| Title |
Seismic Behavior of Shear Walls with Vertical Friction Dampers at Edges |
| Authors |
Park Ji-Hun ; Kim Hun-Hee |
| Keywords |
Seismic Retrofit ; Shear Wall ; Friction Damper ; Nonlinear Time History Analysis |
| Abstract |
In this study, seismic behavior of a shear wall with minimum reinforcement of which edges are retrofitted by vertical friction dampers. A pair of vertical friction dampers at the stage of slip induces a couple to controlling bending deformation of the wall. Shear walls with different heights and corresponding dynamic characteristics are retrofitted. Inelastic section analysis and nonlinear time history analysis are conducted for various friction force levels and different intensities of the seismic load. Improvement of the seismic load capacity of the shear wall is more remarkable for the lower wall. For 6-story walls with relatively low ductility capacity, optimal friction force exists in view of curvature control, however, for 9- and 12-story walls with relatively higher ductility capacity, optimal friction force can be found in respect of base shear force. |