• PRAGATI PASWAN
• ABHISEKH MISHRA

Modal analysis of a steel chimney is a critical process in structural engineering, aims to comprehend the dynamic behavior and inherent frequencies of the structure. The chimney's response to different dynamic loads, such as wind, seismic forces, or even industrial vibrations, can be predicted using modal analysis. An effort is being made to compare the design outputs of self-supported steel chimneys under the European code (EN 1993-3-2) with the Indian code (IS:6533-1989). This research focuses on evaluating the results of Modal analysis conducted on self-supported steel chimneys. The study specifically examines a 90-meter self-supported steel chimney. Using the SAP2000 software, the steel chimney is modelled and analysed under seismic zone III conditions and wind loads equivalent to a fundamental wind speed of 47 meters per second. Mode shapes are calculated to understand the structural response of the steel chimney to these forces.

Chimney, seismic analysis, self-supported Steel chimney, wind analysis, Modal analysis.

"MODAL ANALYSIS OF SELF-SUPPORTING STEEL CHIMNEY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 10, page no.g410-g422, October-2023, Available :http://www.jetir.org/papers/JETIR2310549.pdf

"MODAL ANALYSIS OF SELF-SUPPORTING STEEL CHIMNEY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 10, page no. ppg410-g422, October-2023, Available at : http://www.jetir.org/papers/JETIR2310549.pdf