Modified Damage Index Calculation Method for Frame-Shear Wall Building Considering Multiple Demand Parameters

In this study, multiple objectives on earthquake damage assessment procedures have been investigated. The Unified performance-based design (UPBD) method has been used to design the Reinforced Concrete (RC) frame shear wall building. First, the Damage index (DI) of the building has been estimated by using Park and Ang method. It has been found that this method is highly time-consuming. Hence, it is not found suitable for large scale investigation. Therefore, a new approach has been suggested to reduce the computational time and efforts in the case of complex structures in evaluating the global damage index (GDI). In this present study, the most three influencing parameters of the building have been considered to find the GDI. It has also been observed that the most damage occurs on the ground storey of the building. The suggested method efficiently calculates a reliable GDI that can assess building damage from small to large scale buildings.