Evaluation for Restoring Force Characteristic of Joint Panels with Various Cross Sections
Hisashi NAMBA, Mototsugu TABUCHI, Tsuyoshi TANAKA
When moment resisting steel frames (MRFs) are subjected to seismic load, high shears arise at joint panels. The effect of panel zone yielding resulting from these high shears may become significant for the seismic behavior of MRFs. In this paper, the elastic plastic behavior of joint panels in H shaped column to H beam connections are investigated conducting a series of loading tests varying its web thickness. Finally, a practical formula for predicting the restoring force characteristic of joint panels, which include H-H connections, SHS (square hollow section) -H connections and also CHS (circular hollow section ) -H conncetions, was proposed.