کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
285382 509193 2011 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear analysis of concrete-filled square stainless steel stub columns under axial compression
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Nonlinear analysis of concrete-filled square stainless steel stub columns under axial compression
چکیده انگلیسی

Concrete-filled stainless steel tubes (CFSST) can be considered as a new and innovative kind of composite construction technique, and have the potential to be used extensively in civil engineering. This paper employs a nonlinear analysis of square CFSST stub columns under axial compression. A three-dimensional nonlinear finite element (FE) model is developed using ABAQUS, where nonlinear material behaviour, enhanced strength corner properties of steel, and initial geometric imperfections are included. Close agreement is achieved between the test and FE results in terms of load-deformation response and ultimate strength. In light of the numerical results, the behaviour of stainless steel composite columns is compared with that of carbon steel composite columns. A simple model is proposed to calculate the ultimate strength of square CFSST stub columns.

Research highlights
► A finite element model was developed.
► Strain-hardening properties of stainless steel affects column's behaviour greatly.
► Confinement factor can be used to distinguish curve types.
► Simplified formulae were developed to predict compressive strength.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Constructional Steel Research - Volume 67, Issue 11, November 2011, Pages 1719–1732
نویسندگان
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