Numerical recalculation of experimental tests on diagonally stiffened steel I-girders

Zoubek, Sara (author), Ljubinković, Filip (author), Martins, João Pedro (author)

This paper presents a preliminary numerical study aimed at replicating and extending an experimental investigation on diagonally stiffened steel I-girders predominantly subjected to shear. The numerical models were developed to correspond to the experimental specimens: one model representing a reference I-girder without diagonal stiffeners, and another model incorporating a welded diagonal stiffener. This stiffener was placed along the diagonal of the girder web to enhance stability and load-carrying capacity under shear. The primary objectives of this numerical study are: i) to quantitatively assess the shear capacity of diagonally stiffened I-girders under varying stiffening strategies, and ii) to evaluate the accuracy and consistency of existing analytical methods for predicting the shear resistance of these girders. The numerical model is validated against the experimental data, forming the basis for a wider parametric study to be undertaken in the near future by the authors. This parametric investigation will explore a broader range of geometries, material properties, and stiffening configurations, with the ultimate goal of developing an analytical formulation capable of accurately predicting the ultimate strength of diagonally stiffened girders under shear.

• Language: English
• Keywords: civil engineering, numerical recalculation, diagonally stiffened girder, shear resistance
• Work type: Article
• Typology: 1.08 - Published Scientific Conference Contribution
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: Str. 1319-1324
• Numbering: Vol. 8, no. 6
• PID: 20.500.12556/RUL-187342
• UDC: 624.014
• ISSN on article: 2509-7075
• DOI: 10.1002/cepa.70231
• COBISS.SI-ID: 285718531
• Publication date in RUL: 10.09.2026

Record is a part of a proceedings

• Title: SDSS 2025
• COBISS.SI-ID: 265872387

Record is a part of a journal

• Title: ce/papers
• Publisher: Wiley
• ISSN: 2509-7075
• COBISS.SI-ID: 8145761

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: gradbeništvo, numerična simulacija, diagonalno ojačan nosilec, strižna odpornost