Experimental and Theoretical Study of Deformation Processes in a Flange Connection of Iron Beams

Abstract

Flange connections are the critical elements of metal structures, as they determine the whole structure rigidity and strength. In this paper, we present the results of experimental and theoretical studies performed to evaluate the deformation behavior of the elements of metal beam-to-column flange connections. The experimental investigations were carried out on samples subjected to elastic and inelastic deformations up to their full failure. Displacements at the characteristic points of the samples were registered during the loading process. Relative deformations were measured at the points of greatest stress and strain concentration. The data obtained at different scales accurately characterize the interrelations between the deformed elements, especially when the deformation becomes inelastic. Our theoretical studies were concerned with the development of a mathematical model capable of providing an adequate description of elastic and inelastic stress-strain states in the elements of flange connections.