Finite element analysis of a rigid beam to column connection reinforced with channels

This research work presents a new rigid connection constructed with channels. In order to assess its hysteresis behavior, three specimens with different cover plates and six specimens with different panel zone thickness have been considered. The energy absorbed by the connection and the behavior of the panel zone were studied during cyclic loading and compared with those of connection specimens constructed with ribs, as presented in previous researches. Based on the performed analyses, the connection constructed with channels can withstand a rotation of 0.06 radian without considerable strength reduction. In addition, more energy was absorbed in the suggested connection compared to the connection constructed with ribs, while lower rotation was created in the panel zone. Furthermore, the results of the absorbed energy and panel zone rotation are close in both kinds of connection when different lengths of cover plates are used.