Box-shaped bracket system and its installation method for single-column pier groups of bridges

Abstract

The invention discloses a bridge single column pier assembled box bracket system, which is characterized in that box bracket plates are arranged on two sides of a pier below a capping beam; and each bracket plate comprises an upper longitudinal beam, a lower longitudinal beam and diagonal bracings symmetrically arranged, wherein the upper longitudinal beam, the lower longitudinal beam and the diagonal bracings are manufactured by profile steels; and the bracket plates on the two sides of the pier are pulled and fastened by a round steel pull rod to form an integrated bearing system in order to improve the whole stability of the bracket. The system is stably supported on the pier by a round steel rod, so that the anti-overturning capability of the bearing system is improved in the construction process of the capping beam. The box bracket has the advantages of simple and convenient structural calculation, good stressing condition and safety and stability, little material consumption, high working efficiency, low cost, good economy and the like, and the construction is not limited by terrain.

Description

technical field [0001] The invention relates to the construction of a cover beam on a square single-column pier in a bridge engineering substructure in the field of bridge construction, in particular to a box-shaped bracket for a bridge single-column pier group and an installation method. Background technique [0002] In the current highway and bridge construction, due to the limitation of bridge height, geological and terrain conditions, the lower part of some bridges adopts the structural form of single-column piers and prestressed cap beams. [0003] The common construction methods of bridge cover beams are divided into two types: support method (set up a steel pipe frame as the support of the cover beam) and bracket method (set support points on the pier columns, and use I-beam or Bailey frame as the support of the cover beam). When the height of the pier is large, the bracket method is generally used for the construction of the cap beam due to the less labor and materia...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the structural strength and rigidity conditions cannot be satisfied when only adopting I-beam or Bailey frame as the support bracket of the cover beam. The bracket system effectively shortens the length of the bracket cantilever by assembling the upper and lower profiled steel longitudinal beams and the connected profiled steel diagonal braces to meet the needs of structural strength and rigidity

Images