大空间建筑消防系统故障风险定量分析的新方法

在对CO2自动灭火系统的故障模式、影响及危害度定性分析的基础上,采用模糊数学方法,以系统故障影响严重度、故障模式发生概率及其可检测性为关键指标,给出了故障风险定量评价指标的建立方法,提出了一种消防系统故障风险定量分析的新方法———模糊推理法。该方法可直接输入语言变量,利用模糊定性和不确定信息或数据定量评价系统的故障风险,并以CO2自动灭火系统为例,详细阐述了该方法定量评价故障风险的全过程。该方法和推理过程可为其他建筑防火设备的同类分析所借鉴,为城市火灾风险定量评价系统的构建提供理论基础和一种新方法。

A New Fault Risk Quantitative Analysis Method for Fireproof System of Large Space Building

Based on the analysis of fault modes,their effect and severity of CO_2 automatic distinguishing system,method of how to establish quantitative indexes for fault evaluation is put forward by using fuzzy mathematics.Then a new fault risk quantitative analysis method for fireproof system, namely fuzzy deduction,is raised,this method can directly input language variables and can quantitatively evaluate system's fault risk by taking use of fuzzy qualitative data and uncertainty information.Finally CO_2 AFS(Automatic Fireproof System) is taken as an example to illustrate this evaluating method,which lays a solid theoretical foundation for the quantitative evaluation of city's fire risk.