| Title |
Displacement-based Seismic Assessment of Multi-story Wall Structures considering Torsional Mechanism |
| Authors |
Hong Sung-Gul ; Ha Tae-Hyu |
| Keywords |
Asymmetric Wall Structures ; Torsional Design ; Seismic Assessment ; Torsional Mechanism |
| Abstract |
Torsional behavior of eccentric structures under seismic loading may cause stress and/or strain concentration, which result in the failure of the structures in an unexpected manner. This study propose how to assess the seismic capacity of plan-irregular RC wall structures. The seismic capacity is expressed in terms of lateral displacement capacity of each wall. The seismic demands for displacement are assessed by so called displacement-based design approach. Those seismic capacity and demands are combined on D-R coordinate, which is made up of lateral displacement and rotation angle. To expand these concepts to the inelastic region the adaptive modal analysis method is used. In addition, the failure mechanisms including torsional failure are defined on D-R coordinate. Finally, seismic assessment of two 3-story plan-irregular wall structures are presented. |