Abstract
A theoretical formula for calculating the global shear buckling strength of curved corrugated steel webs (CSWs) under simply support conditions was derived. Their geometric parameters, namely the corrugation depth-to-web thickness ratio, web slenderness, and radius of curvature, which influence the elastic shear buckling strength, were also assessed. The computational error of the formula for the shear buckling of a curved CSW was verified to be within 2% using finite element analysis. Increasing the corrugation depth-to-web thickness ratio and decreasing web slenderness significantly reduced the elastic shear buckling strength. On the contrary, reducing the height of the web or increasing the web thickness had the opposite effect. Although the radius of curvature has little influence on the shear strength of a curved CSW, it significantly impacts the buckling mode. The results provide a theoretical reference for the design and application of curved CSW bridges.
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The data used to support the findings of this study are available from the corresponding author upon request.
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Acknowledgements
The work described in this paper was supported partially by two grants from the National Natural Science Foundation of China (Grant Nos. 51868039 and 51708269) and partially by a grant from the Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University and the Postdoctoral Science Foundation of China (2018M643766).
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Ji, W., Liu, X. Study on shear buckling strength of curved corrugated steel webs for bridges. Arch Appl Mech 91, 4409–4431 (2021). https://doi.org/10.1007/s00419-021-02012-1
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DOI: https://doi.org/10.1007/s00419-021-02012-1