The overlap parts of beam-column in frame structures and other types of structures form beam-column rigid joint panels, if the overlap parts are large enough. The dimensions of rigid panel zone can influence the effects of integral structure analysis. It would lead to different results in structural analysis and design, especially in frame structures and partial frame-supported shear wall structures by using different methods to determine column rigid zones. Based on current structure design codes, this article illustrates the method that is used by SATWE to determine rigid panel zones and the effect on the stiffness of structures by beam-column rigid joint panels.