Study on the Distribution of Fire Load in High-rise Office Building

• 1、Chongqing University,Faculty of Urban Construction and Environment Engineering, Chongqing 400045
• 2、Chongqing University,Faculty of Urban Construction and Environment Engineering, Chongqing 400045

Abstract：IFire scenario design is an important part of the performance-based fire performance design. Statistical data of Fire load is the key parameter of fire scenario design. In this paper, the investigation and data statistics analysis methods are used to study the high-rise office building fire load. By using the methods, total of 373 office rooms of 12 high-rise office buildings are investigated in Chongqing. The results show that the distributions of fire load density in high-rise building follow a normal distribution. The average value of the fire load density is 494.6MJ/m2, and the standard deviation is 201.7 MJ/m2. Office building fire load density is related to its function of use. Fire load density of integrated offices is the biggest, reaching to 566.9MJ/m2. Fire load density is related to the room size, the fire load did not depend on the ages of the building. The growth coefficient of the t2 fires most widely used in the pre-flashover for the high rise office building is discussed. Further, room fire duration and its probability density distribution is obtained.

Keywords： fire scenario；fire load density；office Building；normal distribution