Seismic Behavior Analysis and Seismic Strengthening of Corner Joints without Seismic Details
Seismic performance of corner joints without seismic details was analyzed by software ABAQUS, the results indicated that the reinforcement ration of the girders has great effects on the failure process and seismic behavior of corner joints. Beam Haunch Method was used to strengthen these joints, and then finite element analysis was conducted for the joints with unidirectional haunched beam (UHB)and bidirectional haunched beams(BHB). It was found that the bearing capacity of joints was significantly improved but the ultimate displacement and ductility factor were slightly affected by the haunch strengthening. The strengthening effect of bidirectional haunch was obviously superior to that of unidirectional haunch.
H. Y. Zhang et al., "Seismic Behavior Analysis and Seismic Strengthening of Corner Joints without Seismic Details", Advanced Materials Research, Vols. 163-167, pp. 3972-3976, 2011