Memoirs of the Graduate Schools of Engineering and System Informatics Kobe University, No. 4, pp. 8-13, 2012

The Role of the Joint Panel Shear Deformation in Beam-to-Column Connections Part 1: Results of the Experimental Test Program

Faramarz RAHIMINIA1, Hisashi NAMBA1

1Graduate School of Engineering, Department of Architecture

(Received November 30, 2012; Accepted February 25, 2013; Online published March 6, 2013)

Keywords: Joint Panel, Shear Deformation, Failure Mode, Cyclic Behavior, Rotation Capacity

This research was performed to develop a deeper understanding in the effects of joint panel shear deformation on elasto-plastic behavior of the beam-to-column connections. Fourteen full-scale beam-to-column subassemblies were experimentally tested under cyclic loading and results are reported. Main parameters in this investigation were the joint panel strength ratio, weld joint detail, material toughness and column flange width to thickness ratio. It is shown that for each series of specimens with same failure mode of beam fracture, beam cumulative plastic rotation capacity was not strongly affected by joint panel strength ratio. Experimental test results revealed that the total cumulative plastic rotation capacity was increased by reduction of joint panel strength ratio. Even weak panel specimens with heavy flange column section, could show high amount of cumulative total plastic rotation capacity at a level comparable to other weak panel specimens.

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