Comparison of seismic responses of a reticulated dome under stochastic uniform and spatially correlated and coherent multiple-support excitation for a scenario seismic event
| العنوان: | Comparison of seismic responses of a reticulated dome under stochastic uniform and spatially correlated and coherent multiple-support excitation for a scenario seismic event |
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| المؤلفون: | Y.G. Li, H.P. Hong, Feng Fan, TJ Liu |
| المصدر: | International Journal of Space Structures. 35:113-125 |
| بيانات النشر: | SAGE Publications, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 021110 strategic, defence & security studies, Spatial correlation, 0211 other engineering and technologies, 020101 civil engineering, 02 engineering and technology, Building and Construction, Conservation, Coherence (statistics), 0201 civil engineering, Spatial coherence, Dome (geology), Architecture, Excitation, Geology, Seismology, Civil and Structural Engineering, Event (probability theory) |
| الوصف: | Structures with multiple supports can be sensitive to spatial coherence and spatial correlation. Since the historical recordings are insufficient for selecting records that match predefined inter-support distances of a structure, desired seismic magnitude (or intensity) and site to seismic source distance for structural analysis, such records need to be simulated. In this study, we use a procedure that is extended based on the stochastic point-source method to simulate records for scenario events. The application of the simulated records to a single-layer reticulated dome with multiple supports is presented. The application is aimed at investigating the differences between the responses subjected to spatially uniform excitation and to spatially correlated and coherent multiple-support excitation for a scenario seismic event, assessing the relative importance of the spatial coherence and spatial correlation on the responses, and evaluating the effect of the uncertainty in the spatially correlated and coherent records for a scenario event on the statistics of the seismic responses. The analysis results indicate that the spatial correlation of the Fourier amplitude spectrum has a predominant influence on the linear/nonlinear responses, and the consideration of spatially correlated and coherent excitation at multiple supports is very important. The consideration of uniform excitation severely underestimates the seismic load effects as compared to those obtained under spatially correlated and coherent multiple-support excitation. |
| تدمد: | 2059-8033 0956-0599 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::a25c664dcb321fac61cfe40178f9b8c0 https://doi.org/10.1177/0956059920931012 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........a25c664dcb321fac61cfe40178f9b8c0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20598033 09560599 |
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