000011407 001__ 11407
000011407 005__ 20141205155907.0
000011407 04107 $$aeng
000011407 046__ $$k2008-10-12
000011407 100__ $$aRahimzade Rofooei, Fayaz
000011407 24500 $$aOn the Performance of 2 Passive TMDs in Reducing the Seismic Response of 3-D Structural Models Considering the Soil-Structure Interaction

000011407 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011407 260__ $$b
000011407 506__ $$arestricted
000011407 520__ $$2eng$$aThe application of passive or active Tuned Mass Dampers (TMD) in reducing the seismic or wind induced response of structures has been extensively explored in the literature. On the other hand, the effect of Soil-Structure Interaction (SSI) for the structures located on soft soil, on their dynamic parameters such as natural frequencies, damping ratios and modal shapes can be prominent. This paper investigates the effect of SSI on the performance of a couple of Tuned Mass Dampers (TMD) in reducing the seismic response of the structures situated on soft soil. A number of 3-D steel moment resisting frames with different eccentricities in orthogonal directions are considered. Two TMDs are implemented at the roof level in the orthogonal directions. These models are assumed to be located on a square rigid concrete mat footing, and the underlying soil is considered as a homogeneous half-space. Also, a Cone model has been used for mathematical modeling of the infinite soil medium. The shear wave velocity of the soil is varied from 150m/s to very large velocities to represent different soil types. These models are subjected to a number of bi-directional (horizontal) earthquake excitations according to the site soil type. Using the optimal location of these TMDs in plan from a previous study, their performance in controlling the seismic response of the structural models is studied considering the SSI. The criterion for investigating the performance of TMD in this study is the amount of the reduction in the maximum real story drift. The real story drift is calculated by vector summation of story drift in two orthogonal directions at any time instant. As the result shows, excluding the SSI effect could overestimate the TMD’s performance.

000011407 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011407 653__ $$aTuned Mass Damper (TMD), Soil-Structure Interaction, 3-D Structural Models

000011407 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011407 720__ $$aRahimzade Rofooei, Fayaz$$iRahmani Shamsi, Esmaeel
000011407 8560_ $$ffischerc@itam.cas.cz
000011407 8564_ $$s348539$$uhttps://invenio.itam.cas.cz/record/11407/files/04-02-0140.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 04-02-0140.
000011407 962__ $$r9324
000011407 980__ $$aPAPER