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Experimental Study on Structural Behavior of Interfaces of Double Composite Girder Using the 80 MPa Concrete
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 Title & Authors
Experimental Study on Structural Behavior of Interfaces of Double Composite Girder Using the 80 MPa Concrete
Yang, In-Wook; Lim, Eol; Ha, Tae-Yul;
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 Abstract
The horizontal shear capacity when the flange of a steel girder is replaced with 80 MPa concrete is important for its structural safety. In this study, 6 specimens with different interface conditions were designed and fabricated based on the Limit State Design Code on Korean Highway Bridges and static tests were performed to measure the horizontal shear capacity. Not only the resistance factors of the stud shear connector, concrete and reinforcement, but also the surface conditions of the casing concrete and spacing of the horizontal shear reinforcements were used as the experimental variables. The experiments showed that the interfaces between the steel girder and the concrete flange have stronger joint performance than those between the concrete flange and deck slab. To ensure the composite action in the plastic zone, the conservative horizontal shear reinforcement is more important than the roughness in the concrete face.
 Keywords
Composite action;Concrete flange;Horizontal shear;Interface condition;Static test;
 Language
Korean
 Cited by
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