DYNAMIC RESPONSE CHARACTERISTICS OF DOMES WITH LARGE SPAN IMPLEMENTED BY HYSTERESIS DAMPERS FOR EARTHQUAKE ISOLATION

摘要

The purpose of this paper is to study how the stiffness and weights of the support structue inflence the response of the larg span dome with seismic isolation system,when it's subjected to horizontale arthquakes.This system is applied to a latticed dome with about 300m span,and dynamic response analyses with various conditions are carried out to make it clear. From the results of the numerical studies,it is confirmed that the seismic isolation system with hysteresis dampers can almost reduce the vertical and horizontla acceleration responses of the dome,independent of the stiffness and weights of the support structure.