کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
268476 504436 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simplified nonlinear response simulation of composite steel–concrete beams and CFST columns
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Simplified nonlinear response simulation of composite steel–concrete beams and CFST columns
چکیده انگلیسی

A computationally efficient macromodeling scheme to simulate the nonlinear behavior of composite structural connections consisting of steel–concrete composite beams and concrete-filled steel tubular (CFST) columns is investigated. The model proposed for composite beams, validated using four full scale composite beam tests, incorporates partial interaction between the concrete slab and the steel beam. The model proposed for CFST columns adopts fiber-based stress–strain relations that enable the consideration of strength and ductility for confined concrete and local buckling of the steel tube. The flexibility of the composite-beam-to-CFST-column connection is modeled as a panel zone. The validity of the simplified approach is evaluated by comparison of both overall response and local actions with those obtained from test results. The proposed methodology is shown to be viable for nonlinear analysis of composite structures wherein the modeling strategies are amenable to available features in modern nonlinear structural analysis software.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 32, Issue 9, September 2010, Pages 2825–2831
نویسندگان
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