Method for measuring and controlling tower column and cable pipeline in synchronous construction of tower and beam of cable-stayed bridge

A technology of measurement control and simultaneous construction, applied to cable-stayed bridges, bridges, bridge forms, etc., can solve problems such as reduced construction efficiency, easy fatigue of personnel, unknown deformation, etc., achieve positive economic and social benefits, and reduce construction safety risks , The effect of reducing construction costs
CN101799276AActive Publication Date: 2010-08-11CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
Publication Date
2010-08-11

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Abstract

The invention provides a method for measuring and controlling a tower column and a cable pipeline in synchronous construction of a tower and a beam of a cable-stayed bridge. The method comprises the following steps: filtering the deformation of the tower column under the actions of sunshine, temperature gradient and unbalanced load out by adopting a time-segmented measurement comparison method; setting a measuring and control point on the tower column; and establishing an independent coordinate system for controlling spacial positions of the tower column and the cable pipeline. By using the method, the construction of the tower column can be measured and controlled in all weather, so that the method improves the measuring and control precision of the tower column and the cable pipeline, solves the key difficult technical problem of the synchronous construction of the tower and the beam of the cable-stayed bridge, and has great benefit to improving the construction efficiency and the quality of the cable-stayed bridge.
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Description

Technical field

[0001] The invention relates to a cable-stayed bridge construction measurement control technology, in particular to the measurement control technology of the tower column and the cableway pipe when the cable-stayed bridge tower column and the beam body are simultaneously constructed (tower and beam synchronous construction). Background technique

[0002] With the rapid development of my country's national economy and bridge construction technology, there are more and more large-span cable-stayed bridge projects, construction period pressures are increasing, and the requirements for the measurement and positioning accuracy of tower columns and cableway pipes are getting higher and higher. The conventional construction methods of cable-stayed bridges are the towers first, the beams later, symmetrical suspension assembly, and night-time survey control. That is, first construct the tower column from bottom to top. After the construction of the tower column is complete...

Claims

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