Simplified Method of Isolated Structure Collapse Capacity Part, (I): Ground Motion Intensity Measure

Abstract:

The equivalent velocity spectrum as a new ground motion intensity measure (IM) characterization parameter is proposed in this paper. 44 far field ground motions and 20 near-field high-speed pulse seismic waves were used for single-degree-freedom (SDOF) nonlinear time history analysis, respectively. The correlations between five IMs and maximum deformation for SDOF at various periods and different yield coefficients were analyzed. The results show that for the structures with medium-to-long period, the correlation coefficient average value of the proposed equivalent speed and maximum deformation is more than 0.6, and maximum of those is more than 0.9. The correlation coefficient average value by using the proposed equivalent speed under far field ground motions is more than those under near field ground motions. The P-delta effect on the correlation coefficients between proposed IM for the structures with medium-to-short period is significant

• Periodical: Applied Mechanics and Materials (Volumes 275-277)
• Pages: 1466-1470
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.275-277.1466
• Online since: January 2013
• Authors: Yang Liu, Wen Guang Liu, Wen Fu He, Qiao Rong Yang
• Keywords: Correlation, Equivalent Velocity Spectrum, Ground Motion Intensity Measure, SDOF

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