000013301 001__ 13301
000013301 005__ 20161114160335.0
000013301 04107 $$aeng
000013301 046__ $$k2009-06-22
000013301 100__ $$aErtugrul O., L.
000013301 24500 $$aAnalysis of subway induced vibrations and investigation of preventive measures for a building structure

000013301 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013301 260__ $$bNational Technical University of Athens, 2009
000013301 506__ $$arestricted
000013301 520__ $$2eng$$aIn highly urbanized areas, subway systems are frequently built in close proximity of residential or commercial buildings. The inevitable result in many cases is the structure born vibrations, induced by the passing trains, which exceed the comfort levels. In this study, vibrations likely to be generated in a commercial building due to the subway tunnels which pass through the basement of the building are investigated via numerical analyses utilizing the finite element method. For synthetically obtained train excitations, response velocity spectra were calculated at specific points on basement level of the building and compared to the widely accepted limits of human perception cited in literature. In case the limits are observed to be exceeded, measures of mitigation and their likely effect on the vibration response were investigated so as to reduce the levels to the acceptable limits. The analyses indicated that provision of empty space between the tunnels and the structural components of the building greatly reduces the vibration energy transmitted to the structure and results in significant reductions in the levels of vibrations at control points in the models. Removal of the soil (fill) between the bored piles located among the subway tunnels generally resulted in decreased vibration amplitudes at the control points in the models.

000013301 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013301 653__ $$aSubway Tunnel, Train Excitation, Ground-borne Vibration Abstract. In highly urbanized areas, subway systems are frequently built in close proximity of residential or commercial buildings. The inevitable result in many cases is the structure born vibrations, induced by the passing trains, which exceed the comfort levels. In this study, vibrations likely to be generated in a commercial building due to the subway tunnels which pass through the basement of the building are investigated via numerical analyses utilizing the finite element method. For synthetically obtained train excitations, response velocity spectra were calculated at specific points on basement level of the building and compared to the widely accepted limits of human perception cited in literature. In case the limits are observed to be exceeded, measures of mitigation and their likely effect on the vibration response were investigated so as to reduce the levels to the acceptable limits. The analyses indicated that provision of empty space between the tunnels and the structural components of the building greatly reduces the vibration energy transmitted to the structure and results in significant reductions in the levels of vibrations at control points in the models. Removal of the soil (fill) between the bored piles located among the subway tunnels generally resulted in decreased vibration amplitudes at the control points in the models.

000013301 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013301 720__ $$aErtugrul O., L.$$iBak?r B., S.$$iAkkar, S.
000013301 8560_ $$ffischerc@itam.cas.cz
000013301 8564_ $$s2013234$$uhttps://invenio.itam.cas.cz/record/13301/files/CD446.pdf$$yOriginal version of the author's contribution as presented on CD, section: Modeling and simulations of dynamic soil- structure interaction - ii (MS).
000013301 962__ $$r13074
000013301 980__ $$aPAPER