Volume 5 Issue 4 December - February 2017
Research Paper
Analysis of Transmission Towers for Optimal BracingConfiguration
Siddam Srihitha*, 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.
Srihitha, S., and Rao, B.D.V.C.M. (2017). Analysis of Transmission Towers for Optimal Bracing Configuration. i-manager’s Journal on Structural Engineering, 5(4), 1-8. https://doi.org/10.26634/jste.5.4.10383
Abstract
Transmission line towers are designed to meet the increasing demand for electrical energy. In this paper, a selfsupporting transmission line tower with three different types of bracing patterns (W, Y, and XB) is analyzed to obtain an optimal bracing configuration. The transmission tower is modelled and analyzed as a three-dimensional structure in STAAD. Pro V8i. The bracing system is the vital component in transmission line towers which provides lateral load resistance in steel towers. The base width of the tower is taken as one-sixth of the total height of the tower. All the towers considered in this work are of constant height and base width, but of different types of bracing configurations. The tower configuration has been determined by taking into account of all structural and electrical requirements of a tower. The sag, tension for both conductor and ground wire and the wind load at each panel are evaluated. The various loads acting on the tower such as transverse loads, vertical loads, longitudinal loads, and panel loads for various bracing configurations are calculated. The various parameters, such as joint displacements, and the total weight of steel required are evaluated and an optimal bracing configuration has been suggested.
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