STATISTICAL ANALYSIS OF THE STRONG MOTION RECORDS AND PRELIMINARY STUDY OF THE UNSTEADY RESPONSE SPECTRUM

Pei Qiang; Quan Houhui; Tian Jing

doi:10.13204/j.gyjz201311013

Volume 43 Issue 11

Dec. 2014

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Pei Qiang, Quan Houhui, Tian Jing. STATISTICAL ANALYSIS OF THE STRONG MOTION RECORDS AND PRELIMINARY STUDY OF THE UNSTEADY RESPONSE SPECTRUM[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 54-58,83. doi: 10.13204/j.gyjz201311013

Citation:

Pei Qiang, Quan Houhui, Tian Jing. STATISTICAL ANALYSIS OF THE STRONG MOTION RECORDS AND PRELIMINARY STUDY OF THE UNSTEADY RESPONSE SPECTRUM[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 54-58,83. doi: 10.13204/j.gyjz201311013

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STATISTICAL ANALYSIS OF THE STRONG MOTION RECORDS AND PRELIMINARY STUDY OF THE UNSTEADY RESPONSE SPECTRUM

doi: 10.13204/j.gyjz201311013

1.
1. The Ｒ＆D Center of the Civil Engineering Technology,Dalian University,Dalian 116622,China;
2.
2. College of Civil Engineering and Architecture,Dalian University,Dalian 116622,China

Received Date: 2013-01-29
Publish Date: 2013-11-20

Abstract

Abstract

Strong-motion measurement is the basis of earthquake engineering. A lot of strong-motion datas were obtained by nationwide earthquake observation stations when earthquake occurred in Wenchuan,which provided a good data basis for analysis of strong earthquake records. In this paper,some spectral features of the peak acceleration are based on statistical analysis of strong motion records recorded in Wenchuan earthquake. Theory of earthquake response spectrum is the main method of seismic analysis and an important achievement based on depth research and analysis on acceleration characteristics. The max response of structure under earthquake input is only varying with period in traditional response spectrum during the whole time duration. The relationship between the maximum response and time duration can not be shown in the response spectrum of earthquake. The concept of unsteady response spectrum was proposed based on the moveable spectrum in this paper. Based on the conventional response spectrum,the time factor was taken into account in unsteady response spectrum research. Then the response spectrum could be studied based on time varying. As examples for strong motion records obtained from Wenchuan earthquake,two methods were proposed to research the effect of time duration on response spectrum.
- strong motion records,
- response spectrum,
- time varying characteristic,
- unsteady response spectrum

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References(15)

References

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