Comparison of optimal damper distributions in shear frames in terms of soil conditions
This study deals with the effect of relative density of sandy soils in damper distribution problems.The optimal distribution of viscous dampers and the effect of ground on optimal damper distribution for an n-storey shear-building model are investigated.Soil-structure interaction is modeled as swaying with rocking springs and dashpots.Story masses and stiffnesses are uniformly defined.The building and ground materials are assumed to be linear elastic.The objective function of top absolute acceleration behavior of the structure defined in the frequency domain is minimized.The optimal design corresponding to the first mode of construction is evaluated; and time history analyses are conducted by using El Centro(NS)earthquake acceleration record.The effect of ground on the responses of structure with optimal design is examined.It is observed that the effect of relative density of loose sand has varied with respect to the placement of stories of dampers.The absolute acceleration in a damped system is compared with that in an undamped system.In this study,the results of analyses show that the soil effects should be taken into account in damper optimization problems.
Soil-structure interaction viscous damping optimal dampers sandy soil
E.Aydin O.Sivrikaya B.Ozturk
Department of Civil Engineering,Nigde Omer Halisdemir University,Nigde,Turkey Department of Civil Engineering,Hacettepe University,Ankara,Turkey
国际会议
The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)
青岛
英文
3189-3198
2018-07-22（万方平台首次上网日期，不代表论文的发表时间）