کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6737577 1429062 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and numerical studies on hysteretic behavior of all-steel bamboo-shaped energy dissipaters
ترجمه فارسی عنوان
مطالعات تجربی و عددی بر روی رفتار هیسترتیده گرانده انرژی بامبو همه فولاد
کلمات کلیدی
متخصصان انرژی، فولاد، خستگی کم چرخه، الگوی تغییر شکل حالت های شکست،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Energy dissipaters constructed in precast structures play an important fuse-type role in concentrating damage and protecting the primary structure. The stable hysteretic behavior, easy fabrication and low cost are expected characteristics for high-performance energy dissipater. In this paper, an all-steel bamboo-shaped energy dissipater consisting of an inner bamboo-shaped core and an outer restraining tube was developed, which aimed at guaranteeing the performance of the energy dissipater under relatively high strain amplitude and avoiding the adverse effect of grouting and welding. Parametric studies on geometrical variables were performed to investigate the low-cycle fatigue behaviors and deformation patterns of the proposed bamboo-shaped dissipaters. Test results showed that all-steel bamboo-shaped dissipaters showed stable hysteretic curves and no local or overall buckling were observed. Failure modes of bamboo-shaped energy dissipater were affected by the lateral deformation resulted from bending, stress concentration around the fillet and the torsion in the segment. The torsion, contact conditions and the wavelength were discussed via finite element analyses and theoretical derivations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 165, 15 June 2018, Pages 38-49
نویسندگان
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