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Analytical Investigation of Communication Tower under Wind Load( Vol-2,Issue-3,May 2016 )


D. H. Tupe, G.R. Gandhe , S.K.Jangave


Communication Tower, SAP 2000 software, Wind Load, Strength and Stability.


With the rapid and widespread expansion of long distance broadcasting and communication in last two decades, the structural engineers have been faced with the problem of support of antennas at great heights, which is necessary to broadcast signals over long distance. In addition, the field of power transmission also requires the high tension conductors to be installed at reasonable heights. Engineering design of telecommunication structure is concerned with much more than calculation and numerical analysis. The present study focus on analysis of communication towers for strength and stability to withstand the lateral force because of wind as the tower are affected by lateral force like wind as a result tower deflect laterally to maximum extent and there by it can affect the cost of the project as well as communication broad systems there fore the primary aim of investigation was to provide minimum deflection for the high communication tower. In the present analytical study, the number of towers with different bracing have been modeled and analysis with SAP 2000 computer package. The principal influencing parameter in the study where type of bracing (X, XB, K, XB K and K XB), base width and height of tower. The tower is resting on building of height 45 m and tower this as resulted the total height of tower as 55 m, 64 m and 73 m. The base width varies from 2.5 m, 3 m, 3.5 m and 4 m and height of towers varies from 9 m, 18 m and 27 m. All the towers are models in space frame with different braced systems; this has resulted into 55 models. The study reviewed that the height, base width and type of bracing are the significant influencing parameter on the strength and stability of tower. As the base width and height increases, deflection also increases significantly. However the result shows that X and XB bracing are more suitable for all height more than 55 m where as all type of bracing suitable up to 55 m

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