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Dynamic Effects of Wind and Earthquake Loads on Tall Buildings Using Probabilistic Approach

Nakhostin, Elham | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 43586 (09)
  4. University: Sharif University Of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Bakhshi, Ali
  7. Abstract:
  8. Tall buildings with lightweight and low damping are vulnerable under wind load. The wind loads stimulate tall buildings in the alongwind and acrosswind direction so the wind loads should be considered in addition to the earthquake loads. Wind tunnel testing is one of the empirical testing that used to study the behavior of tall buildings under wind load besides the simulation of turbulence components of the wind field is one of the issues that have been studied by researchers. In this research we have simulated two models of tall building with different side ratio and we have surveyed wind and earthquake loads in the different loading conditions. The models have been analysis in both time and frequency domains, for the analysis models in frequency domain we used wind tunnel data obtained for two models tested in the wind tunnel of University of Notre Dame. For the analysis in time domain, wind field has been simulated with MATLAB software. In addition the wind load, Models have been analysis for seismic loads. The results of the analysis have been studied on three parts, in the first part the wind and earthquake loads effects on two models are compared, In the second part the effect of side ratio in longitudinal and transverse responses have been investigated and in the third part, base moment coefficients have been compared for loading in time and frequency domains in alongwind and acrosswind. With side ratio increasing, transverse displacements under wind loads will be more than earthquake loads. Transverse displacements are more than longitudinal one
  9. Keywords:
  10. High Buildings ; Wind Tunnel ; Wind Effect on High-Rise Buildings ; Seismic Load ; Dynamic Loads ; Wind Field

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