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Across Wind Response of Tall Reinforced Concrete Chimneys Considering the Flexibility of Soil

Jisha S. V, Dr. B. R. Jayalekshmi, Dr. R. Shivashankar . " Vol.1 - Issue 8 (October - 2012) ", Across Wind Response of Tall Reinforced Concrete Chimneys Considering the Flexibility of Soil, International Journal of Engineering Research & Technology (IJERT) , ISSN: 2278-0181 , www.ijert.org

Jisha S. V, Dr. B. R. Jayalekshmi, Dr. R. Shivashankar. (Across Wind Response of Tall Reinforced Concrete Chimneys Considering the Flexibility of Soil ) . " Vol.1 - Issue 8 (October - 2012) ", International Journal of Engineering Research & Technology (IJERT) , ISSN: 2278-0181 , www.ijert.org

Authors: Jisha S. V, Dr. B. R. Jayalekshmi, Dr. R. Shivashankar
Publication Date: 29-10-2012



A three dimensional soil-structure interaction (SSI) analysis of tall slender reinforced concrete chimneys with annular raft foundation subjected to across wind load is carried out in the present study. Different ratios of external diameter to thickness of the annular raft and different ranges of height of the chimneys were selected for the parametric study. To understand the significance of SSI, four types of soils were considered based on their flexibility. The chimneys were assumed to be located in terrain Category 2 and subjected to a maximum wind speed of 50m/s as per IS:875 (Part 3):2003. The across wind load was computed according to IS:4998 (Part 1):1992. The integrated chimney-foundation-soil system was analysed by finite element software ANSYS based on direct method of SSI assuming linear elastic behaviour. Structural response in terms of deflection of chimney and base moments of chimney were evaluated from the SSI analysis and the results were compared with that obtained from chimney model with rigid base.



Author(s):  Jisha S. V, Dr. B. R. Jayalekshmi, Dr. R. Shivashankar

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Vol.1 - Issue 8 (October - 2012)

e-ISSN:   2278-0181


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