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A platform for research: civil engineering, architecture and urbanism
Blast Fragility of Steel Moment-Resisting Buildings for Different Seismic Design Levels
The main aim of this study is to evaluate how much the seismic design level can affect the fragility of steel moment-resisting buildings against external explosion hazard. To this end, the blast fragility is developed for steel moment-resisting buildings designed for various seismic intensities. Three steel moment-resisting buildings with different heights of 4, 8 and 12 stories are designed for two seismic hazard levels (10% and 2% exceedance probabilities in 50 years). A sensitivity analysis has been first performed to show high importance of probabilistic-based assessment. Fragility curve has been then developed under explosion hazard. The results show that buildings are safe against explosion hazard with the charge weight less than 4000 kg whereas low-rise buildings are strongly vulnerable against the higher charge weight. Blast performance of high-rise buildings is more reliable than that of low-rise buildings. It can be found from the results that increasing the seismic design level of low-rise buildings can lead to safer building against explosion hazard whereas in high-rise buildings, this cannot be effective to make building safer against explosion hazard.
Blast Fragility of Steel Moment-Resisting Buildings for Different Seismic Design Levels
The main aim of this study is to evaluate how much the seismic design level can affect the fragility of steel moment-resisting buildings against external explosion hazard. To this end, the blast fragility is developed for steel moment-resisting buildings designed for various seismic intensities. Three steel moment-resisting buildings with different heights of 4, 8 and 12 stories are designed for two seismic hazard levels (10% and 2% exceedance probabilities in 50 years). A sensitivity analysis has been first performed to show high importance of probabilistic-based assessment. Fragility curve has been then developed under explosion hazard. The results show that buildings are safe against explosion hazard with the charge weight less than 4000 kg whereas low-rise buildings are strongly vulnerable against the higher charge weight. Blast performance of high-rise buildings is more reliable than that of low-rise buildings. It can be found from the results that increasing the seismic design level of low-rise buildings can lead to safer building against explosion hazard whereas in high-rise buildings, this cannot be effective to make building safer against explosion hazard.
Blast Fragility of Steel Moment-Resisting Buildings for Different Seismic Design Levels
Int J Steel Struct
Dadkhah, Hamed (author) / Mohebbi, Mohtasham (author)
International Journal of Steel Structures ; 21 ; 1988-2003
2021-12-01
16 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2017