Erection method of steel tube arch bridge arch center

A steel pipe arch bridge and arch frame technology, which is applied in the field of erecting steel pipe arch bridge frame arch frames, to achieve the effect of convenient construction

Active Publication Date: 2014-04-02
中铁二十五局集团第二工程有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to provide a method for erecting the steel pipe arch bridge frame under the condition of crossing a large station yard, so as to solve the construction and installation problem of the above-mentioned long-span steel pipe arch bridge crossing the railway hub station yard

Method used

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  • Erection method of steel tube arch bridge arch center
  • Erection method of steel tube arch bridge arch center
  • Erection method of steel tube arch bridge arch center

Examples

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Embodiment Construction

[0013] Such as Figure 1-5 , a method for erecting the arch frame of a steel pipe arch bridge, its arch frame 1a is divided into two end arch ribs 11a, 13a and a middle arch rib 12a, and the middle arch rib 12a is divided into multiple sections; its erection method comprises the following steps:

[0014] Build two parallel drag runways 2a along the steel pipe arch bridge erection direction;

[0015] Set moving track 3a above the drag runway;

[0016] Such as figure 1 First, build the first section of the middle arch rib support 41a at one end of the dragging track. The bottom of the section of the arch rib support 41a is placed in the moving track 3a set above the dragging track through the walking trolley 5a, and the first section of the middle arch rib 121a is hoisted and positioned. above the bracket, and connect it firmly with the bracket; drive the bracket to move forward along the moving track through the driving device, the driving device can be a hydraulic cylinder, ...

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Abstract

The invention discloses an erection method of a steel tube arch bridge arch center. The erection method comprises the following steps: firstly setting up two parallel dragging runways along a steel tube arch bridge erection direction, and then arranging movable tracks on the dragging runways; hoisting end parts, then piecemeal translating every section of a middle arch rib by using a support to an installation site, finally hosting end arch ribs at the two ends, and splicing the end ribs and the middle ribs, thus realizing the erection of the arch center. According to the erection method, only the end parts need to be hoisted by using a crane in the installation process of the whole arch center, and the middle part of the arch rib does not need to be hoisted by the crane, does not occupy the space of a station and has no influence on the operation of the station. The erection method is free of limitation of railway electrification safety regulations and requirements and railway operation conditions and is very convenient for construction.

Description

technical field [0001] The invention relates to the erection technology of the steel pipe arch bridge, in particular to a method for erecting the steel pipe arch bridge frame under the condition of crossing a large station yard. Background technique [0002] In the erection construction of the steel pipe arch bridge, many technical difficulties are encountered when crossing the existing large-scale railway hub station. Use large hoisting machinery and equipment. [0003] The existing installation methods of steel pipe arch bridges mainly include cable hoisting with or without brackets, cable hoisting with few brackets, floating hoisting installation of whole arch ribs or few brackets, suspension bridge cable hoisting, swivel construction, assembly on brackets, cable-stayed buckle hanging with jacks Hang fight and so on. Due to the requirements of railway electrification safety regulations and railway operating conditions, large-scale hub stations often cannot accommodate l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
Inventor 谢赛军彭思甜范波隋瑞凌贺德林郑文超张部伟李正元段君良蔡文胜符望春陈海军
Owner 中铁二十五局集团第二工程有限公司
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