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Road bridge variable section hollow high pier slip-form construction method

A construction method and variable cross-section technology, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as low cost, difficult construction control and safety assurance, and achieve the effect of saving materials, fast construction progress, and convenient construction

Inactive Publication Date: 2013-06-19
XINJIANG BEIXIN ROAD & BRIDGE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost is lower, but the construction control and safety assurance are more difficult

Method used

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  • Road bridge variable section hollow high pier slip-form construction method
  • Road bridge variable section hollow high pier slip-form construction method
  • Road bridge variable section hollow high pier slip-form construction method

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Embodiment Construction

[0022] In the present invention, as attached figure 1 As shown, the specific practical method is as follows: the construction preparation is carried out at the same time to make steel bar blanking and fabricate the assembled sliding formwork system, then bind the bottom steel bars, install the sliding formwork system, and then install the support rod after the processing and manufacture of the support rod 2 2. Then, connect the support rod 2 and the vertical reinforcement, bind the horizontal reinforcement, pour concrete, the formwork system is normally lifted and leveled, the molded concrete is plastered, and the final concrete is cured. Then, slide to the top, and then enter again After connecting the long support rod 2 and the vertical ribs, or, the top concrete is vibrated twice, the top surface and the molded concrete are plastered, and the formwork system slides out of the concrete. In addition, or, directly enter the formwork system after sliding to the top and slide out...

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Abstract

The invention discloses a road bridge variable section hollow high pier slip-form construction method. A conventional fixed formwork is changed to a slip type movable steel mould, steel ribs are used for binding, concrete pouring is carried out, a slip form slips up and works horizontally and continuously, a hydraulic jack is used for climbing up along a support rod, the formwork carries out continuous slip-up construction from the bottom of a pier to the top of the pier, a whole slip-form device is driven to carry out pouring and forming in a one-time continuous mode at the same time to complete whole pier body construction quickly, and above all, the geometric dimension of a variable section can be changed by the fact that an adjusting support ceaselessly contracts and expands in a slip process of the formwork in construction. Construction is convenient and flexible, a support is of no need in slip-form construction, cycle disassembling and cycle assembling are of no need for the same section, materials are saved, labor consumption is low, construction progress is fast, structural integrity is good, and safety and reliability are achieved.

Description

technical field [0001] The present invention relates to the technology of international patent classification E01D bridge or E04G scaffolding, formwork and other construction tools or other construction auxiliary equipment, especially the sliding form construction method of road and bridge variable cross-section hollow high piers. Background technique [0002] The construction of high bridge piers is often encountered in the construction of large bridges. Under the trend that the height of the pier body has grown from 30-50 meters to over 100 meters, the construction of high piers needs to be standardized and standardized to ensure project quality and construction safety. In addition, in the construction of high-pier bridges, the control of the construction period of the pier body is the key, which has an important impact on the total construction period. Therefore, it has become one of the problems to be solved to explore and improve the construction efficiency of high-pier ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/02
Inventor 王明江陈春艳张彦庆杨传峰孙志国
Owner XINJIANG BEIXIN ROAD & BRIDGE GRP
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