ABSTRACT
Beam–column connections in framed structures represent geometric and stiffness discontinuity and hence regions of force concentration. In this chapter, all types of frame joints are treated in depth. These include knee corner joints under opening and closing moments, obtuse corner joints, wide beam supported on a narrow column and vice versa, and exterior tee and interior beam–column connections. The treatment includes the examination of the joint behavior and a discussion on the role of detailing in controlling the joint performance. Different strut-and-tie models for every type of connection are proposed with the corresponding reinforcement detailing based on the boundary forces of the joint region. In order to illustrate the calculation procedure, the strength of selected examples of beam–column connections that have been tested experimentally is assessed using the method of strut-and-tie models.
