effect of terrain conditions on the along- wind response of tall buildings

effect of terrain conditions on the along- wind response of tall buildings

rapid population growth leads to tall buildings construction, so it is necessary to study effective parameters on tall structures behavior against wind pressure. wind speed changes, structures’ damping and terrain conditions are effective on structure’s aerodynamic behavior. in this paper, using computational fluid dynamics (cfd), computational structural dynamics (csd) and commonwealth advisory aeronautical council (carrc) tall building model, impact of mentioned factors on wind- structure interaction is investigated.

several 3d standard models are generated using abaqus finite element software. next, wind profile is modeled using power law. flow turbulence is simulated by implicit large eddy simulation (iles) method and co- simulation method is used to transfer non- uniform loads from fluid to structural domain. structural damping is determined by rayleigh method. results show that denser terrain around the structure change wind velocity profile at height and decreases maximum displacements and stresses in upper and lower parts of structure.