Classification Research and Improvement on the Ground Motion Selection and Scaling for Time History Analysis

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Yang, Chao^1,2 ; Wu, Chen^1,2 ; Xiang, Hong^1,2

School of Civil Engineering, Fujian University of Technology, Fuzhou

350118, China^1

Fujian Provincial Key Laboratory of Advanced Technology and Informatization in Civil Engineering, Fuzhou

350118, China^2

关键词: Energy distributions;    Fixed amplitude;    Ground motion selections;    Ground motions;    Low dispersions;    Matching methods;    Modulation coefficients;    Time history analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/6/062075/pdf
DOI  :  10.1088/1757-899X/392/6/062075

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Some representative methods of selecting and scaling ground motion are classified into two groups based on the different goals of adjustment, including peak/spectral value matching method and spectrum shape matching method. The both methods do not consider the effect of duration. And the amplitude is adjusted based on the fixed amplitude modulation coefficient, but not according to the characteristics of ground motion energy distribution. Therefore, the method of scaling and selecting ground motion based on maximum instantaneous input energy is proposed. The amplitude is adjusted according to the characteristics of energy distribution of the seismic wave in the new method. Meanwhile, the effect of duration is taken into account. In addition, the method has loosed selection condition of the seismic wave, small calculation and low dispersion of results.