A PARAMETRIC STUDY ON LATERAL LOAD RESISTANCE OF STEEL CHIMNEYS

This paper presents a computer aided investigation on the seismic and wind effects on chimneys of different heights in the Indian scenario. Self - supporting steel stacks (provided as chimneys) of overall height 90m and 110m subjected to wind and seismic loads are considered in this study. The chimneys are analyzed using STAAD.Pro software for seismic Zones II, III, IV and V and wind loads of basic wind speeds 39m/sec, 44msec, 49m/sec, and 50m/sec. Maximum shear force and bending moments developed in the steel stacks along with lateral displacements and mode shapes are determined and compared to study the structural response of steel stacks.