Horizontal Constraint System for Split Pier Supports

Abstract

The present invention relates to the field of bridge engineering structures, in particular to a horizontal restraint system for separated bridge pier supports, which includes: two bridge piers arranged at intervals in the direction of the transverse bridge; and the pier tops of each of the bridge piers are equipped with transverse movable supports It also includes a main beam, which is arranged on all the lateral movable supports; it also includes two restraint devices, each of which includes: a base, which is arranged on the bridge piers and the lateral movable supports between the seats; also includes a constraining body, which is arranged at the end of the main beam and is located on the outside of the base in the transverse bridge direction; wherein, the constraining body and the base are separated by a set distance in the horizontal direction, The constraining body and the base have staggered overlapping parts in the vertical direction. The present invention can effectively solve the problem in the prior art that the horizontal bearing capacity of the separated pier support is too large, and when the ratio of the horizontal bearing capacity to the vertical design bearing capacity is much greater than the set requirement, a special design of the bearing is required, and the bearing is too large The large horizontal force causes the size of the pier to be too large, which leads to the problem of high engineering cost.

Description

technical field [0001] The invention relates to the field of bridge engineering structures, in particular to a horizontal restraint system for separated bridge pier supports. Background technique [0002] Generally speaking, when the bridge has a wide deck, the substructure of the bridge is usually designed as a separate pier. At this time, the types of lateral constraints on the pier top support are: one pier top support is a lateral restraint support to limit the lateral displacement of the main girder; the other pier top support is a lateral movable support to release the lateral displacement of the main girder. In conventional bridge bearing design, the horizontal bearing capacity of the bearing is generally 10% of the vertical design bearing capacity. If the horizontal bearing capacity and the vertical design bearing capacity exceed 10%, the support needs special design. Therefore, when separated piers are used for wide bridges, if the ratio of the lateral force to th...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects existing in the prior art, the purpose of the present invention is to provide an alternative method for the horizontal restraint of the pier support, which can effectively solve the problem in the prior art that the horizontal bearing capacity of the support is greater than the vertical design bearing capacity setting requirement When it is necessary to specially design the support, and the size of the pier is too large, which leads to the problem of high cost

Images