Wave selection and efficient design method and system for seismic mitigation and isolation structure

Abstract

The invention discloses a seismic mitigation and isolation structure wave selection and efficient design system. The method comprises the following steps: establishing a seismic wave database; preliminarily arranging a seismic mitigation and isolation scheme, and calculating the period extension or additional damping ratio of the seismic mitigation and isolation structure; determining a standard design spectrum of a certain site; preferably selecting seismic waves in the seismic wave database according to a multi-band control method; performing systematic calculation of the fitting degree of the standard design spectrum and the seismic wave response spectrum; designing a response spectrum in combination with fortification and rare occurrence earthquakes, and performing systematic multi-index evaluation on the seismic mitigation and isolation scheme effect; modifying the scheme according to the evaluation result until the system evaluation requirement is met; carrying out finite element software seismic mitigation and isolation analysis verification; and completing the shock absorption and isolation design. The high-efficiency seismic mitigation and isolation design method is realized, an analysis and evaluation system is comprehensively designed, an integrated operation process is realized, the calculation and analysis efficiency is greatly improved, the number of repeated iterations in the seismic mitigation and isolation design process is reduced, and the method is suitable for popularization and application of high-efficiency seismic mitigation and isolation design in various regions.

Description

Technical field [0001] The present invention relates to a selection and efficient design method and system of reduction shock structures, belonging to the field of reduction in seismic structures in the field of civil engineering. Background technique [0002] When the shock design is designed, the time analysis is an essential link, which is reasonable, and the ground dynamic input suitable for the site conditions is a prerequisite for the development of structural time history. All national scholars conduct research on the earthquake selection of time history, proposing various types of wave method, when my country is selected, the current "Building Seismic Design Specification" is based on the structural analysis of the elastic time course and the structure of the vibration decomposition reaction spectrum. The bottom shear calculation results, combined with the seismic influence coefficient curve, judging the application of the ground motion. The calculation method is large, e...

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Problems solved by technology

[0005] In order to solve the above problems, the object of the present invention is to provide a method and system for wave selection and high-efficiency design of shock-absorbing and isolation structures. Inaccurate wave selection and time-consuming problems. On the other hand, based on the code design spectrum for fortification earthquakes and rare earthquakes, multi-index evaluations such as spectral damping coefficient evaluation and spectral isolation layer displacement evaluation are carried out to efficiently determine the seismic isolation design. The scheme solves the number of repeated iterations in the time history analysis process and improves the seismic isolation design. The combination of the two forms an efficient design method and system, realizes the integrated operation process, and is suitable for the promotion and application of efficient seismic isolation design in various regions

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