Development of concrete tower for transmission lines in developing countries

摘要

The study presents the methods and results of a research project the purpose of which has been to develop new and economical concrete-made transmission line tower solutions for conditions especially in developing countries. The use of concrete towers for power transmission lines in an electricity project to be implemented in a developing country requires in-depth information on conditions in the target country at the earliest stages to enable sensible consideration of the country's resources when choosing the structural and manufacturing solutions. This report concentrates on the points of greatest relevance to conditions in the Sudan. However, it can also be partly applied to other developing countries with similar conditions. Efficient design will provide optimum solutions for various conditions, and the large manufacturing number typical of pole production will achieve economic savings. This work resulted in the development of a computer program that improves and speeds up the whole design process of concrete tower poles. The work resulted also in a survey of the applicability of experimental dimensioning for the design of concrete towers. According to the survey overdimensioning is possible when using calculative methods and some advantages may be achieved when using experimental dimensioning. The developed computer program together with the wider experience of pole dimensioning will enable quicker and economically more optimized design than before the project.