کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
304919 512839 2009 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Random vibration analysis of long-span structures subjected to spatially varying ground motions
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Random vibration analysis of long-span structures subjected to spatially varying ground motions
چکیده انگلیسی

On the basis of the pseudo-excitation method (PEM), a random vibration methodology is formulated for the seismic analysis of multi-supported structures subjected to spatially varying ground motions. The ground motion spatial variability consists of the wave passage, incoherence and site–response effects. Advantages of this method are that less computation effort is required and that the cross-correlations both between normal modes and between excitations are automatically included. Random seismic responses of a realistic long-span bridge due to the wave passage, incoherence and site–response effects are extensively investigated. It is shown that all these effects have significant influence on the seismic response of the structure.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Dynamics and Earthquake Engineering - Volume 29, Issue 4, April 2009, Pages 620–629
نویسندگان
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