Vibration Analysis of Steel Chimney Subjected to Dynamic Wind Load
Sumeet Jadhav
Department of civil engineering, University of Pune , IN
Nagesh Shelke
Department of civil engineering, University of Pune , IN
Keywords: Chimney, dynamic response, natural frequency, slender, wind load.
Abstract
Chimney, dynamic response, natural frequency, slender, wind load.Stacks or chimneys are very important industrial structures for releasing out waste harmful gases to a higher elevation in atmosphere. Industrial Chimneys are having greater heights and slender structures with circular cross-sections. Steel stacks being slender and long sections they are more prone to dynamic wind oscillations and corresponding stresses. Present study deals with the design of chimney by varying its geometry, diameter and height and obtained dynamic response of self-supported steel chimney under dynamic wind. The project is based on the design concepts of chimneys according to Indian codes provisions and analyse through finite element method. 9 types of steel chimney models are made by varying its height, geometry and diameter. The main objective of this study is to perform vibration analysis of steel chimney for dynamic wind loads. Natural frequency and time period has been found out using analysis in Ansys. All the models are modelled in the Ansys Software.
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