STUDY OF THE SEISMIC RESPONSE OF R. C. HIGH-RISE BUILDINGS WITH DOUBLE TRANSFER FLOORS

Authors

  • Mr. Manu Kumar
  • Ms. Dipali Jaiswal

Abstract

In multifunctional high rise buildings; the transfer systems are introduced to redistribute vertical and lateral loads from the discontinued columns in the upper floors to the lower levels of the building. Only high-rise buildings with single level of transfer floor were mostly studied. However, in some cases the architect may require two or more levels of transfer and it is expected to vary the building response; therefore further studies must be focused on these cases. A number of buildings with different altitudes of double transfer floors were analyzed using nonlinear time history technique using 3D finite element models. The global seismic responses of the buildings were evaluated. In addition, the optimum vertical position of the double transfer was investigated to minimize the bad effect of the transfer floor existence. It can be concluded that the worst seismic performance is in case of buildings with the lower altitude and nearer spacing of the double transfer floors also the irregularity arising from the soft story phenomenon is more pronounced. Additionally, as the distance between the double transfer floors increased, the building stiffness was reduced and therefore the soft story irregularity probability was increased.

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Published

2021-09-15