Cable-stayed bridge forming cable force optimization method

The invention relates to a cable-stayed bridge forming cable force optimization method. The method is a cable-stayed bridge forming cable force optimization method based on a target tracking-iterativeupdating algorithm. According to the method, the midspan deflection of the cable-stayed bridge in the bridging state serves as a tracking target, a cable-stayed bridge model is established through anANSYS parameterized programming language, the bridging cable force of the cable-stayed bridge is optimized through an analysis method of tracking the midspan deflection and iteratively updating a real constant array, and the bridging state design requirement of the cable-stayed bridge is met. The method has the advantages that the requirements of design specifications of the cable-stayed bridge are more visually and specifically reflected, initial cable force is applied in a mode of endowing a unit real constant, bridging cable force is solved through a method of iteratively updating a cableforce real constant array o