Influence of Corrosion with Different Connecting Configuration on Shear Bearing Capacity of Stud

Abstract:

In order to study the influence on static behavior of stud connector with different configuration layouts between the steelconcrete interface under corrosion environment, six types of layout were designed considering the relative slip between the steel and concrete. 24 specimens including 21 specimens under corrosion environment and 3 under normal environment were fabricated and used in the pushout test. The relationship between load and slip was tested during the pushout test, and the shear bearing capacity were measured. The results show that the structure with steel wrapping the concrete has a better corrosion resistance. The specimens with such layout has a higher shear resistance, and the average capacity of single stud is 177.6 kN. When the interface is slipped before the corrosion, the shear resistance is reduced compared to other specimen without preslip, and the average capacity of single stud after corrosion is 153.3 kN which is 9.6 percent less than the specimens without preslip.