Shear Studs Effect on the Seismic Behavior of Steel Beam– Concrete-Filled Tube Column Connections
Keywords:
Shear stud, Composite column filled with concrete, Finite element, Connection, Force-displacement curveAbstract
The purpose of this study is to investigate the effect of the geometrical shape of the shear studs of steel-concrete composite column on the structural behavior of the steel beam to column connection. The effect of the desired parameter on the force-displacement curve, strain energy, internal energy, and the amount of plastic dissipated energy is investigated. In this research, 19 models were developed in ABAQUS finite element software using L-shaped, U-shaped and T-shaped shear studs. The results show that by increasing the parameters such as the stiffness and shear resistance of the steel-concrete composite column system, their bearing capacity increases. Finally, force-displacement interaction diagrams have been developed for steel-concrete composite columns. The results showed that the use of a U-shaped shear stud can increase the column tolerated forces by 295%. Also, the most increases are related to models with U-shaped studs, and then models with L-shaped studs, in which the forces have increased by 233%. The most increase in displacement belongs to U-shaped studs, which showed a 52% increase in displacement capacity of the connection.
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