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The performance-based of smoke control design is based on the fire safety objective. It makes the best smoke control scheme come to possible by analyzing the smoke movement of fire through a variety of flue gas flow model. There is a lot of software used for simulating smoke movement. Today, FDS (Fire Dynamics Simulator) is used widely. This Fire Dynamics simulation software is developed by standards and technology of the U.S. national institute (NIST). This software has high requirement to the operator. People who use the software must have high logical ability and programming ability. This article use pyrosim to design the smoke control system. Pyrosim is developed on the basis of the FDS software. It provides a graphical user interface for the dynamic simulation of fire .Users can model, set the boundary conditions, fire and burning materials directly. Its operation is simple to learn.
The library in our school is taken as the research object in this paper. It has 11layers.The early stage of the design is to collect, read and excerpt of provisions about smoke control design. The next stage is to investigate our school library field, including the location of the exhaust port and the overall arrangement and smoke exhaust facilities. And describe them into draft. Then, according to the previous excerpts of our school, complete smoke control design according to the specification requirements. Through simulation data and section figure from Pyrosim, to evaluate
the effect of smoke control, puts forward improvement schemes, such as increasing smoke shutter, etc. According to the result of the design of the monolayer and multilayer, compare the feasibility of the schemes, and provide the basis for smoke control design of high-rise buildings.
This design is mainly based on the following information:
Design specifications of fire prevention in high-rise building GB50045-95 (2005).
Design specifications of fire prevention in civil building GB50016-95 (2006).
Technical specifications for smoke of building DGJ08-88-2006
The smoke management system guide of the shopping center, the atrium, and large building NFPA92B (2000 edition)
Safety and the performance-based design in high rise building Chemical industry press
The design of the building fire protection （The second edition）China building industry press
The fire protection engineering of building Chemical industry press
The fire protection technology of building China building materials industry press
Keywords: performance-based；smoke；smoke movement；FDS
目录
1绪论 1
1.1 课题研究背景和意义 1
1.1.1 研究背景 1
1.1.2 研究意义 1
1.2 国内外研究状况 2
1.2.1 国内研究现状 2
1.2.2 国外研究现状 3
1.3 本文内容安排 4
2 烟气控制的理论基础 4
2.1 烟气的危害 4
2.1.1 毒害性 5
2.1.2 减光性 5
2.1.3 高温 5
2.2 烟气蔓延过程概述 6
2.2.1 单层房间内的烟气蔓延过程 6
2.2.2 走廊内的烟气蔓延过程 7
2.2.3 竖井内的烟气蔓延过程 7
2.3 高层建筑烟气控制的方法 7
2.3.1 防排烟方式的选取 7
2.3.2 性能化概念 8
3 FDS模拟软件的介绍和理论基础 9
3.1 火灾模型 9
3.1.1 区域模型 10
3.1.2 网络模型 10
3.1.3 场模型 10
3.2 FDS模拟软件介绍 10
3.2.1 FDS的模拟流程 10