ASSESSMENT ON ASEISMIC PERFORMANCE OF REGULAR STRUCTURES BY IMPROVED CAPACITY SPECTRUM METHOD

Lin Yi-yong; Zhu Jia-ning; Wang Jian-qiang

doi:10.13204/j.gyjz200607011

Volume 36 Issue 7

Dec. 2014

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Lin Yi-yong, Zhu Jia-ning, Wang Jian-qiang. ASSESSMENT ON ASEISMIC PERFORMANCE OF REGULAR STRUCTURES BY IMPROVED CAPACITY SPECTRUM METHOD[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(7): 45-48,102. doi: 10.13204/j.gyjz200607011

Citation:

Lin Yi-yong, Zhu Jia-ning, Wang Jian-qiang. ASSESSMENT ON ASEISMIC PERFORMANCE OF REGULAR STRUCTURES BY IMPROVED CAPACITY SPECTRUM METHOD[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(7): 45-48,102. doi: 10.13204/j.gyjz200607011

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ASSESSMENT ON ASEISMIC PERFORMANCE OF REGULAR STRUCTURES BY IMPROVED CAPACITY SPECTRUM METHOD

doi: 10.13204/j.gyjz200607011

1.
1. College of Civil Engineering,Xi'an University of Architecture and Technology Xi'an 710055;
2.
2. College of Civil Engineering,Zhengzhou University Zhengzhou 450002

Received Date: 2006-01-13
Publish Date: 2006-07-20

Abstract

Abstract

The usual capacity spectrum method of structural seismic performance evaluation can only consider the first response mode of structures,and the influence of high modes can not be taken into account,so the error is introduced.A new type of equivalent single-degree-of-freedom(SDOF) is set up using the equivalent mode and equivalent mode participation coefficient.Then the capacity spectrum method is used to evaluate the seismic performance of structures.The method can avoid the nonlinear dynamic time-history analysis,and can get more seismic information on structures comparing with the latter.The example analysis shows that the high modes have little influence on the structural response in the elastic stage but have major influence in the inelastic stage,and the example also shows that the response obtained using the usual capacity method is smaller than the actual response of structures,so it biases toward the insecurity,while the rational result can be got by the improved capacity spectrum method aseismic.
- regular structures,
- aseismic performance evaluation,
- improved capacity spectrum method

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References(12)

References

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