FIRE SCENARIO RESEARCH OF PERFORMANCE-BASED FIRE DESIGN FOR UNDERGROUND STRUCTURE

摘要

According to the fire fortification category of different underground constructions, the fire resistance rating of structures in corresponding fire scenario can be gotten by fire design code.Performance-based design is not only reflected in the size and using function of buildings, but also consider the risk and hazard of the fire scenarios in which the structures and components locate.In this paper, the concept and classification of fire fortification and fire scenario for underground construction is proposed.According to a typical subway station, the paper want to explore the setting method of fire scenario, study the selections of fire source location and heat release rate and analyze the results of numerical simulation.Through the research of fire scenario, important foundations can be provided for performance-based fire code.