Author:
Bhosale S. A.,Joshi R. R.
Abstract
Abstract
In case of steel transmission towers, exposure to moisture, humidity, oxygen and other corrosive agents present in the atmosphere can lead to the formation of rust or corrosion on the surface of the steel members. In terrestrial environments, wind and rain may cause moisture to accumulate on the surface of the towers, providing a perfect breeding ground for corrosion. In marine environments, saltwater can accelerate the corrosion process, as dissolved salts can act as a conductor for electrochemical reactions. It causes the loss of material from the surface of the steel members, resulting in a reduction in their cross-sectional area. This reduced cross-sectional area weakens the load carrying capacity of the affected members and can compromise the overall stability of the tower structure. The degradation of appearance of these steel towers can impact both the functionality and visual appeal of the structure. Corroded towers may become weak and prone to collapse, which can endanger the safety of people and the infrastructure around it. Therefore, composite materials have emerged as a promising alternative to traditional material like steel in various applications, including transmission tower construction. The Glass Fibre Polyamide (GFP) composite material has been used instead of steel. In the present work effort is made to study the various literature reviews in order to study the properties of GFP composite material, different composite material used instead of steel for transmission tower. Transmission tower of 220KV has been modelled in STAAD PRO V8i software by considering GFP composite material. As per transmission tower design guidelines (IS 802.1.1.1995 - Code for Transmission tower design), all the loads acting on transmission tower are calculated manually. Analysis of GFP composite transmission tower has been carried out for normal operating condition and broken condition (one power conductor and earth wire is broken).