2020 Volume 76 Issue 5 Pages II_62-II_71
The purpose of this study is to examine the effect of the studs’ specifications on the shear capacity of the composite members of steel plate and concrete, which adopt headed studs as the shear connectors. A quantitative evaluation of shear capacity was conducted. In current design formula, a reduction factor is simply multiplied to the strength of reinforced concrete structures to consider the shear capacity where the composite members are treated as one-way plate, owing to that the mechanism of the shear capacity has not been fully understood. However, in this design formula, the shear reinforcement effect due to shear connectors is not taken into account, and the design capacity is often underestimated on the safe side. Therefore, in this study, the loading test was conducted with different parameters such as the arrangement spacing, height and shaft diameter of the headed studs. Based on the test results, a new formula for calculated the shear capacity was proposed which could consider the shear reinforcement effect from shear connectors.