Issue 74

A. M. Almastri et alii, Fracture and Structural Integrity, 74 (2025) 342-357; DOI: 10.3221/IGF-ESIS.74.21

Strengthening of steel I-Section girder web with depth discontinuity against localized buckling

Amin H. Almasri Jordan University of Science and Technology, Jordan ahalmasri@just.edu.jo, https://orcid.org/0000-0002-5425-7704 Mohammad Nadeem Akhtar Fahad Bin Sultan University, Tabuk, Saudi Arabia nakhtar@fbsu.edu.sa, https://orcid.org/0000-0002-7806-1896

Citation: Almasri, A. H., Akhtar, M. N., Strengthening of steel I-Section girder web with depth discontinuity against localized buckling, Fracture and Structural Integrity, 74 (2025) 342-357.

Received: 15.06.2025 Accepted: 06.09.2025 Published: 11.09.2025 Issue: 10.2025

Copyright: © 2025 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

K EYWORDS . Steel, Web buckling, Stepped girders, Finite element method.

I NTRODUCTION

teel I-section girders and beams are widely used in the construction industry due to their high strength-to-weight ratio, durability, and ease of fabrication. However, these structural members are susceptible to phenomena such as web buckling, which can significantly reduce their load-carrying capacity and compromise the overall structural integrity. Web buckling occurs when the web of a steel I-section girder or beam experiences compressive stresses that exceed its critical buckling stress. It can be attributed to several factors, including: 1. Eccentricity of Load: When the load is applied to the girder with an eccentricity, additional stresses are added to it due to this eccentricity, causing it to reach the buckling capacity faster. S

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