Fundamental study on Application of Multiple Shear Spring model to the virtual building model of Integrated Earthquake Simulator (IES)

Integrated Earthquake Simulator (IES) have been developed to provide reasonable earthquake disaster information that is important to reduce damage from earthquakes. In order to predict earthquake disaster with high reliability, a multiple shear spring (MSS) model was applied to the multi degree of freedom (MDOF) model implemented in IES. MSS model is able to simulate a 2D elasto-plastic behavior of building structures. Further, a new MSS model which can consider the difference of story stiffness in each direction was proposed. This study carried out elasto-plastic response analyses by the conventional MDOF model, MSS model and the new MSS model to evaluate the effect of the MSS models on the maximum story drift angle.