On the Integrated Shear Strength of Corrugated Web Composite Girders

Abstract Nowadays steel corrugated webs are frequently used in structural and bridge engineering. This paper focuses on steel‐concrete composite girders where the lower flange is made of steel while the upper flange is made of reinforced concrete. In the international literature only limited number of previous investigations can be found. In this paper an experimental program and numerical model development are presented which focuses on the shear contribution of the concrete flange. The main objective of this investigation is to determine the shear contribution of the concrete flange to the total integrated shear capacity of the whole cross‐section under different accompanying bending moment utilizations. In the experimental program five girders are investigated. The geometry and length of the beams are the same, only the loading position and the distance between the supports are different. In total eight loading tests are carried out since two beams are tested 2 and 3 times. During the tests the applied load, deflection and strains on the steel flange are measured.