COMPUTER AIDED DESIGN OF TRANSMISSION LINE TOWER FOUNDATIONS

Abstract

The transmissions line towers are used to connect the grid from power plant and one power grid to another grid. So they may often pass through very steep ground, mountainous ranges, marshy land, and rivers and even to that area where bearing capacity of soil is very low. Foundations of most of the structures are designed for compressive loads and some of them may in addition be subjected to lateral loads. Because of wind load and pull due to broken wire condition, uplift loads are created which are very significant and may be even critical. Further these types of foundations may be subjected to uplift and tilting force simultaneously. Isolated footing, piles and well foundations are the types of foundations generally adopted as foundation of transmission line towers depending on the magnitude and types of uplift or lateral forces expected in the given situation. In this dissertation software has been developed to analyze and design the different types of foundation used for transmission line tower .The developed software provide flexibility to the user to select the different type of foundations on the basic i2f soil types, loads etc. The selected foundation has been :-...;:aiyseci and designed by software and finally design components will be represented graphically.