Tests, simulations and web crippling design of S690 and S960 high strength steel unlipped channel sections under end-one-flange loading

This paper presents experimental and numerical investigations into the web crippling behaviour and structural design of high strength steel unlipped channel sections under end-one-flange loading. An experimental programme including six grade S690 and four grade S960 steel test specimens was firstly...

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Main Authors: Lan, Xiaoyi, Xu, Xian-Wei, Zhao, Ou
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/180633
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1806332024-10-16T00:53:22Z Tests, simulations and web crippling design of S690 and S960 high strength steel unlipped channel sections under end-one-flange loading Lan, Xiaoyi Xu, Xian-Wei Zhao, Ou School of Civil and Environmental Engineering Engineering End-one-flange loading High strength steel This paper presents experimental and numerical investigations into the web crippling behaviour and structural design of high strength steel unlipped channel sections under end-one-flange loading. An experimental programme including six grade S690 and four grade S960 steel test specimens was firstly carried out, and the corresponding test set-up, procedures and results were reported. The web crippling test results were subsequently used in a finite element programme to validate developed finite element models, which were then adopted to perform parametric studies to cover wider parameter ranges of the bearing length, web slenderness and inside bend radius. It is found that the ultimate web crippling strength of high strength steel unlipped channel sections increases with increasing bearing length but decreasing web slenderness and inside bend radius. Considering that relevant codified design provisions are absent, the design rules of normal strength steel unlipped channel sections, as prescribed in EN 1993-1-3, EN 1993-1-5 and AISI S100, were assessed for their suitability to high strength steel unlipped channel sections. The codified design methods provide inaccurate and scattered resistance predictions for high strength steel unlipped channel sections under end-one-flange loading. Thus, an improved AISI S100 design method and a novel 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 Number: 04IDS001121C120) and Regency Steel Asia Endowment Fund (Award Number: 03INS001251C120) are acknowledged. 2024-10-16T00:53:22Z 2024-10-16T00:53:22Z 2024 Journal Article Lan, X., Xu, X. & Zhao, O. (2024). Tests, simulations and web crippling design of S690 and S960 high strength steel unlipped channel sections under end-one-flange loading. Thin-Walled Structures, 204, 112276-. https://dx.doi.org/10.1016/j.tws.2024.112276 0263-8231 https://hdl.handle.net/10356/180633 10.1016/j.tws.2024.112276 2-s2.0-85200266645 204 112276 en 04IDS001121C120 03INS001251C120 Thin-Walled Structures © 2024 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
End-one-flange loading
High strength steel
spellingShingle Engineering
End-one-flange loading
High strength steel
Lan, Xiaoyi
Xu, Xian-Wei
Zhao, Ou
Tests, simulations and web crippling design of S690 and S960 high strength steel unlipped channel sections under end-one-flange loading
description This paper presents experimental and numerical investigations into the web crippling behaviour and structural design of high strength steel unlipped channel sections under end-one-flange loading. An experimental programme including six grade S690 and four grade S960 steel test specimens was firstly carried out, and the corresponding test set-up, procedures and results were reported. The web crippling test results were subsequently used in a finite element programme to validate developed finite element models, which were then adopted to perform parametric studies to cover wider parameter ranges of the bearing length, web slenderness and inside bend radius. It is found that the ultimate web crippling strength of high strength steel unlipped channel sections increases with increasing bearing length but decreasing web slenderness and inside bend radius. Considering that relevant codified design provisions are absent, the design rules of normal strength steel unlipped channel sections, as prescribed in EN 1993-1-3, EN 1993-1-5 and AISI S100, were assessed for their suitability to high strength steel unlipped channel sections. The codified design methods provide inaccurate and scattered resistance predictions for high strength steel unlipped channel sections under end-one-flange loading. Thus, an improved AISI S100 design method and a novel slenderness-based design method were proposed, which can outperform the codified design methods.
author2 School of Civil and Environmental Engineering
author_facet School of Civil and Environmental Engineering
Lan, Xiaoyi
Xu, Xian-Wei
Zhao, Ou
format Article
author Lan, Xiaoyi
Xu, Xian-Wei
Zhao, Ou
author_sort Lan, Xiaoyi
title Tests, simulations and web crippling design of S690 and S960 high strength steel unlipped channel sections under end-one-flange loading
title_short Tests, simulations and web crippling design of S690 and S960 high strength steel unlipped channel sections under end-one-flange loading
title_full Tests, simulations and web crippling design of S690 and S960 high strength steel unlipped channel sections under end-one-flange loading
title_fullStr Tests, simulations and web crippling design of S690 and S960 high strength steel unlipped channel sections under end-one-flange loading
title_full_unstemmed Tests, simulations and web crippling design of S690 and S960 high strength steel unlipped channel sections under end-one-flange loading
title_sort tests, simulations and web crippling design of s690 and s960 high strength steel unlipped channel sections under end-one-flange loading
publishDate 2024
url https://hdl.handle.net/10356/180633
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