Design aspects of steel I-girders with corrugated steel webs

Corrugated web girders represent a new structural system emerged in the past two decades. The girder’s flanges provide the flexural strength of the girder with no contribution from the corrugated web which provides the girder’s shear capacity. Failure of the web occurs by steel yielding, web buckli...

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Main Author: Ezzeldin Yazeed Sayed-Ahmed
Format: Article
Language:English
Published: Electronic Journals for Science and Engineering - International 2007-06-01
Series:Electronic Journal of Structural Engineering
Online Access:http://10.0.0.97/EJSE/article/view/72
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author Ezzeldin Yazeed Sayed-Ahmed
author_facet Ezzeldin Yazeed Sayed-Ahmed
author_sort Ezzeldin Yazeed Sayed-Ahmed
collection DOAJ
description Corrugated web girders represent a new structural system emerged in the past two decades. The girder’s flanges provide the flexural strength of the girder with no contribution from the corrugated web which provides the girder’s shear capacity. Failure of the web occurs by steel yielding, web buckling or interactively between them. Lateral torsion and local flange buckling of corrugated web girders represent another two possible failure criteria. Here, the work previously performed by the author on corrugated web girders was compiled and presented in a comprehensive format. The starting point is the shear behaviour of the corrugated webs which is investigated focusing on the failure modes affecting the web design. An interaction equation that considers web buckling and yielding is proposed. Numerical analyses are performed to investigate the buckling modes of the corrugated web, verify the validity of the proposed equation and explore the post-buckling strength of corrugated web girders. The numerical model is extended to determine the critical moment causing lateral instability for corrugated web girders. The applicability of the critical moment design equations, currently used for plane web girders, to corrugated web girders is examined. The numerical model is then used to scrutinize the local buckling behaviour of the compression flange. The applicability of the currently used limiting values for the flange outstand-to-thickness ratios to corrugated web girders is investigated.
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spelling doaj.art-4741df1a82d14db9a072b0a2c4502c8c2023-08-29T11:47:39ZengElectronic Journals for Science and Engineering - InternationalElectronic Journal of Structural Engineering1443-92552007-06-017Design aspects of steel I-girders with corrugated steel websEzzeldin Yazeed Sayed-Ahmed0Ain Shams University Corrugated web girders represent a new structural system emerged in the past two decades. The girder’s flanges provide the flexural strength of the girder with no contribution from the corrugated web which provides the girder’s shear capacity. Failure of the web occurs by steel yielding, web buckling or interactively between them. Lateral torsion and local flange buckling of corrugated web girders represent another two possible failure criteria. Here, the work previously performed by the author on corrugated web girders was compiled and presented in a comprehensive format. The starting point is the shear behaviour of the corrugated webs which is investigated focusing on the failure modes affecting the web design. An interaction equation that considers web buckling and yielding is proposed. Numerical analyses are performed to investigate the buckling modes of the corrugated web, verify the validity of the proposed equation and explore the post-buckling strength of corrugated web girders. The numerical model is extended to determine the critical moment causing lateral instability for corrugated web girders. The applicability of the critical moment design equations, currently used for plane web girders, to corrugated web girders is examined. The numerical model is then used to scrutinize the local buckling behaviour of the compression flange. The applicability of the currently used limiting values for the flange outstand-to-thickness ratios to corrugated web girders is investigated. http://10.0.0.97/EJSE/article/view/72
spellingShingle Ezzeldin Yazeed Sayed-Ahmed
Design aspects of steel I-girders with corrugated steel webs
Electronic Journal of Structural Engineering
title Design aspects of steel I-girders with corrugated steel webs
title_full Design aspects of steel I-girders with corrugated steel webs
title_fullStr Design aspects of steel I-girders with corrugated steel webs
title_full_unstemmed Design aspects of steel I-girders with corrugated steel webs
title_short Design aspects of steel I-girders with corrugated steel webs
title_sort design aspects of steel i girders with corrugated steel webs
url http://10.0.0.97/EJSE/article/view/72
work_keys_str_mv AT ezzeldinyazeedsayedahmed designaspectsofsteeligirderswithcorrugatedsteelwebs