Fabricated under-column independent foundation of post-tensioned prestressing assembled transformer substation and design method of fabricated under-column independent foundation

The invention relates to an assembly type under-column independent foundation of a post-tensioned pre-stressed assembled transformer substation and a design method thereof. The assembly type under-column independent foundation comprises a foundation component and prestressed tendons which are arranged in the foundation component in a full-length mode through a post-tensioning method. The foundation component comprises a left side prefabricated foundation, a middle prefabricated foundation and a right side prefabricated foundation which are sequentially arranged. The basic design requirements of the foundation can be met by adopting common steel bars and concrete materials, and new materials and new technologies such as high-performance concrete and prestressed steel bars can be adopted in the prefabrication production process of a factory, so that the bearing capacity of the foundation is further improved, and the performance requirements of the foundation in a special environment are met. Components of the f