High strength steel unlipped channel sections subjected to ETF loading: laboratory testing, numerical simulations and web crippling design
This paper presents web crippling and structural design of high strength steel unlipped channel sections under end-two-flange (ETF) loading based on experimental and finite element investigations. The experimental programme was composed of six grade S690 and four grade S960 test specimens, and the c...
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sg-ntu-dr.10356-1806442024-10-16T00:26:50Z High strength steel unlipped channel sections subjected to ETF loading: laboratory testing, numerical simulations and web crippling design Lan, Xiaoyi Zhang, Jia-Jun Zhao, Ou School of Civil and Environmental Engineering Engineering Web crippling High strength steel This paper presents web crippling and structural design of high strength steel unlipped channel sections under end-two-flange (ETF) loading based on experimental and finite element investigations. The experimental programme was composed of six grade S690 and four grade S960 test specimens, and the corresponding test set-up, procedures and results were reported in detail. The web crippling test results were used in the numerical modelling programme to validate the developed FE models, which were then adopted to perform parametric studies to enlarge parameter ranges of the bearing length, web slenderness and inside bend radius. Given that codified design rules for S690 and S960 high strength steel unlipped channel sections undergoing web crippling are absent, the corresponding normal strength steel design provisions, as stipulated in the European code EN 1993-1-3 and American specification AISI S100, were evaluated for their suitability to high strength steel unlipped channel sections. It is shown that the ultimate strength of high strength steel unlipped channel sections nonlinearly increases with increasing bearing length but with decreasing web slenderness and inside bend radius. The design methods of current EN 1993-1-3 and AISI S100 provide inaccurate and scattered resistance predictions for high strength steel unlipped channel sections. Finally, a modified AISI S100 design method and a slenderness-based design method were proposed, which can outperform the codified design methods. The financial supports from China Jingye Engineering Corporation Limited (Singapore Branch) (Award no.: 04IDS001121C120) and Regency Steel Asia Endowment Fund (Award no.: 03INS001251C120) are acknowledged. 2024-10-16T00:26:50Z 2024-10-16T00:26:50Z 2024 Journal Article Lan, X., Zhang, J. & Zhao, O. (2024). High strength steel unlipped channel sections subjected to ETF loading: laboratory testing, numerical simulations and web crippling design. Engineering Structures, 319, 118852-. https://dx.doi.org/10.1016/j.engstruct.2024.118852 0141-0296 https://hdl.handle.net/10356/180644 10.1016/j.engstruct.2024.118852 2-s2.0-85202353672 319 118852 en 04IDS001121C120 03INS001251C120 Engineering Structures © 2024 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. |
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Engineering Web crippling High strength steel Lan, Xiaoyi Zhang, Jia-Jun Zhao, Ou High strength steel unlipped channel sections subjected to ETF loading: laboratory testing, numerical simulations and web crippling design |
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This paper presents web crippling and structural design of high strength steel unlipped channel sections under end-two-flange (ETF) loading based on experimental and finite element investigations. The experimental programme was composed of six grade S690 and four grade S960 test specimens, and the corresponding test set-up, procedures and results were reported in detail. The web crippling test results were used in the numerical modelling programme to validate the developed FE models, which were then adopted to perform parametric studies to enlarge parameter ranges of the bearing length, web slenderness and inside bend radius. Given that codified design rules for S690 and S960 high strength steel unlipped channel sections undergoing web crippling are absent, the corresponding normal strength steel design provisions, as stipulated in the European code EN 1993-1-3 and American specification AISI S100, were evaluated for their suitability to high strength steel unlipped channel sections. It is shown that the ultimate strength of high strength steel unlipped channel sections nonlinearly increases with increasing bearing length but with decreasing web slenderness and inside bend radius. The design methods of current EN 1993-1-3 and AISI S100 provide inaccurate and scattered resistance predictions for high strength steel unlipped channel sections. Finally, a modified AISI S100 design method and a slenderness-based design method were proposed, which can outperform the codified design methods. |
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School of Civil and Environmental Engineering |
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School of Civil and Environmental Engineering Lan, Xiaoyi Zhang, Jia-Jun Zhao, Ou |
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Article |
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Lan, Xiaoyi Zhang, Jia-Jun Zhao, Ou |
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Lan, Xiaoyi |
title |
High strength steel unlipped channel sections subjected to ETF loading: laboratory testing, numerical simulations and web crippling design |
title_short |
High strength steel unlipped channel sections subjected to ETF loading: laboratory testing, numerical simulations and web crippling design |
title_full |
High strength steel unlipped channel sections subjected to ETF loading: laboratory testing, numerical simulations and web crippling design |
title_fullStr |
High strength steel unlipped channel sections subjected to ETF loading: laboratory testing, numerical simulations and web crippling design |
title_full_unstemmed |
High strength steel unlipped channel sections subjected to ETF loading: laboratory testing, numerical simulations and web crippling design |
title_sort |
high strength steel unlipped channel sections subjected to etf loading: laboratory testing, numerical simulations and web crippling design |
publishDate |
2024 |
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https://hdl.handle.net/10356/180644 |
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1814777751872208896 |