METHOD FOR IMPROVING VEHICLE BODY FIREPROOF PERFORMANCE

摘要

A method for improving the fireproofing performance of a vehicle body includes the following steps: determining potential burning damage area of the vehicle body (102); calculating a deformation amount of the vehicle body given that a predetermined high temperature load is exerted on the potential burning damage area (103); on the basis of the deformation amount of the vehicle body, judging whether a space between a underbody suspension parts and rail surface satisfies the traveling capability requirements at a safe speed after the deformation of the vehicle body (104); if not, performing fireproofing treatment on the burning damage area of the vehicle body. By use of the method, the heat-load strength performance of the vehicle body is improved, thus reducing the fire risk and satisfying the traveling capability requirements. The evacuation and rescue time for passengers can also be obtained once a fire happens.