang Xiaogang Inventor after: Cui Huaiyu Inventor after: Wu Zongping Inventor after: Wang Lizhong Inventor after: Geng Zengxian Inventor after: Qiu Xunbing Inventor after: Chen Hanchu Inventor before: Meng Gang Inventor before: Cha Benyi Inventor before: Wang Shi Inventor before: Yu Xiangjun Inventor before: Qin Shunquan Inventor before: Liu Xueming Inventor before: Wu Xiaojun Inventor before: Liu Xiaoxia Inventor before: Bai Boyuan Inventor before: Wu Zongping Inventor before: Geng Zengxian |
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