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Multi-node integral installation method for steel truss beam

A technology of overall installation and steel truss girders, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as high construction requirements, many construction nodes, and multi-section steel labor, so as to save construction period, speed up installation, The effect of ensuring construction safety

Inactive Publication Date: 2009-06-03
THE 5TH ENG MBEC
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Problems solved by technology

The commonly used construction method for steel truss girders is single-piece assembly. There are problems in the following aspects when assembling with this method: 1. More steel and labor are required to build the operation platform; 2. There are many construction nodes, and there are many safety and quality risks. Long period; 3. High construction requirements, alignment and installation are very difficult; 4. Pre-camber control is difficult

Method used

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  • Multi-node integral installation method for steel truss beam
  • Multi-node integral installation method for steel truss beam
  • Multi-node integral installation method for steel truss beam

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Embodiment Construction

[0025] Below in conjunction with Chongqing Caiyuanba Yangtze River Bridge and with reference to the accompanying drawings, the present invention will be further described in detail.

[0026] A multi-node overall installation method for steel truss girders:

[0027] A. A standard section of steel truss girder is 16 meters long, consisting of lower chord 1, diagonal web 2, middle and upper chord 3, side upper chord 4, diagonal brace 5, lower beam 6, lower horizontal longitudinal joint 11, and bridge deck edge Block 8, bridge deck middle block 9, bridge deck side plate 10, and bridge deck beam 7 are assembled together to form a standard segment through joints at various points in the processing plant. In order to stabilize the structure of the standard segment, the A temporary vertical bar 12 is added in the middle of the oblique web bar 2 to connect with the lower chord 1, and the oblique web bar 2 to be docked is fixed with the temporary connecting plate 13 and the lower chord ...

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Abstract

The invention discloses a multi-node integral installation method for a steel truss beam, comprising the following steps: firstly, integral manufacturing is carried out in a factory, then the product is installed to form standard segments, the standard segments are temporarily fixed and pre-jointed in the factory, then the segments are transported to bridge location by large transportation equipment, integral lifting is carried out by a large lifting appliance and the segments are installed; the installation sequence is that firstly, a lower chord and an oblique web plate are installed, then a middle chord, an upper chord and a side upper chord are installed, at last, a lower lateral bracing, a lateral plate and a bridge deck in a welding way. The invention has the advantages that the linetype is easily controlled, the steel truss beam can be used as the operation platform, the installation speed is high, construction period is shortened and construction security is guaranteed.

Description

technical field [0001] The invention relates to bridge construction equipment, in particular to a multi-node overall installation method for steel truss girders. Background technique [0002] With the rapid development of our country's economy and society, many new cross-sea and river bridges will be built across the country. The commonly used construction method for steel truss girders is single-piece assembly. There are problems in the following aspects when assembling with this method: 1. More steel and labor are required to build the operation platform; 2. There are many construction nodes, and there are many safety and quality risks. Long period; 3. High construction requirements, alignment and installation are very difficult; 4. Pre-camber control is difficult. Contents of the invention [0003] The purpose of the present invention is to provide a steel truss girder multi-node overall installation method which is easy to control the line shape, can be used as an ope...

Claims

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Application Information

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IPC IPC(8): E01D21/00
Inventor 连居彭建萍谢季军李述宝黄元群魏善平罗志雄莫洪柳陈爱军叶绍其赵则锋王晓敏李燕青
Owner THE 5TH ENG MBEC
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