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According to the fire characteristics of building fire, the paper employed AHP (analytic hierarchy process) to establish building fire risk assessment system, including categories of factories, hotels, malls, schools and public amenities, based on the using properties of buildings. Meanwhile, the questionnaires and the cluster analysis were proposed to calculate the experts' weight coefficient, and then the index weight values in the five systems were computed. The system not only can make the government, the public and the unit knows the fire safety situation, but also can provide gist for insurance.

The simple automatic sprinkler system, with the characteristics of small investment and simple construction, is widely used in various small existing buildings that have high risk of fire. In this study, experiments were conducted to analyze the feasibility of using plastic pipe in the simple automatic sprinkler system. The results of the study conclude that hot-water plastic pipe can tolerate the temperatures of the initial phase of fire in fast response sprinklers.

This essay studies the breakage of glass curtain due to the fire in a tower building with a CFD (computation fluid dynamics) based simulation package (FDS). The heat release rate of fire is 6MW which determined by the function of the tower. The results shows temperature in vertical direction change a lot. Since the tress generated by temperature difference is the cause of glass breakage, glass size has influence on their fire-resistance performance. In the simulation, the optimal size of tempered glass under certain condition is put forward.