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Parametric Study of Girders with Sinusoidal Corrugated Web
Krzysztof Śledziewski1, Marcin Górecki1, Jakub Gajewski2
1Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin, Poland.
Materials (Basel, Switzerland)
|January 8, 2025
Summary
Steel girders with sinusoidal corrugated webs show reduced shear capacity with increased wavelength. Design codes like Eurocode 3 may be overly conservative for these innovative structural elements.
Area of Science:
- Structural Engineering
- Materials Science
- Mechanical Engineering
Background:
- Steel girders with sinusoidal corrugated webs are gaining popularity over traditional flat-web designs.
- This study investigates the application of various sinusoidal profiles as webs in girders, building upon prior research.
Purpose of the Study:
- To analyze the influence of sinusoidal web shape on the shear capacity and failure modes of steel girders.
- To evaluate the impact of geometric parameters (wavelength, amplitude, thickness, height) on girder performance.
Main Methods:
- Development and validation of a numerical model using experimental results.
- Parametric studies conducted in both linear and nonlinear domains using Abaqus software.
Main Results:
- Increased wavelength of the sinusoidal wave decreases ultimate shear capacity and affects failure mode.
- Wave amplitude has a minor effect on critical capacity but influences post-critical load and plastic zone size.
- Increased web thickness significantly enhances girder performance; web height has a negligible effect.
Conclusions:
- Sinusoidal corrugated webs alter girder shear capacity and failure mechanisms compared to flat webs.
- Current design guidelines (Eurocode 3) are conservative, underestimating the shear buckling capacity of corrugated web girders.
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