Assembled damping device for high-speed railway bridge and its application method and replacement method

Abstract

The invention discloses a high-speed railway bridge assembly-type steel plate shear wall damping device. An anti-seismic support is arranged at the center of the top of a prefabricated pier column. Each group of damping units includes a T-shaped main body, horizontal energy-dissipating plates, angle steels, vertical energy-dissipating plates, and anchoring components; horizontal energy-dissipating plates are arranged symmetrically on the inner side of the wing plates of the T-shaped main body, angle steels are symmetrically arranged on both sides of the web, and angle steels are arranged symmetrically on both sides of the web. The corner is located in the angle between the wing plate and the web of the T-shaped main body, and two rows of anchoring members are arranged on the outer side of the wing plate symmetrically about the center plane in the length direction; the wing plate of the T-shaped main body, the horizontal energy dissipation plate, the angle The horizontal arm and the anchor member are connected by high-strength bolts and nuts to form an integral part; the two sets of integral parts are relatively symmetrically arranged on the web of the T-shaped main body, and on both sides of the web of the two T-shaped main bodies and the angle steel on both sides Vertical energy-dissipating plates are respectively inserted between the vertical arms and connected by high-strength bolts and nuts to form a shock-absorbing unit.

Description

technical field [0001] The invention belongs to the field of bridge damping, in particular to an assembled damping device for a high-speed railway bridge, an application method and a replacement method thereof. Background technique [0002] The direct damage caused by the earthquake to the bridge is the damage and collapse of the bridge structure. The connection nodes between the bottom surface of the bridge beam body and the top of the pier column are the weak link of the bridge structure and the key link of the seismic design. [0003] In recent years, with the continuous development of anti-seismic bearing technology, anti-seismic bearing technologies such as lead rubber anti-seismic bearings and pendulum sliding friction bearings have been continuously developed in the engineering practice of bridge anti-seismic. seismic load. In order to ensure the safety of seismic bearings, shock-absorbing tenons are often installed in projects to dissipate part of the seismic energy...

AI Technical Summary

Problems solved by technology

[0005] Most of them have complex structures and are often integrally connected with the bridge structure. The construction cost is relatively high, and the removal and replacement are difficult and time-consuming, which is not conducive to the rapid recovery of the seismic performance of the bridge structure after the earthquake;

[0006] Energy is consumed through bending deformation, which is not easy to be monitored, which is not conducive to bridge structural health monitoring and damage identification

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