Abstract
This paper develops a new analytical approach to elastic structure design based on optimum seismic reliability. The procedures are : (1) probabilistic earthquake moment response of m.d.o.f. lumped mass structures are estimated on the basis of stationary earthquake-like non-white random process with a given maximum acceleration intensity, a predominant period and a shaping factor of spectral charactreistics, (2) structural seismic reliability and its partial derivatives with respect to structural dynamic parameters are estimated and (3) optimum parameters are determined utilizing these response quantities. The approach is proved to be potentially useful by comparison of the results in terms of contour lines and perspectives of seismic reliability as a funtion of design parameters.
