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Critical Buckling Moment of Cold-Formed Lipped Channel Sections
Cold-formed steel (CFS) members are extensively used in building construction industry both as primary members to achieve cost-effectiveness over their hot-rolled counterpart and as secondary elements between main frameworks. In this work, cold-rolled lipped channel beams (LCB) were studied for various end moment cases. A suitable finite-element (FE) model intended for this study was adopted. Accuracy of developed FE models involved in this study was validated with experimental and numerical results available in the literature, which were further used to perform parametric study to evaluate the critical buckling capacity of selected beam sections. An extensive FE parametric study was carried out using commercial software package ABAQUS. This paper reports on series of investigation done on available cross-sections from Indian standards to evaluate critical buckling strength and ultimate moment capacity of these beams with varying moment, cross-section, length, and material properties. The beams were subjected to end moment along the span generated by applying a series of tensile and compressive loads above and below neutral axis (NA) forming a triangular distribution. The study also includes effects of uniform and non-uniform bending moment distribution along the span on buckling capacity. Idealized simply supported end conditions with warping free ends were used.
Critical Buckling Moment of Cold-Formed Lipped Channel Sections
Cold-formed steel (CFS) members are extensively used in building construction industry both as primary members to achieve cost-effectiveness over their hot-rolled counterpart and as secondary elements between main frameworks. In this work, cold-rolled lipped channel beams (LCB) were studied for various end moment cases. A suitable finite-element (FE) model intended for this study was adopted. Accuracy of developed FE models involved in this study was validated with experimental and numerical results available in the literature, which were further used to perform parametric study to evaluate the critical buckling capacity of selected beam sections. An extensive FE parametric study was carried out using commercial software package ABAQUS. This paper reports on series of investigation done on available cross-sections from Indian standards to evaluate critical buckling strength and ultimate moment capacity of these beams with varying moment, cross-section, length, and material properties. The beams were subjected to end moment along the span generated by applying a series of tensile and compressive loads above and below neutral axis (NA) forming a triangular distribution. The study also includes effects of uniform and non-uniform bending moment distribution along the span on buckling capacity. Idealized simply supported end conditions with warping free ends were used.
Critical Buckling Moment of Cold-Formed Lipped Channel Sections
Lecture Notes in Civil Engineering
Madhavan, Mahendrakumar (Herausgeber:in) / Davidson, James S. (Herausgeber:in) / Shanmugam, N. Elumalai (Herausgeber:in) / Singh, Ravikant (Autor:in) / Samanta, Avik (Autor:in) / Suman, Saurabh (Autor:in)
Indian Structural Steel Conference ; 2020 ; Hyderabad, India
Proceedings of the Indian Structural Steel Conference 2020 (Vol. 1) ; Kapitel: 40 ; 503-515
17.08.2023
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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