计算机仿真技术应用于奥运场馆火灾安全分析

以奥运场馆旧馆改造项目为背景,利用计算机技术,采用性能化防火分析手段,建立了对奥运场馆进行性能化防火分析的软件系统.该系统采用数值模拟的方法,将火灾场景模拟与结构分析综合为一体,完成了性能化防火分析思想的软件实现,利用该系统模拟了被指定为北京奥运会比赛用馆的某已建体育馆在设定火灾下的火灾场景和结构温度场分布,并对该场馆的火灾安全提出了进一步分析的建议,通过分析结果可以得到网架结构的最危险区域的温度.实例分析表明,该系统功能强大,运行方便,充分体现了计算机仿真技术在建筑防火分析中的优越性.

Application of computer simulation technology to fire safety analysis of gymnasiums for 2008 Olympic Games

According to the requirement of the fire safety analysis of gymnasiums for 2008 Beijing Olympic Games, the existing gymnasiums which were constructed in the past years should be evaluated for their safety. In this paper, computer simulation technology could be used to perform fire simulation and analyze the overall behavior of structures under fire loads. A newly developed integrated system, SFSAS, for both of structural analysis and fire simulation was presented. This system adopts numerical simulation technology to execute the performance - based fire analysis ideas. One of the selected gymnasiums for the competition venues of 2008 Beijing Olympic Games has been taken as a case study of SFSAS system. Through the analysis of SFSAS system, the fire scenario could be simulated and the structural behavior in fire could be analyzed. Moreover, the critical temperature and critical time could be estimated. The case demonstrates that the computer simulation technology have high advantage while used to perform fire safety analysis.