Selection of real earthquake accelerograms for structural dynamic analysis and energy evaluation

Article

DOI: 10.1007/s11431-011-4541-7

Cite this article as:
Ye, X. & Wang, D. Sci. China Technol. Sci. (2011) 54: 2878. doi:10.1007/s11431-011-4541-7

Abstract

Real earthquake accelerograms are used in structural dynamic analysis. The criteria for record database establishment, record screening, selection principle, scaling adjustment, and sampling size are discussed in the present paper. An optimized selection method using coupled genetic and greedy algorithms is proposed, and energy input characteristics for the records which are selected only through matching acceleration design spectrum are analyzed. Using the proposed method, the mean and target spectra can reach a good agreement within a period range of interest. The dispersion among the response spectra of the different records is small, and the tolerance of the spectrum value corresponding to each period in the important period scope can be controlled more strictly than the specified limit. If the structural cumulative damage or structures with energy-dissipation components are considered, the records selected using the method that only match the acceleration design spectrum are not applicable. In this case, the selection method that considers the energy input demand is recommended.

Keywords

dynamic analysis strong motion records genetic algorithm energy input response spectrum 

Copyright information

© Science China Press and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.School of Civil and Hydraulic EngineeringHefei University of TechnologyHefeiChina
  2. 2.School of Earth and Space SciencesUniversity of Science and Technology of ChinaHefeiChina

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