Planar right-angle rigid frame core beam model design method and system based on genetic algorithm

The invention provides a genetic algorithm-based planar right-angle rigid frame core beam model design method and system, which can be used for wind tunnel test model design of part of special large-span bridges, and comprises the following steps: establishing a large-span bridge reduced scale model to obtain a control target of a wind tunnel test finite element model; establishing a wind tunnel test finite element model controlled by key parameters in finite element software, selecting an initial value, analyzing dynamic characteristics of the wind tunnel test finite element model, and exporting model attributes; and inputting model attributes and a control target of the wind tunnel test finite element model into MATLAB, and obtaining key control parameters through a genetic algorithm. The method has the advantages that (1) the number of control design parameters in the design of the planar right-angle rigid frame core beam system is determined; (2) proposing a comprehensive index for verifying a core beam s