Probabilistic Seismic Hazard Analysis of Vadodara Region

Autor: Payal Mehta, Tejas P. Thaker
Rok vydání: 2020
Předmět:
Zdroj: Lecture Notes in Civil Engineering ISBN: 9789811562327
DOI: 10.1007/978-981-15-6233-4_25
Popis: The Vadodara region falls in seismic zone-III as per IS 1893:2016 and surrounded by highly active seismic sources. Seismicity of the Vadodara region has been determined by the evaluation of peak ground acceleration (PGA) model considering probabilistic framework. Probabilistic analysis has been carried out considering the earthquake data for the time interval between 1668 and 2017. The seismic parameter ‘b’ has been estimated as 0.815 ± 0.001 by adopting suitable recurrence relation. Four ground motion prediction relationships have been adopted to estimate the hazard of the study region. The PGA model at rock level has been quantified by dividing the study region into the grid size of 1 km × 1 km, which varies from 0.054 to 0.071 g and 0.104 to 0.139 g for 10% and 2% probability of occurrence in 50 years, respectively. The results will be further useful for designing earthquake-resistant structures, risk mitigation and future city planning.
Databáze: OpenAIRE