Rini Mulyani - Research Student

Rini Mulyani

Telephone: 25728
Room: E110A

email : r.mulyani@sheffield.ac.uk

Research Group

Research Project

Extended Framework for Seismic Risk Assessment Case of Study West Sumatra-Indonesia

Fig 1

Seismic Risk Assessment requires a detailed knowledge of the seismic hazard, attenuation law, geological and morphological information, structural vulnerability, building stock inventory and population distribution. In countries with high seismic hazard, like Indonesia, ground shaking is not the only earthquake hazard. Hazard trigerred by earthquake such as tsunami, liquefaction, rock slides and land slides can be as dangerous as the ground shaking itself, as was demonstrated by the 2004 Great Sumatra Earthquake. Work at the university of Sheffield has led to the development of a basic Earthquake Risk Assessment for low to medium seismicity region (Kythreoti, 2002– case study Cyprus) and is currently being extended to cover medium to high seismicity region by Shaukat Khan (case study Pakistan). Kyriakides (2007) also developed a basic framework to analytical vulnerability assessment and this work is being extended by Sohaib Ahmad to deal with substandard constructions with low concrete strength (case study Pakistan). This study aims to extend the Earthquake Risk Assessment framework to deal with countries at high seismicity and all the hazard associated with earthquake. West Sumatra province in Indonesia will be the case study since the region is really prone to earthquake, tsunami, liquefaction and land slide, and is also densely populated.

Fig 2

The initial stage of the work requires spatial analysis to develop the seismic hazard map at the study area, which will be based on GIS software. Then, vulnerability analysis of the existing building stock will be conducted using the framework previously developed in the University of Sheffield. The results will be used to undertake seismic risk analysis to estimate damages and casualties caused by future earthquakes. Furthermore, earthquake mitigation strategies and recommendations for seismic strengthening of vulnerable existing building stock in West Sumatra will be the final outcome of this research.

The results of this study will benefit to decision maker in West Sumatra, insurance companies, structural engineers or anyone who might be interested in seismic hazard, mitigation strategies and seismic strengthening of structures.