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Strategies for enhancing flexural performance in the main girder of composite girder cable-stayed bridges: Partial and full UHPC slab replacements
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DOI：10.1016/j.engstruct.2026.123465.png)
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Abstract
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• Flexural behaviour of NSC and UHPC composite girders in cable-stayed bridges studied. • Partial UHPC replacement enhances crack resistance, capacity, and ductility. • 24%-thinner full UHPC slab offers comparable stiffness to thicker NSC slabs. • Refined analytical models based on Eurocode 4 improve capacity predictions. • UHPC replacement in CGCSBs may accentuate shear lag effects in the slab.
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