The bearing strength of steel coupling beam-reinforced concrete shear wall connections

Increasingly, engineers are designing hybrid and mixed building systems of structural steel and reinforced concrete to produce more efficient structures than can be realized using either material alone. In particular, hybrid coupled shear wall of them are known to be efficient lateral load resisting system. However, due to lack of information, current design equations to compute the bearing strength of steel coupling beam–wall connections in a hybrid coupled shear walls are tacit about cases in which the beams have connection details to the walls that include stud bolts and horizontal ties in hybrid coupled shear walls. There were carried out experimental and analytical studies on steel coupling beam–wall connections in a hybrid wall system. Experimental study was carried out to verify the bearing strength of steel coupling beam–wall connections. The test variables included the reinforcement details that confer a ductile behavior on the steel coupling beam–wall connection, i.e., the stud bolts and the horizontal ties in the steel coupling beam–wall connections. The equations proposed in this study to predict strength for steel coupling beam-reinforced concrete shear wall connections were in good agreement with both our test results and other test data from the literature.