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A platform for research: civil engineering, architecture and urbanism
Probabilistic seismic vulnerability assessment of RC frames with vertical irregularities using fragility curves
The present study determines the vulnerability of reinforced concrete (RC) buildings under seismic loads using fragility analysis. This analysis takes into account factors such as unreinforced masonry (URM) infills, soft storeys, stiffness irregularities, and their combined effects. Nonlinear static analysis (pushover) was performed using the Seismostruct finite element program to generate fragility curves for four damage states (slight, moderate, severe, and extensive). The results showed that the presence of URM infills increases the probability of damage by 49%, 46%, 48%, and 16% for the slight, moderate, severe, and extensive damage states, respectively, compared to a bare frame model. Additionally, the presence of a soft storey increases the probability of moderate damage by 28% compared to a building with URM infills. The combination of URM infills and stiffness irregularities had the highest probability of damage, indicating the significant impact of stiffness irregularities on building performance in different damage states.
Probabilistic seismic vulnerability assessment of RC frames with vertical irregularities using fragility curves
The present study determines the vulnerability of reinforced concrete (RC) buildings under seismic loads using fragility analysis. This analysis takes into account factors such as unreinforced masonry (URM) infills, soft storeys, stiffness irregularities, and their combined effects. Nonlinear static analysis (pushover) was performed using the Seismostruct finite element program to generate fragility curves for four damage states (slight, moderate, severe, and extensive). The results showed that the presence of URM infills increases the probability of damage by 49%, 46%, 48%, and 16% for the slight, moderate, severe, and extensive damage states, respectively, compared to a bare frame model. Additionally, the presence of a soft storey increases the probability of moderate damage by 28% compared to a building with URM infills. The combination of URM infills and stiffness irregularities had the highest probability of damage, indicating the significant impact of stiffness irregularities on building performance in different damage states.
Probabilistic seismic vulnerability assessment of RC frames with vertical irregularities using fragility curves
Asian J Civ Eng
Magapu, Subhash (author) / Setia, Saraswati (author)
Asian Journal of Civil Engineering ; 24 ; 1761-1767
2023-09-01
7 pages
Article (Journal)
Electronic Resource
English
Seismic Fragility of Reinforced Concrete Frames with Vertical Irregularities
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