کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4928387 1432070 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Failure capacities of cold-formed steel roof trusses end-connections
ترجمه فارسی عنوان
ظرفیت خرابی فولاد سرد ساخته شده از فولاد ضد زنگ انتهای اتصالات
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
The response of cold-formed steel roof trusses undergoing large deformations resulting from unconventional loading is not totally known. Roof truss end-connections are one structural component that can cause premature failure. This paper investigates the failure capacities and the energy absorption capabilities of roof truss end-connections. Experimental tests were performed to obtain the capacities of these connections under quasi-static vertical and horizontal (tension and shear) loadings. Numerical simulations were developed to predict the connection response to failure for any configuration. Implicit and explicit dynamic procedures were used in the analysis of the numerical simulations. A deformable screw behavior with failure criterion was used in the numerical modeling to predict the progressive failure of the connection. The paper includes four verifications that validate the deformable behavior of #10 TEK screw used in the simulations. Results showed that the toughness (energy absorbed to failure) of the end-connection is greatly affected by the screw configuration and the direction of loading.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin-Walled Structures - Volume 121, December 2017, Pages 57-66
نویسندگان
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