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Performance-based global reliability assessment of a high-rise frame-core tube structure subjected to multi-dimensional stochastic earthquakes

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Earthquake Engineering and Engineering Vibration 2022年第2期21卷 395-415页

作者： Liu Zhangjun Ruan Xinxin Liu Zixin School of Civil Engineering and Architecture Wuhan Institute of TechnologyWuhan 430074China Key Laboratory of Building Collapse Mechanism and Disaster Prevention Institute of Disaster PreventionChina Earthquake AdministrationSanhe 065201China

When evaluating the seismic safety and reliability of complex engineering structures,it is a critical problem to reasonably consider the randomness and multi-dimensional nature of ground *** this end,a proposed modeling strategy of multi-dimensional stochastic earthquakes is addressed in this *** improved seismic model has several merits that enable it to better provide seismic analyses of ***,at first,the ground motion model is compatible with the design response ***,the evolutionary power spectrum involved in the model and the design response spectrum are constructed accordingly with sufficient consideration of the correlation between different seismic ***,the random function-based dimension-reduction representation is applied,by which seismic modeling is established,with three elementary random *** simulations of multi-dimensional stochastic ground motions in a specific design scenario indicate the effectiveness of the proposed modeling ***,the multi-dimensional seismic response and the global reliability of a high-rise frame-core tube structure is discussed in detail to further illustrate the engineering applicability of the proposed *** analytical investigations demonstrate that the suggested stochastic model of multi-dimensional ground motion is available for accurate seismic response analysis and dynamic reliability assessment of complex engineering structures for performance-based seismic resistance design.

关键词： multi-dimensional stochastic ground motion dimension-reduction representation frame-core tube structure global dynamic reliability performance-based seismic design

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