Steel tower column with positioning structure and hoisting construction method thereof

Abstract

The invention discloses a steel tower column with a positioning structure and a hoisting construction method thereof, relating to the technical field of bridge installation. The steel tower column with the positioning structure is characterized in that an upper installation plate is arranged in the position, adjacent to a top port, of a square steel pipe; four guiding columns are vertically arranged on the upper installation plate; each guiding column is arranged at one corner of the square steel pipe, and extends out of the top port; after two steel tower columns are vertically spliced into a whole, a lower guiding plate of the square steel pipe positioned at the upper part is correspondingly spliced with an upper guiding plate of the square steel pipe positioned at the lower part, so that a rectangular plate is formed. In the hosting construction of the steel tower columns, the coarse positioning is firstly performed on a to-be-installed steel tower column and an installed steel tower column, and then the precise positioning is performed on the to-be-installed steel tower column and the installed steel tower column. According to the steel tower column with the positioning structure and the hoisting construction method thereof, the registration precision of the integral hosting of the steel tower columns is improved, the construction period is shortened, the labor services are reduced, and the mechanical equipment investment is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge installation, in particular to a steel tower column with a positioning structure and a hoisting construction method thereof. Background technique [0002] The steel tower column is the main force-bearing structure of the cable-stayed bridge. The positioning accuracy of the hoisting and splicing of the steel tower column as a whole determines the quality of the cable-stayed cable installation in the later stage, and directly affects the stress status of the bridge body. Therefore, during the hoisting construction of the steel tower column, the overall line shape and positioning of the steel tower column are extremely demanding. [0003] In the existing construction of offshore bridges, the steel tower columns are spliced ​​into a whole by hoisting towers and installing steel column segments. Since the construction of steel tower columns is a high-altitude operation, the construction space is narrow,...

AI Technical Summary

Problems solved by technology

[0003] In the existing construction of offshore bridges, the steel tower columns are spliced ​​into a whole by hoisting towers and installing steel column segments. Since the construction of steel tower columns is a high-altitude operation, the construction space is narrow, and there are great difficulties in matching and positioning between segments. , and at sea, the hoisting is affected by the tide level and weather, which directly increases the difficulty of realizing the precise positioning of the tower

In addition, there is no corresponding adjustment of construction equipment for the splicing of steel tower columns with large length and large tonnage into a whole steel tower column.

If the conventional method is adopted during the construction of the steel tower column, adjusting the alignment method during the hoisting process will cause the floating crane to be in a state of hoisting stress for a long time, which is not conducive to the construction quality and safety control of the steel tower column, and will directly increase the installation capacity. cost

Images