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Probabilistic seismic resilience quantification of a reinforced masonry shear wall system with boundary elements under bi-directional horizontal excitations.
- Source :
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Engineering Structures . Nov2021, Vol. 247, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
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Abstract
- • The seismic resilience quantification of reinforced masonry shear wall buildings. • Fragility surfaces of the reinforced masonry shear walls with boundary elements. • Bidirectional horizontal seismic excitation. • Out-of-plane contribution of shear walls. • Probabilistic seismic resilience qunatification. The concept of resilience is gaining increased attention in disaster management due to the recent awareness of the need to reduce the detrimental post-event effects of natural disasters, e.g., earthquakes. Resilience is a practical concept that includes pre-event (preparedness and mitigation) and post-event (response and recovery) activities. Quantitative resilience assessment approaches are needed to compare the available mitigation strategies to decide on the most suitable strategy and provide better support for decision-making procedures. In this study, a methodology for quantifying the seismic resilience of reinforced masonry shear wall (RMSW) buildings with end-confined masonry boundary elements is implemented. The uncertainties associated with structural and non-structural losses and estimated recovery time uncertainties are considered while quantifying the resilience index of RMSW buildings. The archetype buildings studied have 8-, 10-, and 12-storey heights and are located in Vancouver, representing a high seismic zone in Canada. First, a numerical model was developed using OpenSees to derive the fragility surface for the studied archetypes subjected to bi-directional horizontal excitation. Second, a Monte Carlo simulation was performed to quantify the resilience index of each archetype considering the above-mentioned uncertainties. The results prove the robustness of ductile RMSW buildings having end-confined MBEs in mitigating the losses associated with disaster events. Additionally, the findings provide comprehensive and valuable information for earthquake mitigation measures and disaster risk reduction programmes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01410296
- Volume :
- 247
- Database :
- Academic Search Index
- Journal :
- Engineering Structures
- Publication Type :
- Academic Journal
- Accession number :
- 152847672
- Full Text :
- https://doi.org/10.1016/j.engstruct.2021.113023