INELASTIC DYNAMIC RESPONSE CHARACTERISTICS OF TORSIONALLY UNBALANCED SINGLE-STORY MODELS : Reinforced concrete structure

Abstract

This paper presents parametric studies to obtain inelastic dynamic response characteristics of torsionally unbalanced single-story models. The following four models are analyzed ; 1) models with unbalanced mass, 2) models with unbalanced shear-strength, 3) models with unbalanced stiffness and 4) models with unbalanced shear-strength and stiffness. Major findings are as follows : (1) the total energy input is constant ; and (2) the damage concentration can be estimated by the first eigen mode and by the deviation of the yield shear force from the optimum one.