| Title |
Seismic Behavior of Hybrid Coupled Shear Wall depending upon the Ratios of Connection Strength to Coupling Beams Strength |
| Authors |
Yun Hyun-Do ; Par Wan-Shin |
| Keywords |
Steel Coupling Beams ; Connection ; Shear critical ; Flexural critical ; Equivalent elastic damping coefficient |
| Abstract |
Due to lack of information, current design methods to calculate embedment length are tacit about cases in which hybrid wall system has joint details of stud bolts and horizontal ties. In this study, we set out to develop model for calculating the embedment lengths of embedded steel section in a hybrid wall system, and analytical and experimental studies on steel coupling beam-concrete wall connections were carried out. The cyclic response of steel coupling beams embedded into reinforced concrete boundary elements was studied. Three half-scale subassemblies representing a portion of a prototype structure were designed, constructed, and tested. The main test variables were the ratios of connection strength to coupling beam strength depending upon embedment length of embedded steel section. The initial stiffness of the coupling beams in all the specimens was smaller than the value computed assuming full fixity at the face of the wall. The effective fixed point of steel coupling beams with auxiliary bars inside the wall is about 1/6 to 1/5 of the embedment length. |