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<p>This study examines the seismic vulnerability and resilience of high-rise reinforced concrete buildings with flexible basements, serving as a soil-structure interaction, under far-fault (FF) and near-fault (NF) scenarios using a probabilistic approach and functionality curves. The study adheres to a comprehensive framework for implementing the seismic resilience index (SRI) method. Nevertheless, it is crucial to acknowledge that this framework is not limited solely to high-rise structures. Initially, the evaluation of the physical responses of structures to seismic occurrences is carried out by utilizing the non-linear time history analysis (NL-THA), which is represented by a set of ground motion records. This is followed by the development of incremental Dynamic Analysis (IDA) curves, which are then followed by fragility curves and vulnerability curves for 4- damage states proposed by HAZUS-MH in FEMA. The methodology also incorporates the Seismic Resilience Index as a post-seismic indicator to evaluate structural restoration. This evaluation includes recovery time, direct losses, and robustness through a resilience-building indicator and functionality curve. The findings reveal significant variations in seismic vulnerability among the buildings, with vulnerability risks ranked from lowest to highest as BHR-4, BHR-1, BHR-3, BHR-5, BHR-2, and BHR-6. Correspondingly, the buildings are ranked from least to most resilient as BHR-6, BHR-2, BHR-5, BHR-3, BHR-1, and BHR-4. As a whole, the results show that buildings are more resilient to seismic events when the scenarios are FF rather than NF. The research emphasizes the significance of incorporating recovery time and robustness into seismic resilience assessments of high-rise buildings. Eventually, building resilience against earthquakes aligns with the United Nations’ Sustainable Development Goal 11, which aims to make cities and human settlements inclusive, safe, resilient, and sustainable by enhancing the ability of buildings to withstand and recover from seismic events.</p>

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Post-seismic recovery and performance of high-rise RC buildings in diverse earthquake scenarios: a resilience-based approach

  • 期刊论文

  • 发表日期：

    2025年10月15日

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  • Moustafa Moufid Kassem,
  • Fadzli Mohamed Nazri,
  • H’ng Chee Yin,
  • Salmia Beddu

摘要

This study examines the seismic vulnerability and resilience of high-rise reinforced concrete buildings with flexible basements, serving as a soil-structure interaction, under far-fault (FF) and near-fault (NF) scenarios using a probabilistic approach and functionality curves. The study adheres to a comprehensive framework for implementing the seismic resilience index (SRI) method. Nevertheless, it is crucial to acknowledge that this framework is not limited solely to high-rise structures. Initially, the evaluation of the physical responses of structures to seismic occurrences is carried out by utilizing the non-linear time history analysis (NL-THA), which is represented by a set of ground motion records. This is followed by the development of incremental Dynamic Analysis (IDA) curves, which are then followed by fragility curves and vulnerability curves for 4- damage states proposed by HAZUS-MH in FEMA. The methodology also incorporates the Seismic Resilience Index as a post-seismic indicator to evaluate structural restoration. This evaluation includes recovery time, direct losses, and robustness through a resilience-building indicator and functionality curve. The findings reveal significant variations in seismic vulnerability among the buildings, with vulnerability risks ranked from lowest to highest as BHR-4, BHR-1, BHR-3, BHR-5, BHR-2, and BHR-6. Correspondingly, the buildings are ranked from least to most resilient as BHR-6, BHR-2, BHR-5, BHR-3, BHR-1, and BHR-4. As a whole, the results show that buildings are more resilient to seismic events when the scenarios are FF rather than NF. The research emphasizes the significance of incorporating recovery time and robustness into seismic resilience assessments of high-rise buildings. Eventually, building resilience against earthquakes aligns with the United Nations’ Sustainable Development Goal 11, which aims to make cities and human settlements inclusive, safe, resilient, and sustainable by enhancing the ability of buildings to withstand and recover from seismic events.