ANALYSIS OF TRANSMISSION TOWER BY USING STAAD PRO

Transmission line towers carry heavy electrical transmission conductors at a sufficient and safe height from ground. additionally to their self-weight they need to face up to all forces of nature like strong wind, earthquake and snow load. Therefore cable towers should be designed considering both structural and electrical requirements for a safe and economical design. This study focuses Estimation of a feasible transmission line tower for various wind speed by designing transmission line tower with hot rolled sections and compare three sorts of bracings. For this purpose, 220 kV double circuit self- supporting transmission towers having square base is used. Analysis of this transmission tower is administered using STAAD PRO subjected to wind load for Zone-II,III,IV. Load calculation for the analysis is administered consistent with IS 802:1995. Finally, the optimal design of transmission tower using hot-rolled steel is compared for wind speed.