Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reliability-based design approach for high-rise buildings subject to earthquakes and strong winds
https://orcid.org/0000-0002-7414-1717
Highlights A reliability-based approach is proposed herein to compute the load modifications. Joint effect of individual/concurrent earthquakes and strong winds are considered. An approach is presented for load combination calibration against various hazards.
Abstract Current design specifications often deal with seismic and wind events in isolation, which may underestimate the failure probability. In this paper, a reliability-based approach is presented to compute the load modification factor for designing high-rise buildings in regions prone to earthquake and strong wind events. The paper illustrates the proposed procedure from the construction of hazard models to load modification calculations, which is implemented in a 42-story steel frame-reinforced concrete (RC) core tube building located in the Dali region, southwest of China. The uncertainties associated with hazard models, material properties, input loads, demand models and structural capacity are considered to improve the accuracy of failure probability estimations. The effects of individual and concurrent earthquakes and strong winds are accounted for in the reliability-based design method. Then, the load modification factor is determined by comparing the calculated failure probability with the rational target value. Finally, a suggested combined factor will be used to modify the value of the design wind load in the limit state function. More work is needed before load modification can be applied in practice. However, this study offers a practical and extensible approach to improve the future calibration of load combination criteria for designing high-performance structures against various hazards.
Reliability-based design approach for high-rise buildings subject to earthquakes and strong winds
https://orcid.org/0000-0002-7414-1717
Highlights A reliability-based approach is proposed herein to compute the load modifications. Joint effect of individual/concurrent earthquakes and strong winds are considered. An approach is presented for load combination calibration against various hazards.
Abstract Current design specifications often deal with seismic and wind events in isolation, which may underestimate the failure probability. In this paper, a reliability-based approach is presented to compute the load modification factor for designing high-rise buildings in regions prone to earthquake and strong wind events. The paper illustrates the proposed procedure from the construction of hazard models to load modification calculations, which is implemented in a 42-story steel frame-reinforced concrete (RC) core tube building located in the Dali region, southwest of China. The uncertainties associated with hazard models, material properties, input loads, demand models and structural capacity are considered to improve the accuracy of failure probability estimations. The effects of individual and concurrent earthquakes and strong winds are accounted for in the reliability-based design method. Then, the load modification factor is determined by comparing the calculated failure probability with the rational target value. Finally, a suggested combined factor will be used to modify the value of the design wind load in the limit state function. More work is needed before load modification can be applied in practice. However, this study offers a practical and extensible approach to improve the future calibration of load combination criteria for designing high-performance structures against various hazards.
Reliability-based design approach for high-rise buildings subject to earthquakes and strong winds
https://orcid.org/0000-0002-7414-1717
Highlights A reliability-based approach is proposed herein to compute the load modifications. Joint effect of individual/concurrent earthquakes and strong winds are considered. An approach is presented for load combination calibration against various hazards.
Abstract Current design specifications often deal with seismic and wind events in isolation, which may underestimate the failure probability. In this paper, a reliability-based approach is presented to compute the load modification factor for designing high-rise buildings in regions prone to earthquake and strong wind events. The paper illustrates the proposed procedure from the construction of hazard models to load modification calculations, which is implemented in a 42-story steel frame-reinforced concrete (RC) core tube building located in the Dali region, southwest of China. The uncertainties associated with hazard models, material properties, input loads, demand models and structural capacity are considered to improve the accuracy of failure probability estimations. The effects of individual and concurrent earthquakes and strong winds are accounted for in the reliability-based design method. Then, the load modification factor is determined by comparing the calculated failure probability with the rational target value. Finally, a suggested combined factor will be used to modify the value of the design wind load in the limit state function. More work is needed before load modification can be applied in practice. However, this study offers a practical and extensible approach to improve the future calibration of load combination criteria for designing high-performance structures against various hazards.
Reliability-based design approach for high-rise buildings subject to earthquakes and strong winds
Zheng, Xiao-Wei (Autor:in) / Li, Hong-Nan (Autor:in) / Gardoni, Paolo (Autor:in)
Engineering Structures ; 244
25.06.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch