Simplified estimation method for first excursion probability of secondary system with gap

摘要

A simplified estimation method for the first excursion probability of the secondary system with gap such as pipings, tanks and other mechanical equipment having mechanical supports and joints installed on the primary system such as buildings is proposed. First, an analytical method for the secondary system with gap is presented. This method is based on the equivalent linearization method. As input excitations, artificial time histories are used. Next, using the proposed method, some numerical examples are shown.