Volume 2 - Issue 3, May - June 2026

It has become incredibly challenging to get land for power transmission lines year after year due to different limitations, like density of population in the urban areas, obtaining forest clearances and nature protection theory. It is necessary to develop technically compact transmission line tower structures to minimize the tower dimensions. Failure of such structures is a major concern. It is very essential to consider appropriate parameters for designing of these towers in order to enhance their sustainability. The present work describes the analysis and design of four-legged self-supporting steel transmission line towers models with an angle sections. The performance of various bracing system has been identified and reported. The lateral wind load resistance is a main measure to evaluate the structural performance of towers. Bracing system is the major system providing lateral load resistance in steel lattice towers. Wind loading is calculated as per IS: 802 (2015). Using STAAD PRO v8i analysis and design of tower has been carried out as a three-dimensional structure. The analysis has been done by taking different combination of loads. The present work describes the analysis and design of transmission line tower of 30 meter height viz. various parameters. The tower is designed in wind zone – V. The various factors including environmental and materials used for the structure is also considered. The load calculations were performed manually but the analysis and design results were obtained through STAAD Pro. Gust factor method is used for wind load analysis. Transmission Line Towers comprise around 28 to 42 percent of the total cost of the Transmission Lines. The increasing demand for electrical energy can be met more economical by developing different light weight configurations of transmission line towers. In this project, an attempt has been made to make the transmission line more cost effective keeping in view to provide optimum electric supply for the required area by considering unique transmission line tower structure. Transmission line towers carry heavy electrical transmission conductors at a sufficient and safe height from ground. In addition to their self-weight they have to withstand forces of nature like strong wind.

Mr.Swarup S. Deshmukh, Mr.Ishant B. Dahat,"Design and Analysis of Transmission Tower for Dynamic Wind Pressure" International Journal of Advanced Multidisciplinary Research and Educational Development, V2(3): Page(1180-1186) May-June 2026. ISSN: 3107-6513. www.ijamred.com. Published by Scientific and Academic Research Publishing.