Inverse reliability-based design of shear buildings supported by springs with stochastic stiffnesses

摘要

A straightforward and efficient stiffness design method is developed for a shear building supported by a pair of swaying and rocking springs with stiffnesses given as statistically independent normal variates. The story stiffnesses are determined with the use of the closed form stiffness solution for specified fundamental frequency and translational eigenmode so that the probability of the seismic mean maximum interstory drifts not exceeding prescribed values would coincide with the specified value.