|
Title |
An Experimental Study on the Damping Capacity of Lead Rubber Bearing with High Lead-plug Area Ratio
|
|
Keywords |
감쇠비 ; 등가선형강성 ; 이력곡선 ; 납고무받침 Damping ratio ; Effective stiffness ; Hysteresis loop ; LRB |
|
Abstract |
Many engineering researches are performed to ensuring structural safety from earthquake. In this study, the damping capacity of LRB(lead rubber bearing) with high lead-plug area ratio was examined by hysteresis loop from experiments. The displacement controlled tests were performed for 12 specimens designed in 2 types by lead-plug area ratio as main parameter. Each coupled specimens were tested by 3 times sinusoidal loads with different loading velocities. From the experimental results, LRB with high lead-plug area ratio has sufficient damping ratio for reducing horizontal seismic load to structures.
|