Joints between concrete and steel elements in constructions are typically designed to transfer static shear force and sometimes bending moment. To enhance a structure's ability to suppress earthquake or wind-induced vibrations, this research attempts to incorporate friction devices to the joint. In this new design, a large diameter pin replaces bolts in the web which allows rotation of beam about its centroid. Two friction devices called Slotted Bolted Connection (SBC) are incorporated in the tension and compression flanges of the beam. The research begins with an experimental investigation of an individual SBC specimen. Force-displacement hysteresis is obtained under cyclic axial loads. Coefficient of friction is then obtained from a nonlinear finite element model which is calibrated against experimental results. The research continues with a full-scale experiment of steel beam-to-concrete column. Moment-rotation hysteresis is acquired, and stiffness, strength and equivalent damping ratio is then determined. Results demonstrate that the proposed configuration is effective to dissipate input energy and produce effective damping to a structural system.
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