Steel-concrete composite corrugated web girders – Experimental study

Jáger, Bence and Pap, Tibor and Kövesdi, Balázs Géza and Dunai, László (2025) Steel-concrete composite corrugated web girders – Experimental study. JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH, 235. No. 109845. ISSN 0143-974X

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Abstract

Corrugated web girders are widely used in buildings and bridges. This paper presents an experimental research program focused on prefabricated steel-concrete composite bridge girders with corrugated steel web. Web is the corrugated steel plate, bottom flange fabricated from steel, and upper flange is a reinforced concrete. The transfer of shear flow between the CW (corrugated web) and the concrete flange is facilitated by two mechanisms: (i) the embedding of the steel corrugated web into the reinforced concrete flange and (ii) the use of transverse rebars that pass through the web openings in the embedded web sections. Prior push-out tests conducted by the authors [1] suggest that this shear connection is likely to ensure complete shear flow transfer. The aim of this research is to investigate the bending and shear behavior, as well as the interaction between bending and shear. The pure bending resistance is primarily influenced by the accordion effect, rendering the contribution of the CW negligible Consequently, the focus of the study is to examine the shear contribution of the upper reinforced concrete flange to the overall shear capacity of the section under varying bending moments. In addition to assessing (i) resistance measurements, the study evaluates (ii) initial stiffness, (iii) failure mechanisms, (iv) collapse modes, and (v) post-buckling strength. Available experimental tests in the literature are quite limited. This paper presents laboratory tests conducted on five specimens subjected to eight different load scenarios. Based on the experimental results, a preliminary design proposal is developed for the bending-shear interaction resistance.

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