10-10-2014, 02:02 PM
The work reported in this study pertains to the specification of earthquake loads
for multiply-supported engineering structures. We model the earthquake
motions as vector random processes and perform the response analysis within
the framework of theory of random vibrations. Attention is focused on obtaining
the description of power spectral density (psd) matrix of the vector excitation
following the method of critical excitations. The study reported here is an
extension of the recent work done by
Manohar and Sarkar (1995) and Sarkar and Manohar (1996) on seismic load
specification using method of critical excitations. Before we proceeded with the
details of the issues addressed in the study, we first present a brief review of
available methods for handling multi-support and multi-component seismic
excitations.
for multiply-supported engineering structures. We model the earthquake
motions as vector random processes and perform the response analysis within
the framework of theory of random vibrations. Attention is focused on obtaining
the description of power spectral density (psd) matrix of the vector excitation
following the method of critical excitations. The study reported here is an
extension of the recent work done by
Manohar and Sarkar (1995) and Sarkar and Manohar (1996) on seismic load
specification using method of critical excitations. Before we proceeded with the
details of the issues addressed in the study, we first present a brief review of
available methods for handling multi-support and multi-component seismic
excitations.