Research on numerical simulation of subway station fire based on IFC-FDS integration

This paper studies the data interaction technology and model conversion method between the IFC (a BIM core standard) and the FDS (a fire simulation software). On this basis, the automatic conversion of the BIM model based on the IFC standard to the fire simulation model is realized. Considering the fire development status with and without the impact of fire protection measures, the corresponding fire scene design and numerical simulation are carried out. Through the comparative analysis of numerical simulation test data, it is found that due to the airtightness of the subway station, the concentration of smoke and CO under fire conditions are high, the filling speed of smoke is fast, and the fire danger is high. Reasonable and effective configuration of fire protection facilities can significantly reduce the risk of fire.