Static and Dynamic Analysis of Boiler Supporting Structure Designed Using Concrete Filled Square Steel Tubular Columns and Comparison with Structural Steel Columns
International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064

M.Tech / M.E / PhD Thesis | Civil Engineering | India | Volume 3 Issue 8, August 2014

Static and Dynamic Analysis of Boiler Supporting Structure Designed Using Concrete Filled Square Steel Tubular Columns and Comparison with Structural Steel Columns

Harikrishna.T, Penchal Reddy.M, Baskar.K

Boiler supporting structure is one of the most important structures employed in any power plant project. A typical boiler supporting structure will be of 100m height subject to a concentrated load in the range of 15000tons to 20000tons hung from the top. The distributed loads attached to the rest of the portion (i.e. from 0m to 100m) are comparatively less and therefore, this type of structure is typically like an inverted pendulum with huge mass attached at the top. These kinds of structures are highly sensitive to lateral and dynamic loads. In the present day Indian scenario, the boiler supporting structures are designed using huge Plus columns made with two major I-sections in the order of 1.0m to 1.2m web depth with a typical web and flange thicknesses in the order of 16mm to 63mm. As a typical once through supercritical boiler supporting structure consists of around 25 to 45 columns of such mega size, such structures becomes more expensive in terms of money and fabrication time. In view of optimizing the structural steel usage and to develop an efficient structural system, a theoretical attempt is made in this study through design of such structures using concrete filled square steel tubular column. Typical boiler structure is modeled using structural analysis program and analyzed for various conditions such as various seismic zones, wind zones, different load combinations and various section sizes. Dynamic response of the structure is studied. The story drift of the structure is estimated at various levels and compared with that of structure made using Plus I-column. Typical cost comparison also made to study the effectiveness of the project. This paper describes the complete analytical procedure along with results and conclusions.

Keywords: Boiler supporting structure, concrete filled square steel tubular column, Plus-I column, wind, seismic, power plant

Edition: Volume 3 Issue 8, August 2014

Pages: 1254 - 1259

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How to Cite this Article?

Harikrishna.T, Penchal Reddy.M, Baskar.K, "Static and Dynamic Analysis of Boiler Supporting Structure Designed Using Concrete Filled Square Steel Tubular Columns and Comparison with Structural Steel Columns", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=2015607, Volume 3 Issue 8, August 2014, 1254 - 1259

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