کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
303901 512759 2016 5 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Seismic energy factor of self-centering systems subjected to near-fault earthquake ground motions
ترجمه فارسی عنوان
عامل انرژی لرزه ای سیستم های خودمحور در معرض زلزله زمین نزدیک به گسل
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کلمات کلیدی
تعادل انرژی؛ عامل انرژی؛ سیستم های خودمحور. تحلیل دینامیکی غیرخطی؛ حرکات زمین نزدیک گسل
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی


• The energy factor of self-centering systems is quantified and derived.
• The influence of hysteretic features is appreciable.
• The Newmark and Hall spectra might lead to biased estimation.
• The proposed energy factor can be used to establish energy based procedures.

This research focuses on the seismic energy factor of self-centering systems. Based on energy balance concept, the energy factor of self-centering systems is derived. To clarify the influence of hysteretic parameters on the energy factor, nonlinear dynamic analyses of flag-shaped single-degree-of-freedom systems are performed. An ensemble of near-fault earthquake ground motion records is used as excitations. Numerical evaluations considering different combinations of hysteretic nonlinear parameters including the post-yielding stiffness ratio and ductility factor are performed. A comparison with the widely used design spectra is also made. The dispersion of analyses results is also presented. Results indicate that the energy factor of self-centering systems is appreciably influenced by nonlinear parameters (the ductility factor and post-yielding stiffness ratio). Results of this study are instructive for the revelation of the energy balance mode of self-centering systems, and they can be helpful to enhance and improve the current procedures based on energy balance concept.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Dynamics and Earthquake Engineering - Volume 84, May 2016, Pages 169–173
نویسندگان
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