Studies on steel-to-concrete joints with concentrated loading conditions

Abstract

In mixed buildings of steel and concrete an economical design depends on intelligent solutions for steel‐to‐concrete joints. The design and verification of steel‐to‐concrete joints is challenging, as the structural behaviour and the properties of different materials have to be considered. Large forces often have to be transferred in localized areas, e.g. bridge bearings, and various failure modes of steel and concrete may occur in the joints due to load concentrations. An imposed load preventing uplift and a well‐placed reinforcement can strengthen these joints decisively. In this contribution, experimental and numerical investigations and recent approaches for the design of steel‐to‐concrete joints are presented in order to extend and harmonise current rules leading to new chances of optimisation.