| Title |
A Study on Installation of Viscoelastic Dampers Using Cables |
| Authors |
Choi Hyun-Hoon ; Kim Jin-Koo |
| Keywords |
Viscoelastic Dampers ; Seismic Analysis ; Cables ; Vibration Control |
| Abstract |
In general passive energy dissipation devices (PEDD) such as viscous, viscoelastic, and friction devices are installed using diagonal or chevron braces. To increase the effective damping force and to reduce the damper volume the magnifying system of the damper displacement such as toggle brace system and scissor-jack-damper configuration have been developed with increase in installation cost. In this study new installation scheme for PEDD was proposed using cables installed in such a way that relative displacement occurs between the cable and the structure when the structure is subjected to lateral load. The cables can be installed continuously or discretely between base and top story of the structure. To verify the validity of the proposed method nonlinear dynamic analysis of model structures with viscoelastic dampers installed using the proposed configuration scheme was carried out using three different earthquake records and two sinusoidal forces. According to the analysis results the proposed method resulted in significant reduction in the size of dampers compared with the conventional installation methods. |