Abstract
The analytical seismic fragility analysis (SFA) of a typical mid-rise steel building frame considered to be located in the Guwahati city of Northeast India is presented in the performance-based earthquake engineering (PBEE) framework. The approach starts with a detailed probabilistic seismic hazard analysis (PSHA) of the Guwahati city to obtain hazard curve parameters. Subsequently, nonlinear time history analyses (NLTHA) are carried out to obtain displacement demand model parameters for the example frame. For dynamic analysis, a representative ground motion bin is prepared judiciously. As the recorded accelerograms in the region is limited, the bin is formed with recorded as well as artificially and synthetically generated data. The structural capacities at various limit states are obtained from random pushover analysis (RPA). With the estimated seismic hazard, demand and capacity parameters, fragility curves are generated for different performance levels. The annual probability of failure is finally estimated based on the seismic hazard and the fragility curves.
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Acknowledgements
The financial support received in TSD Scheme No. DST/TSG/STS/2012/45, 21.1.13 from the DST, Govt. of India (for the project entitled ‘Seismic vulnerability …. special emphasis to North Eastern Region’) for this work is gratefully acknowledged.
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Mukherjee, S., Ghosh, S., Ghosh, S., Chakraborty, S. (2019). Analytical Seismic Fragility Analysis of Existing Building Frame in Northeast India. In: Rao, A., Ramanjaneyulu, K. (eds) Recent Advances in Structural Engineering, Volume 1. Lecture Notes in Civil Engineering , vol 11. Springer, Singapore. https://doi.org/10.1007/978-981-13-0362-3_82
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DOI: https://doi.org/10.1007/978-981-13-0362-3_82
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