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Large-section steel box girder and construction method thereof

A construction method and technology of steel box girders, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of difficult hoisting and low efficiency of hoisting and assembling steel box girders, and improve construction quality and coating Construction efficiency and safety, and the effect of improving construction efficiency

Pending Publication Date: 2022-04-12
杭州萧山交通建设管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the installation and construction of steel box girder spanning elevated steel box girders in complex urban environments, conventional construction methods have problems such as low efficiency of hoisting and assembly of steel box girders, and difficulty in hoisting

Method used

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  • Large-section steel box girder and construction method thereof
  • Large-section steel box girder and construction method thereof
  • Large-section steel box girder and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 As shown, the large-section steel box girder construction method includes the following construction steps:

[0041] Step 1. Construction preparation: conduct safety technical assessment for the installation of the upper-span steel box girder 1, carry out hoisting and traffic relief, and simultaneously carry out the prefabrication work of the steel box girder section 24;

[0042] In this step, for the installation of the upper-span steel box girder 1, it is necessary to conduct a safety technical assessment of the upper-span subway under construction, the existing viaduct 27, the bridge pier 28, and the channel structure, so as to carry out hoisting and traffic relief.

[0043] Step 2, transporting the steel box girder segment 24: transport the prefabricated steel box girder segment 24 to the construction site, and use the steel box girder reinforcement device 15 for reinforcement during the transportation;

[0044] Wherein, the steel box girder segmen...

Embodiment 2

[0062] The large-section steel box girder is constructed by using the construction method of the large-section steel box girder in Example 1.

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Abstract

The invention relates to a large-section steel box girder and a construction method thereof. According to the scheme, the construction method comprises the following construction steps that firstly, construction preparation is conducted; secondly, the steel box girder segments are transported; step 3, pre-assembling the steel box girder; step 4, mounting the steel box girder; 5, welding the steel box girder; and 6, coating the steel box girder until the construction is completed. The construction method has the advantages of being high in construction efficiency, low in hoisting difficulty and capable of preventing deformation of the steel box girder.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a large-section steel box girder and a construction method thereof. Background technique [0002] With the rapid development of my country's steel structure technology and steel industry, the role of steel bridges in bridges is becoming more and more significant. Especially steel structure box bridges, with their strong spanning ability, beautiful bridge shape, short construction period, and high torsional rigidity Large, good integrity, and less impact on the environment during construction, it has been widely used in municipal bridges, and it is mostly used in long-span bridges. [0003] Aiming at the installation and construction of steel box girders spanning overpasses in complex urban environments, conventional construction methods have problems such as low efficiency of steel box girder hoisting and assembly construction, and difficult hoisting. [0004] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/04E01D21/00
Inventor 金文华黄文明张正伟
Owner 杭州萧山交通建设管理有限公司
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