Discussion on Firefighter Action Measures for Firefighters in Urban Complex Based on PyroSim

We selected an urban complex as the research object to establish a PyroSim model, and took the children’s playground on the fourth floor of the urban complex as the fire point. We considered the most unfavorable situation to set the working conditions, The fire scenes were discussed separately through the firefighters entering the fire scene in the initial stage of the force of water discharge and falling the fire shutters. The effects of different firefighting actions were observed with data of influencing factors such as CO, visibility, temperature, and oxygen concentration, which provided a reference for firefighters to deal with firefighting and rescue operations in urban complex fires.