Beam bending experiments of steel-concrete composite diaphragm wall to verify horizontal rigidity and strength

Steel diaphragm walls with very high horizontal rigidity, can be constructed by filling up the steel elements which forms strong joints with concrete. In order to design details of the horizontal bending rigidity it is necessary to understand quantitatively the behaviors and strengths of steel-concrete composite wall subjected to out-of-plane bending moment. For this reason, the experiments on the strength of some beam specimens subjected to out-of-plane bending moment have been carried out. The steel-concrete composite diaphragm walls can be designed as the bi-directional walls when horizontal joints of steel elements are welded. Although the steel-concrete composite diaphragm walls, when the horizontal joints are not welded, can be designed as the walls with high strengths, it is required to calculate the deformations.