THE FACTORS INFLUENCING RELIABILITY OF POLE AND TOWER STRUCTURES
Because the application of UHV transmission line is still in exploration stage worldwide,there are no national codes and professional technical regulations of design for such structures. Based reliability theory, referencing design method of technical regulation now in use,the factors which influencing the reliability of the structure were investigated. The reliability of the structure designed according to current technical regulations is assessed by JC method. Depending on the design files of an UHV transmission line in practice,the influences of the importance factor of the structure and design wind load on the reliability of poles and tower structures were researched. There are some results proposed such as the reliability of the structure in different wind load would not be the same by current technical regulations,etc. The analysis results can be benifit for code of UHV transmission line establishment.