Method of mounting precast steel tower on concrete tower column of cable-stayed bridge

Abstract

The invention discloses a method of mounting a precast steel tower on a concrete tower column of a cable-stayed bridge. The precast steel tower includes at least two symmetrically arranged segments, and the method of mounting the precast steel tower on the concrete tower column of the cable-stayed bridge includes the steps that 1, the segments are preliminarily mounted on the upper end face of theconcrete tower column; 2, three-dimensional laser scanning equipment is used for scanning the appearances of the segments to obtain segment point cloud data; 3, point cloud data processing software is used for converting the segment point cloud data into a measurement building informatization model; 4, the measurement building informatization model is compared with a design building informatization model to obtain installation deviation values, wherein the design building informatization model is built by adopting design data; 5, according to the deviation values, the relative positions of the segments and the upper end face of the concrete tower column are adjusted. According to the method of mounting the precast steel tower on the concrete tower column of the cable-stayed bridge, by adopting scanning results of the three-dimensional laser scanning equipment, the installation deviation values are obtained; according to the installation deviation values, the relative positions of thesegments and the upper end face of the concrete tower column are adjusted, the segments mounted on the concrete tower column are accurately positioned and adjusted, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of bridge installation, in particular to a method for installing a prefabricated steel tower of a cable-stayed bridge on a concrete tower column. Background technique [0002] With the rapid development of my country's social economy, the scale and number of bridge projects have increased dramatically. As an important part of traffic engineering, bridge is an important part of infrastructure construction. In practical applications, bridges are affected by many factors such as design standards, service life, construction quality, environmental erosion, maintenance, accidental accidents, and road traffic conditions. During the service period, bridges may experience safety hazards such as settlement, cracking, damage, and excessive deformation. question. The quality of bridges has become the focus of attention. [0003] The steel-concrete towers of cable-stayed bridges are spliced ​​by steel towers and concrete towers...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a prefabricated steel tower of a cable-stayed bridge installed on the concrete tower in order to

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