THEORETICAL AND NUMERICAL RESEARCH ON FORCED UNCOUPLING METHOD FOR SEISMIC RESPONSE OF NON-CLASSICALLY DAMPED LINEAR SYSTEM

Yu Ruifang; Zhou Xiyuan

doi:10.13204/j.gyjz200502015

Volume 35 Issue 2

Dec. 2014

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Yu Ruifang, Zhou Xiyuan. THEORETICAL AND NUMERICAL RESEARCH ON FORCED UNCOUPLING METHOD FOR SEISMIC RESPONSE OF NON-CLASSICALLY DAMPED LINEAR SYSTEM[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(2): 52-56,26. doi: 10.13204/j.gyjz200502015

Citation:

Yu Ruifang, Zhou Xiyuan. THEORETICAL AND NUMERICAL RESEARCH ON FORCED UNCOUPLING METHOD FOR SEISMIC RESPONSE OF NON-CLASSICALLY DAMPED LINEAR SYSTEM[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(2): 52-56,26. doi: 10.13204/j.gyjz200502015

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THEORETICAL AND NUMERICAL RESEARCH ON FORCED UNCOUPLING METHOD FOR SEISMIC RESPONSE OF NON-CLASSICALLY DAMPED LINEAR SYSTEM

doi: 10.13204/j.gyjz200502015

Yu Ruifang¹,
Zhou Xiyuan²

1.
1. Beijing Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Technology Beijing 100022;
2.
2. Institute of Earthquake Engineering,China Academy of Building Research Beijing 100013

Received Date: 2004-09-28
Publish Date: 2005-02-20

Abstract

Abstract

The enforcement process and theoretical background of the forced uncoupling method, together with its meanings of mathematics and physics, are analyzed by introducing complex mode superposition formula for calculating seismic responses of non-classically damped linear system. Furthermore, the errors of the forced uncoupling method and the measures of improving its precision by using pseudo-force iteration method based on real modes are discussed. The researchful results not only contribute to comprehend deeply essential of this method, but also make for discussing its scope of application and methodology of error control.
- non-classical damping,
- the forced uncoupling method,
- real mode