Underground structure toughness anti-seismic system with additional dampers and seismic isolation supports

Abstract

The invention relates to an underground structure toughness anti-seismic system with additional dampers and seismic isolation supports, and belongs to the technical field of underground structure seismic resistance. The underground structure toughness anti-seismic system is used for reducing seismic energy, seismic response and residual deformation input into an underground structure, improving the seismic capacity of the underground structure and meanwhile achieving rapid recovery of functions of a seismic structure after an earthquake, and comprises enclosure structures, the underground structure, embedded parts, the dampers and the seismic isolation supports, wherein the enclosure structures are distributed on the two sides of the underground structure, fertilizer grooves are formed between the underground structure and the enclosure structures, the seismic isolation supports are arranged between a bottom plate of the underground structure and a soil body, the embedded parts are arranged on the enclosure structures and side walls of the underground structure, the dampers are connected between the enclosure structures and the side walls of the underground structure through the embedded parts, the dampers are horizontally arranged, and the distance and parameters of the dampers depend on the horizontal rigidity of the surrounding rock-soil body and the allowable maximum deformation of the underground structure. The underground structure toughness anti-seismic system is simple in form and conforms to the concept of seismic toughness of the underground structure.

Description

technical field [0001] The invention relates to an underground structure toughness anti-seismic system with an additional damper and an anti-seismic support, belonging to the field of anti-seismic technology of underground structures. Background technique [0002] At present, my country is undergoing large-scale urban space development and construction, and the construction of urban underground structures represented by subways has made rapid progress. Historical earthquake damage shows that during the earthquake, the gravity and vertical inertial force of the overlying soil of the underground structure cause a significant increase in the axial compression ratio of the structure's central column and a decrease in the lateral deformation capacity. damage, leading to the collapse of the entire structure. The underground structure exists in the soil, and its seismic response is constrained by the deformation of the surrounding rock and soil. Therefore, the key to reducing the ...

AI Technical Summary

Problems solved by technology

Therefore, the traditional seismic isolation control measures for underground structures cannot be called a complete earthquake-resistant and resilient structural system for underground structures.

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