Abstract:For line load calculation of transmission tower structure, there are some similarities between European American standards and Chinese standards, but there are also great differences between them. As a result, the design software based on Chinese standards is not applicable for foreign projects, which reduces the design efficiency. For far, there is no general software for load combination based on European American standards available in electric power industry. Firstly, the similarities and differences are analyzed and discussed, and the research results of the related software are referred. And then, based on these, an efficient visual operating program system aimed to realize line load combination calculation of transmission tower based on European-American standards is developed by VB.NET program. The principle and the structure of the proposed program are introduced in detail as well as the key technology of the program. At last, an example is demonstrated, hoping to provide some help for foreign engineering design.