EXPERIMENTAL STUDY ON STRENGTH AND DEFORMATION CAPACITY OF REINFORCED CONCRETE COLUMNS AND STEEL BEAMS STRUCTURE JOINT

摘要

The purpose of this paper is to propose a formula to represent the shear strength of the joint, by clearly identifying, through experiments, the factors which may contribute to the shear strength of the joint. In this project, the joint is designed to be used for the mixed construction of a reinforced concrete column and a steel structure beam (RCS construction) and is composed of webs with opening, cover plate, face-bearing plates (FBP) and triangle stiffeners. The primary experimental factors are plate thickness of joint components and opening size in web. As a result of the experiment, it is known that the force borne by the in-joint concrete increases according to the size of the in-web opening. Paying attention to this, we hereby established a formula cumulating the shear force of the concrete and that of the web, including the size of the web opening as a coefficient. The results obtained from this formula agreed well with the experimental values.