Stability of steel-concrete composite beams with elliptically-based web openings under hogging moments

Key Points

• Elliptically-based web openings enhance the stability of steel-concrete composite beams under hogging moments, leading to better performance.
• Key evidence shows that beams with elliptical openings retain 85% of their original flexural strength when subjected to hogging moments.
• Analysis of beam models indicates that elliptical openings positively affect the load-bearing capacity during hogging conditions.
• These findings highlight the potential for improved designs in structural engineering using elliptical openings in composite beams.