Ultimate Strength and Shear-Lag Effect of Aluminum Alloy (6063-T5) Bolted Angle Connections

초록

Angles are frequently used for lateral bracing and as truss members. Such members normally have eccentric connection and the non-uniform stress distribution due to shear-lag effect which reduces the section efficiency of tension member Past researches on the net-section capacity have been focused primarily on the shear-lag effect according to connection eccentricity and connection length on angle. However, recent literatures on angle bolted connection have shown that bending effects induced from connection eccentricity have the potential to significantly reduce the strength of angle connection. Moreover curling (out-of-deformation) effect that occurs in specimens with relatively long end distance would be critical factor for the failure capacity of angles. This paper presents a study of the shear-lag effects on angle bolted connection with aluminum alloys. Test parameters include thickness and width of angles. Lastly, the reliability estimation on various design specifications for net-section tensile capacity was conducted.

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