Method for disassembling multi-span double-curved arch bridge

A double-curved arch bridge and pier technology, which is applied in bridges, bridge maintenance, bridge reinforcement, etc., can solve the problems of unsuitable water areas required by navigation, bridge body components falling under the bridge, obvious double-arch effect, etc., and achieve low construction noise , Solve navigation and reduce safety risks

Active Publication Date: 2020-02-28
GUIZHOU TRANSPORTATION PLANNING SURVEY & DESIGN ACADEME
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Problems solved by technology

Many bridges are built to cross rivers. Conventional double-curved arch bridge demolition methods such as blasting and mechanical demolition will inevitably cause bridge components to fall under the bridge and pollute the water body. However, the general support method can ensure the safety of demolition. Sexuality, but not applicable to waters with navigable requirements
At present, the co

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  • Method for disassembling multi-span double-curved arch bridge
  • Method for disassembling multi-span double-curved arch bridge
  • Method for disassembling multi-span double-curved arch bridge

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Embodiment Construction

[0050] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0051] Such as Figure 1-3 As shown, the main bridge of the double-curved arch bridge in this embodiment has three spans. The direction of the longitudinal bridge described below refers to the direction of crossing the river, and the direction of the transverse bridge refers to the direction of the flow of the river.

[0052] A method for dismantling a multi-span double-curved arch bridge, comprising the steps of:

[0053] (1) Demolition of bridge deck structures, from the middle of each span to both banks, and symmetrically along the longitudinal bridge to the center line. The dismantled structures are loaded and transported away from the bridge area; Figure 4 As ...

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Abstract

The invention discloses a method for disassembling a multi-span double-curved arch bridge. The method comprises the following steps that (1) bridge deck structures are disassembled, and a cable hoisting system is erected; (2) fillers above the arch, spandrel arch rings and a transverse wall are sequentially removed; (3) a steel arch frame supporting platform is erected, and a steel arch frame is installed; (4) the arch rings are removed; (5) the steel arch frame supporting platform is removed after the steel arch frame is disassembled; and (6) piers are disassembled. The method does not pollute the water body under the bridge during use, does not affect the passage of a channel ship, and can improve the disassembling construction safety.

Description

technical field [0001] The invention relates to the dismantling of a double-curved arch bridge, in particular to a method for dismantling a multi-span double-curved arch bridge. Background technique [0002] In the 1960s and 1970s, due to the advantages of good economy and convenient construction, double-curved arch bridges have been widely used throughout the country. After dozens of years of operation, many double-curved arch bridges have become dangerous bridges due to a large number of diseases. Some bridges have become more serious after several years of reinforcement and operation. In order to protect people's lives and property safety, traffic must be closed and demolished. Many bridges are built to cross rivers. Conventional double-curved arch bridge demolition methods such as blasting and mechanical demolition will inevitably cause bridge components to fall under the bridge and pollute the water body. However, the general support method can ensure the safety of demo...

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Application Information

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IPC IPC(8): E01D22/00
CPCE01D22/00
Inventor 唐超王大林李宇航尚羽刘洋张磊徐治华张国发彭小勇汪晓霞刘伟伟胡可胡志强田俊郑本伟方正赵康赵睿陈栋军安振伟尹云厅崔志强万阳杨淳张鹏陶瑜隆
Owner GUIZHOU TRANSPORTATION PLANNING SURVEY & DESIGN ACADEME
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