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Dynamic Analysis of RC Chimneys

T. Sharvani*, B.D.V. Chandra Mohan Rao**

* PG Student, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India.

** Professor, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India.

Periodicity:December - February'2017
DOI : https://doi.org/10.26634/jste.5.4.11389

Abstract

Reinforced Concrete chimneys are commonly used in major industries and power plants .Chimneys are slender structures, and loads acting on the chimney are self weight, wind loads, earthquake loads, and temperature loads. The designs of chimneys are normally governed by wind or earthquake loads. The dynamic characteristics of the RC chimney will vary in a wider range with respect to the aspect ratio (ratio of height to longitudinal section). In this paper, Dynamic analysis of an RC chimney in zone III is carried out by Response spectrum analysis as per IS 1893:2005 for different top and bottom diameters of the chimney and varying thickness of the shell using software SAP2000 version 18.0.1. Grade of concrete used is M25. The influence of various geometric parameters H/D and D/T ratios on the modal parameters and dynamic response of the structure, i.e., top displacement, fundamental frequencies, and Base shear are investigated.

Keywords

Modal Analysis, Fundamental Frequency, Base Shear, Top Displacement, Response Spectrum Analysis, Geometric Parameters H/D, D/T Ratios of Chimney.

How to Cite this Article?

Sharvani, T., and Rao, B.D.V.C.M (2017). Dynamic Analysis of RC Chimneys. i-manager’s Journal on Structural Engineering, 5(4), 30-37. https://doi.org/10.26634/jste.5.4.11389

References

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[3]. Indian Standards, (2002). Criteria for Earthquake Resistant Design of Structures - Part 1 General Provisions and Buildings (Fifth Revision) (IS 1893 -Part 1). Bureau of Indian Standards, New Delhi, India.

[4]. K. Anil Pradeep, and C.V. Siva Rama Prasad, (2014). “Governing Loads for Design of a 60 m Industrial RCC Chimney”. International Journal of Innovative Research in Science, Engineering and Technology. Vol.3, No.8, pp.15151-15159.

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Dynamic Analysis of RC Chimneys

Abstract

Keywords

How to Cite this Article?

References

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