A REVIEW OF WIND LOAD EFFECTS AND LOAD CALCULATION ON TALL CHIMNEYS

In this paper deals with wind load effects on tall chimneys, Wind is essentially the large scale movement of free air due to thermal currents. It plays an important role in design of tall structures because it exerts static and dynamic loads whose effects on a slender structure, such as a chimney are significant. The wind load exerted at any point on a chimney can be considered as the sum of quasistatic and a dynamic load component. In order to effectively analyse a chimney’s response, a deep knowledge of the basic wind engineering concepts is needed. The force exerted by wind on the chimney varies with the wind speed and its associated turbulence. A chimney is a vertical channel through which smoke and combustion gases pass out of a building. Chimneys are used to emit the exhaust gases higher up in the atmosphere so that diffusion of gases may take place. Chimney may be constructed of steel, R.C.C or masonry.