Transverse compound pier anti-seismic stop structure

Abstract

The invention discloses a transverse compound pier anti-seismic stop structure. The structure comprises a pier, a support cushion block and a bridge superstructure; and the support cushion block is arranged between the pier and the bridge superstructure. The structure further comprises a weak stop arranged on the pier and a strong stop arranged at the bottom of the bridge superstructure; the weak stop is arranged at the outer side of the support cushion block and is higher than the support cushion block; the strong stop is arranged at the inner side of the support cushion block; the weak stop and the support cushion block are arranged on the same plane; and the distance from the strong stop to the adjacent support cushion block is greater than the distance from the weak stop to the bridge superstructure. The transverse compound pier anti-seismic stop structure disclosed by the invention improves the transverse seismic capability of a bridge, solves the problem of transverse girder drop and provides a large relative displacement space between bridge superstructure and substructure.

Description

technical field [0001] The invention relates to the field of anti-seismic technology of bridges, in particular to an anti-seismic block structure of a composite bridge pier in the direction of a transverse bridge. Background technique [0002] In an earthquake, the bridge is mainly affected by the components of the horizontal earthquake in the direction along the bridge and the direction along the bridge (the direction along the bridge refers to the direction of the central axis of the bridge, and the direction along the bridge refers to the direction perpendicular to the central axis of the bridge). Under the action of the horizontal component of the bridge, there are the following potential safety hazards: the superstructure of the bridge collides with the lateral stoppers on the pier (or abutment), the lateral stoppers are damaged, and a transverse girder drop accident occurs. [0003] At present, on the problem of preventing the bridge superstructure from falling beams i...

AI Technical Summary

Problems solved by technology

[0004] For the bridge structure using the seismic isolation system, if the performance of the seismic isolation system is to be fully exerted under the earthquake action of the transverse bridge direction, a relatively large relative displacement (100-200mm) between the superstructure and the substructure of the bridge is required. The conventional anti-seismic block limits the occurrence of such a large relative displacement.

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