Abstract
This paper presents results of full-scale cyclic loading tests of moment connection conducted to evaluate deformation capacity. Deformation capacity of flange-welded web-bolted beam-to-column connection is investigated by three types of cyclic loadings, i.e. constant amplitude, two different constant amplitudes and random amplitudes. Deformation capacity of moment connections with weld access hole under varying amplitude cyclic loadings is estimated by proposed method which is obtained using crack propagation.