Comparison of Wind and Seismic Effects on a Reinforced Concrete Chimney
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2015 by IJETT Journal|
|Year of Publication : 2015|
|Authors : Sreerath S, Anooja Basheer
Sreerath S, Anooja Basheer"Comparison of Wind and Seismic Effects on a Reinforced Concrete Chimney", International Journal of Engineering Trends and Technology (IJETT), V28(7),365-368 October 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
When designing any high rise structure, wind and seismic forces are the major lateral forces that have to be dealt with. As by the code recommendations, it is very unlikely that maximum wind accompanying maximum earthquake activity, we just have to design the structure for the maximum load which is induced by either wind or seismic. In this present study, a reinforced concrete chimney of gross height 67 m above base, which has a height of 60 m above base, is analysed for wind and seismic excitations. Seismic effects are evaluated through response spectrum analysis. For wind analysis, both along and across wind effects are considered. The design values so obtained are then compared to define the governing factor in stack design. The results indicate that seismic forces are the governing factor for the stack design.
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Tall RCC Chimneys, Along and across wind loads, Response Spectrum Analysis.