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Cable stayed bridge construction method

A construction method and technology for cable-stayed bridges, applied to cable-stayed bridges, bridges, bridge forms, etc., can solve the problems of long construction period and high construction cost, so as to reduce the construction period, ensure the safety of the tower column structure, and reduce wind vibration The effect of response

Inactive Publication Date: 2009-06-17
GUANGDONG FOUND ENG GRP CO LTD +1
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Problems solved by technology

As the scale of the cable-stayed bridge increases, the span increases and the height of the main tower increases, the construction period of this conventional construction method is often very long, and special measures such as vibration reduction and crack prevention must be taken for the main tower, resulting in higher construction costs. Big

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  • Cable stayed bridge construction method

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Embodiment Construction

[0013] The construction method of cable-stayed bridge of the present invention may further comprise the steps:

[0014] 1. After the bridge pile foundation 3 and the pile cap 4 are constructed, the non-cable area structure 11 of the main tower column is constructed first, and the main beam 0# is carried out while the non-cable area structure 11 of the main tower column is being constructed. Construction of block structure 21. The construction of the structure 11 in the non-hanging cable area of ​​the main tower column can be completed in segments by using sliding formwork, climbing formwork or combined formwork, and the main beam 0# block structure 21 can be completed by cast-in-place support formwork.

[0015] 2. Then carry out the synchronous construction of the cable hanging area structure 12 of the main tower column and the main beam 22. That is, while the cable-hanging area structure 21 of the main tower column is being constructed vertically in sections, the main girder...

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Abstract

The invention relates to a construction method of a cable stayed bridge, which comprises the following steps of: firstly constructing the non-cable hanging section structure of a main tower column and simultaneously constructing the block-by-block structure of a main beam, simultaneously constructing the cable hanging section structure of the main tower column and the main beam, that is, constructing the cable hanging section structure of the main tower column along a vertical direction to be heightened in segments and simultaneously constructing the main beam block-by-block correspondingly towards both sides, and executing the one-by-one hanging and the tensioning of the stayed cables till the main tower column is completed and the main beam is folded. Due to the segmented construction of the main tower column, the construction of the hanging cable and the main beam is executed after a certain quantity of segments of the main tower column are completed and the construction conditions for hanging the stayed cable are met, and simultaneously, the main tower column is also continuously constructed in segments upwards so as to achieve the simultaneous construction of the main tower column and the main beam, therefore, the tower column and the beam are simultaneously constructed so as to effectively shorten the construction period and ensure the safety of the tower column structure during the construction.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to the construction technology of cable-stayed bridges. Background technique [0002] The conventional construction method of cable-stayed bridges is to adopt the construction method of the tower first and then the beam, that is, the main tower column is completed until the top is capped, and then the main beam is poured. As the scale of the cable-stayed bridge increases, the span increases and the height of the main tower increases, the construction period of this conventional construction method is often very long, and special measures such as vibration reduction and crack prevention must be taken for the main tower, resulting in higher construction costs. big. Contents of the invention [0003] The purpose of the present invention is to address the above-mentioned problems and provide a construction method for effectively shortening the construction period and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D11/04
Inventor 许建得李钦赵资钦刘联伟钟显奇邵孟新陈锦云
Owner GUANGDONG FOUND ENG GRP CO LTD
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