Estimation of seismic spectral acceleration in Peninsular India

Journal of Earth system science

S T G Raghu Kanth1¹  R N Iyengar2² 

[1] Department of Civil Engineering, Indian Institute of Technology, Guwahati 781 039, India.$$;Department of Civil Engineering, Indian Institute of Science, Bangalore 560 012, India.$$

关键词: Attenuation;    response spectra;    Peninsular India;    site coefficients.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

Peninsular India (PI), which lies south of 24°N latitude, has experienced several devastating earthquakes in the past. However, very few strong motion records are available for developing attenuation relations for ground acceleration, required by engineers to arrive at rational design response spectra for construction sites and cities in PI. Based on a well-known seismological model, the present paper statistically simulates ground motion in PI to arrive at an empirical relation for estimating 5% damped response spectra, as a function of magnitude and source to site distance, covering bedrock and soil conditions. The standard error in the proposed relationship is reported as a function of the frequency, for further use of the results in probabilistic seismic hazard analysis.

【 授权许可】

Unknown