000013365 001__ 13365
000013365 005__ 20161114160338.0
000013365 04107 $$aeng
000013365 046__ $$k2009-06-22
000013365 100__ $$aHadi M. N., S.
000013365 24500 $$aImproving the dynamic behaviour of adjacent buildings by connecting them with fluid viscous dampers

000013365 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013365 260__ $$bNational Technical University of Athens, 2009
000013365 506__ $$arestricted
000013365 520__ $$2eng$$aBuilding structures are often built close to each other because of lack of available land in metropolitan cities. To reduce the response of a structure to earthquake excitation, various types of control system devices have been proposed for adjacent buildings. In this study, the effectiveness of fluid viscous dampers is investigated in terms of the reduction of displacement, acceleration and shear force responses of adjacent buildings. The specific objectives of this investigation are carried out in three parts namely: (1) to formulate the equations of motion for the two adjacent buildings connected with viscous dampers; (2) to find out the effectiveness of fluid viscous dampers in consideration of the three-dimensional vibration mitigation analysis when the dampers are connected at all the floors, using both a response spectrum analysis and a time-history analysis; and (3) to investigate the optimal placement of the fluid viscous dampers instead of placing them at all the floors in order to minimise the cost of the dampers. Parametric studies have shown that by using the viscous dampers to link adjacent buildings the seismic responses of adjacent buildings can be diminished considerably. Results show that by using fluid dampers to connect the adjacent buildings of different fundamental frequencies can effectively reduce earthquake-induced responses of either building if damper properties are appropriately selected. Analysis results of this study show that placing fluid viscous dampers at selected floors will result in a more efficient structural system to mitigate earthquake effects.

000013365 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013365 653__ $$aAdjacent Buildings, Fluid Viscous Joint Dampers, Earthquake Excitations, TimeHistory Analysis, Parametric Study. Abstract. Building structures are often built close to each other because of lack of available land in metropolitan cities. To reduce the response of a structure to earthquake excitation, various types of control system devices have been proposed for adjacent buildings. In this study, the effectiveness of fluid viscous dampers is investigated in terms of the reduction of displacement, acceleration and shear force responses of adjacent buildings. The specific objectives of this investigation are carried out in three parts namely: (1) to formulate the equations of motion for the two adjacent buildings connected with viscous dampers; (2) to find out the effectiveness of fluid viscous dampers in consideration of the three-dimensional vibration mitigation analysis when the dampers are connected at all the floors, using both a response spectrum analysis and a time-history analysis; and (3) to investigate the optimal placement of the fluid viscous dampers instead of placing them at all the floors in order to minimise the cost of the dampers. Parametric studies have shown that by using the viscous dampers to link adjacent buildings the seismic responses of adjacent buildings can be diminished considerably. Results show that by using fluid dampers to connect the adjacent buildings of different fundamental frequencies can effectively reduce earthquake-induced responses of either building if damper properties are appropriately selected. Analysis results of this study show that placing fluid viscous dampers at selected floors will result in a more efficient structural system to mitigate earthquake effects.

000013365 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013365 720__ $$aHadi M. N., S.$$iUz M., E.
000013365 8560_ $$ffischerc@itam.cas.cz
000013365 8564_ $$s464841$$uhttps://invenio.itam.cas.cz/record/13365/files/CD540.pdf$$yOriginal version of the author's contribution as presented on CD, section: Contact-impact problems.
000013365 962__ $$r13074
000013365 980__ $$aPAPER