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Thin-Walled Beam Formulations with Cross-Sectional Deformation
Thin-walled beams are widely used in steel construction with various restraint arrangements and sizes. Due to the slenderness of their cross-section thin-walled beams are prone to distortional behaviour as a result of web bending. Web bending is a major concern in thin-walled buckling behaviour especially when the top flanges are restraint as in highway bridge construction of girders. Web distortion also gains significance with slender webs, stocky flanges, and/or shorter spans. This paper evaluates the performance of beam-type Finite Element formulations that are capable of capturing the deformation modes involving web distortion in thin-walled beam behaviour by contrasting the analysis results against shell element-based models. In the selected case studies elastic buckling load predictions and corresponding first mode shapes of steel girders with various sizes and restraining conditions is illustrated.
Thin-Walled Beam Formulations with Cross-Sectional Deformation
Thin-walled beams are widely used in steel construction with various restraint arrangements and sizes. Due to the slenderness of their cross-section thin-walled beams are prone to distortional behaviour as a result of web bending. Web bending is a major concern in thin-walled buckling behaviour especially when the top flanges are restraint as in highway bridge construction of girders. Web distortion also gains significance with slender webs, stocky flanges, and/or shorter spans. This paper evaluates the performance of beam-type Finite Element formulations that are capable of capturing the deformation modes involving web distortion in thin-walled beam behaviour by contrasting the analysis results against shell element-based models. In the selected case studies elastic buckling load predictions and corresponding first mode shapes of steel girders with various sizes and restraining conditions is illustrated.
Thin-Walled Beam Formulations with Cross-Sectional Deformation
Lecture Notes in Civil Engineering
Gupta, Rishi (editor) / Sun, Min (editor) / Brzev, Svetlana (editor) / Alam, M. Shahria (editor) / Ng, Kelvin Tsun Wai (editor) / Li, Jianbing (editor) / El Damatty, Ashraf (editor) / Lim, Clark (editor) / Erkmen, Emre (author)
Canadian Society of Civil Engineering Annual Conference ; 2022 ; Whistler, BC, BC, Canada
Proceedings of the Canadian Society of Civil Engineering Annual Conference 2022 ; Chapter: 67 ; 975-993
2023-08-06
19 pages
Article/Chapter (Book)
Electronic Resource
English
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