Construction system and construction method for cable-stayed bridge main tower and steel anchor beams

Abstract

The invention discloses a construction system and a construction method for a cable-stayed bridge main tower and steel anchor beams. The construction method for the cable-stayed bridge main tower andthe steel anchor beams comprises the following steps of step 1, mounting embedded steel plates and arranging the embedded steel plates on the top surface of a beam bracket; step 2, arranging a tower column steel internal template between the top surface of a lower supporting beam and the bottom surface of an upper supporting beam; step 3, mounting the lower part of a steel anchor beam temporary bracket on an existing building platform surface or a finished steel anchor beam top plate; and mounting a steel anchor beam corresponding to the lower supporting beam on the steel anchor beam temporarybracket before segmental concrete pouring of the main tower; and step 4, welding the steel anchor beam corresponding to the lower supporting beam with the embedded steel plate into place; and then mounting a steel anchor beam corresponding to the upper supporting beam and welding the steel anchor beam corresponding to the upper supporting beam with the corresponding embedded steel plate. According to the construction method for the cable-stayed bridge main tower and the steel anchor beams, as the mounting construction of the steel anchor beams is integrated into the construction of a tower column structure, the segmental construction frequency of the tower column is reduced, the method is beneficial for controlling the internal quality and appearance quality of the tower column structure,the construction period is reduced and material waste is reduced.

Description

technical field [0001] The invention belongs to the technical field of cable-stayed bridge construction, and in particular relates to a construction system and a construction method for a main tower and a steel anchor beam of a cable-stayed bridge. Background technique [0002] A cable-stayed bridge is a composite system bridge in which the tower is under compression, the cables are under tension, and the girder is under bending. The system can effectively reduce the height of the building structure, reduce the weight and save materials. Modern cable-stayed bridges occupy an important position in modern bridge structures due to their good structural performance, large spanning capacity, reasonable economic indicators and beautiful architectural shapes. Due to the advancement of modern structural theory, high-strength materials, computer technology and construction methods Make the cable-stayed bridge develop rapidly. [0003] The main tower of the cable-stayed bridge is th...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a construction system and construction method for the main tower of a cable-stayed bridge and a steel anchor beam, so as to solve the problem that the construction space between the joists is too narrow and the lower steel anchor beam cannot be installed after the concrete pouring is completed

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