Existing nuclear safety related plant concrete structure performance evaluation method

The invention discloses an existing nuclear safety related plant concrete structure performance evaluation method. The method comprises the following steps: (1) dividing an existing nuclear safety related plant into structure areas with different anti-seismic requirements by taking plant failure safety risks as judgment points, and formulating different structure recheck standard requirements; (2) carrying out durability evaluation and strength analysis on the plant, and determining the current mechanical property and bearing capacity of existing plant structural members; (3) determining a numerical calculation model of the existing nuclear safety related plant, applying a load effect on the model, and then performing performance analogue simulation calculation; and (4) for a performance analogue simulation calculation result, macroscopically evaluating structural overall anti-seismic performance of the existing nuclear safety related plant. According to the method provided by the invention, the structural pe