Title |
Prediction Models for the Initial Stiffness and the Connection Axial Design Load of a Double Angle Connection Under Axial Tensile Loads |
Authors |
Yang Jae-Guen ; Leen Gil-Young ; Cheon Ji-Won |
Keywords |
Double Angle Connection ; Axial Tensile Load ; Initial Stiffness ; Connection Axial Design Load |
Abstract |
This study has been conducted to investigate the effects of the bolt gage distance and the number of bolts on the stiffness and strength of a double angle connection under axial tensile loads, and to propose two simplified analytical models for predicting the initial connection stiffness and the connection axial design load of a double angle connection, respectively. Several experimental tests have been performed to obtain the load-displacement curves of double angle connections under axial tensile loads. From the regression of these load-displacement curves, main parameters, which describe the behavior of a double angle connection, have been obtained. The suggested initial stiffness model provides better results than those obtained from Kishi-Chen model. Considering the maximum allowable loads obtained from the suggested strength model, the governing limit state of the double angle connections considered is the flexural yielding of an outstanding leg. |