Vulnerability Study of Public Buildings Subjected to Earthquake Event

Abstract

The present article addresses on the earthquake study due to performance of critical frame reinforced concrete building. The buildings are analysed using Finite Element Modeling (FEM) under different types of analyses including Free Vibration Analysis (FVA), and Time History Analysis (THA) with varies earthquake intensities. The performances of the structure are shown by the yield point at beam-column connections where the internal forces at beam elements exceed the design capacity of the beams. The performance of critical frame reinforced concrete building when subjected to earthquake motion (Near source: Acheh) was addressed. The level of the damage state (Minor, Moderate, Major, Collapse level) has been defined as well. As a result, a greater damage index means that the members yield earlier and the plastic rotation is larger and vice versa. In general, there are no significant damage occurred to the structure. However, some non-structural elements of the building are expected to experience minor damages. These two buildings has no structural response to the earthquake because both Damage Index are less than 1.000. The study indicates that more than 50% of the buildings produced dynamic amplification factors of slightly more than one indicating not much of a dynamic response to the buildings.