STUDY ON EVALUATION OF DYNAMIC DUCTILITY INDEX OF SPORT HALLS BASED ON ELASTO-PLASTIC EARTHQUAKE RESPONSE ANALYSIS

Abstract

The present paper discuses on a dynamic seismic performance index of structure, _d I_s, and a dynamic ductility index, _d F, of a brace installed in the longitudinal direction of school sport halls. Based on the result of the elasto-plasitc dynamic analysis depending on various input levels, _d F and _d I_s are re-studied. As numerical parameters, a yield base shear coefficient of braces of substructure, C_y , and a capacity limit deformation of braces as well as hysteresis types are considered, and their effects on _d F and _d I_s are investigated.