Formulation of Semi-Empirical Expression for Evaluating Across-wind Response of RC Chimneys
A semi-empirical method was formulated for computation of across-wind response of circular chimneys due to vortex shedding under lock-in region Further, the spectrum of generalized lift force is modified through a non-dimensional parameter ‘fact’ to account for the enhanced effect of lock-in phenomenon, and only by using the structural damping with the principles of conventional structural dynamics, the response is evaluated. A value of 0.45 was suggested for the parameter ‘fact’.