Vulnerability assessment of reinforced concrete buildings in Indonesia subjected to tsunami inundation forces

Abstract

Purpose This paper aims to evaluate the vulnerability of typical low-rise reinforced concrete (RC) buildings located in Indonesia subjected to tsunami loading. Design/methodology/approach The vulnerability of typical three-story RC buildings located in Indonesia subjected to tsunami loading is discussed using fragility curves. Buildings without openings in all stories and buildings with openings in the first story are considered. The fragility curves are obtained by performing tsunami pushover analysis for several load cases, using different tsunami load estimation standards and references. The generalized linear method is used as a curve fitting method to construct the fragility curves. Findings The fragility curves show that the three-story RC buildings without openings in all stories subjected to tsunami loading have a high probability of collapse. Openings in the first story will reduce the vulnerability of the buildings. Originality/value Fragility curves are obtained by carrying out tsunami pushover analysis to evaluate the vulnerability of typical three-story RC buildings located in Indonesia. The results of this study show the need to include tsunami loads in the design code for Indonesian buildings and the benefits of having openings in the first story of the building.

Understanding the response of coastal infrastructure to tsunami impacts

“…It is not uncommon for studies (e.g. Attary et al, 2017;Hanggara & Wijeyewickrema, 2019) to assume maximum force to be a product of maximum depth and maximum velocity (otherwise referred to as equivalent maximum force). Secondly, the relative influence of each TIM or combination of TIM is assumed to be linear throughout the…”