Analysis method and device for aseismic ability of quayside bridge structure

Abstract

The invention discloses an analysis method and device for aseismic ability of a quayside bridge structure, belonging to the field of earthquake engineering. The analysis method includes determining the aseismic ability level and measure index of the quayside bridge structure based on damage level of the quayside bridge structure, establishing an elastic-plastic finite element analysis model of thequayside bridge structure and selecting uncertainty random variables of the quayside bridge structure, extracting random variable samples, setting up a finite element analysis model and obtaining thecorresponding sample of the finite element analysis model. The aseismic ability curve of the quayside bridge structure is obtained by elastic-plastic static pushover analysis on the sample of the finite element analysis model. The aseismic ability value of different damaging level is extracted from the sample based on the aseismic ability level and measure index of the quayside bridge structure.The aseismic ability value is probabilistically counted, calculated and output the aseismic ability of the quayside bridge structure with structural uncertainty considers. The analysis method and device for aseismic ability of the quayside bridge structure evaluate the aseismic ability of the quayside bridge structure in case of structural uncertainty, which provides a reference for aseismic design and aseismic reinforcement for the quayside bridge structure.

Description

technical field [0001] The invention relates to the field of earthquake engineering, in particular to a method and device for analyzing the anti-seismic capability of a quay bridge structure. Background technique [0002] Shore-to-shore container cranes, referred to as quayside cranes, are one of the important loading and unloading equipment in container ports. At the same time, the quay bridge is also one of the structures most vulnerable to earthquake damage in the port. Once the severely damaged quay bridge needs to be repaired and replaced, the time cost and economic cost will be very high, and it will also have a huge disadvantage to the post-disaster recovery of the port. influences. [0003] In terms of seismic research of quay bridge structures, the existing literature reports usually use the finite element time-history analysis method to calculate the seismic response of quay bridge structures, and then determine the seismic performance of quay bridge structures ba...

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Problems solved by technology

[0006] In order to solve the problem that it is difficult to directly apply other seismic design codes to analyze the seismic capacity of the quay bridge structure in the prior art, and the distribution characteristics of random variables will also affect the seismic capacity of the quay bridge structure, the embodiment of the present invention provides a quay bridge Method and device for analyzing seismic capacity of bridge structures

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