Paper Details

In recent years considerable attention has been paid to research and development of structural control deviceswith particular emphasis on mitigation of seismic response of buildings. Lead Rubber Bearing (LRB) is an efficienttechnique for increasing building's natural period, which is away from the seismic period range, to avoid the amplificationcaused by earthquakes. Various active and passive control devices are developed for response control of buildings. TunedLiquid Damper (TLD) is a passive control device which dampens the vibration of the structure by sloshing effect of liquidin motion. Hybrid structural control system using Lead Rubber Bearing and tuned liquid dampers opted for the Reinforcedconcrete (RC) structure. The base isolation systems are designed for different target base displacements with therecommendation of UBC-97 code. Thereafter, the base-isolated structures are equipped with Tuned liquid dampers usingequivalent spring-mass model. The effects of TLD properties such as mass ratio, depth ratio and tuning ratio on theperformance of the system are studied. A widely used computer program SAP2000 is used to perform nonlinear time historyanalysis for different storied buildings. The results obtained from the analysis will compare in the form of the time period,story displacement, story acceleration, maximum base shear and maximum reduction in the base displacement.

Kishan k. kotadiya, Dipak k. Jivani, “A Study on the Effectiveness of Tuned Liquid Damper to Reduce the Displacement Demands of Base Isolated Structures”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 7, Issue 6, pp. 79-90, June 2020.