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Method for whole hole replacement of existing bridge

A technology for bridges and bridge bridges, which is applied in the field of the whole hole replacement construction of existing simply-supported T-beam diseased bridges of existing railways, can solve the problems of high hoisting risk factor, great influence of traveling equipment, and difficult construction operations, and achieves simple construction operation and high quality. The effect of guaranteeing and facilitating personnel operations and monitoring

Inactive Publication Date: 2018-02-09
CHINA RAILWAY SHISIJU GROUP CORP
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AI Technical Summary

Problems solved by technology

This beam replacement construction method has strict requirements on the configuration of the crane and the work site, and the operation cycle is long. The age of the concrete, horizontal tension, and bridge deck pavement will take at least several weeks. The long-term outage of the line seriously affects the business line. At the same time, when the net height of the bridge is large, the risk factor of point hoisting is high, which has a great impact on the existing driving equipment and difficult construction operations

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  • Method for whole hole replacement of existing bridge
  • Method for whole hole replacement of existing bridge
  • Method for whole hole replacement of existing bridge

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Embodiment Construction

[0034] In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation mode combined with the accompanying drawings.

[0035] As can be seen from the accompanying drawings, the method for replacing the entire bridge hole in the existing bridge includes the following steps,

[0036] Step 1: Concrete foundation 1-3 construction shall be carried out according to the conditions of the road under the bridge of the diseased bridge to meet the foundation bearing capacity requirements of T-beam side assembly and beam moving operation; when the position of concrete foundation 1-3 is wrongly matched with the existing bridge cap , use bored piles to protect the existing bridge cap;

[0037] Step 2: After the construction of the concrete foundation 1-3 is completed, a pier steel tower 1 is erected according to the clear height requirements of the bridge with disease, and the pier steel tower 1 is erected in para...

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Abstract

The invention provides a technical scheme of a method for whole hole replacement of an existing bridge. A self-propelled girder moving cart is matched with a pier steel tower rack to perform whole hole replacement of the existing bridge. The system has little influence on business line train operation and existing equipment and is simple in operation, high in applicability and good in safety.

Description

technical field [0001] The invention relates to a method for replacing the whole hole of an existing bridge, and is especially suitable for the replacement construction of the whole hole of the existing simply supported T-beam bridge of a railway. Background technique [0002] With the rapid development of social economy, the task of railway transportation has been increasing, and the appearance of diseased bridges has become a major problem in existing line transportation. However, the traditional blockade method of using cranes to replace pieces and paving within bridge points is time-consuming and laborious, and seriously affects the normal operation of the railway. [0003] At present, bridge problems often occur in the course of railway operation. The speed limit of trains is often implemented in the section of bridges with diseases, and even freight trains are stopped to ensure the safety of traffic, which directly limits the development of railway transportation capac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 陈忠锋高思清李坤高超徐玉珑樊玉峰刘杏华丛义营李宗田
Owner CHINA RAILWAY SHISIJU GROUP CORP
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