Real Type Experiment of 77 Series Transmission Tower in Jiangsu Based on Different Reinforcement Schemes

The old 77 series transmission tower is widely used. In recent years, many structural damage accidents have occurred due to its inability to adapt to the changing climate in some regions. Therefore, this paper has carried out structural reinforcement in two ways for the tower designed in the early stage without considering the change of wind pressure height coefficient. In order to check the safety and reliability of the structure, a real tower experiment after two reinforcement schemes has been designed to calculate the stress of each node and component. The effectiveness of two different strengthening schemes is verified.