Seismic risk analysis of multistory reinforced concrete structures in Saudi Arabia - ScienceDirect
In this research, analytical fragility curves for typical mid-rise plane reinforced concrete moment-resisting frames in Kingdom of Saudi Arabia, KSA, which is considered low-seismicity area, are presented. The fragility curves are developed for 12-story reinforced concrete structure designed according to Saudi Building Code under dead, live and seismic loads. Three cities with different seismic intensities; Abha, Jazan and Al-Sharaf were selected to cover various values of mapped spectral accelerations in KSA. The 0.2-second spectral accelerations range from 0.21 g to 0.66 g while the 1.0-second spectral accelerations range from 0.061 g to 0.23 g. Incremental Dynamic Analysis, IDA, was performed under twelve ground motions using SeismoStruct. Five performance levels; Operational, Immediate Occupancy, Damage Control, Life Safety and Collapse Prevention, which define different possible damage states of a building after an earthquake, were considered and monitored in the analysis. Based on the results of the IDA and statistical analysis, the probability of reaching or exceeding a specific damage state was calculated for each structural model in the three cities. The results were fitted and the fragility curves were developed and presented.
Veille Scientifique et Technologique quotidienne sur les thématiques de recherche du département Cosys de
l'Université Gustave Eiffel et plus largement sur les thématiques de la ville durable.
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