| 基于计算机仿真模拟系统的奥运场馆火灾安全分析 | |
| 史健勇 ; 任爱珠 ; 陈驰 ; Shi Jian-yong ; Ren Ai-zhu ; Chen Chi | |
| 2010-07-15 ; 2010-07-15 | |
| 会议名称 | 第二届全国防震减灾工程学术研讨会论文集 ; 第二届全国防震减灾工程学术研讨会 ; 中国云南丽江 ; CNKI ; 中国土木工程学会 |
| 关键词 | 火灾模拟 计算机仿真 钢结构 防火安全 奥运会 fire simulation computer simulation steel structure Fire safety Olympic Games TU245 |
| 其他题名 | Analysis on the Fire Safety of Gymnasiums for 2008 Olympic Games Based on the Computer Simulation Technology |
| 中文摘要 | 本文以奥运场馆改造项目为背景,利用计算机技术,基于性能化防火分析的思想,采用自行开发的火灾安全模拟系统SFSAS,对体育场馆的火灾安全性能进行了综合分析。该系统采用数值模拟方法,将火灾场景模拟分析与结构分析综合为一体,模拟了北京奥运会将要使用的北航体育练习馆在设定火灾下的火灾场景和结构温度场的分布,分析了其屋面钢结构体系在火灾作用下的结构反应和力学性能。通过分析发现,在火灾影响下,原有结构体系的平衡被打破,火灾下的结构破坏表现为整体性的破坏,因而需要进行全面的整体分析,而不能仅仅考虑局部的影响。实例分析证明,本文介绍的火灾安全模拟系统功能强大,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。; According to the requirement of the fire safety analysis of gymnasiums for 2008 Beijing Olympic Games, the exited gymnasiums which were constructed in the past years should be evaluated for their safety. In this paper, a newly developed integrated system-SFSAS was introduced to analyze the overall fire safety behavior of gymnasiums under fire conditions. This system adopts numerical simulation technology to execute the performance-based fire analysis ideas, and is able to perform the integrative process of fire safety analysis from fire simulation to structural analysis. One of the selected gymnasiums for the competition venues of 2008 Beijing Olympic Games-BeiHang gymnasium, has been studied as a case by the SFSAS system. Through the SFSAS, several potential fires can be specified and the evolvement process of fire scenario could be simulated. Based on the variable temperature fields during the fire evolvement process, the steel structural respond and behavior of gymnasium in fire could be analyzed. Moreover, the critical temperature and critical time could be estimated. The results show that the structural respond and behavior of large space building under fire conditions have the systemic nature of a coherent whole, rather than the local effect. The case demonstrates that the SFSAS system is a powerful tool and has high advantage while used to perform fire safety analysis.; 北京市科委奥运场馆改造与加固关键技术研究项目(H030630210430) 教育部科学技术研究重点项目(03010) |
| 会议录出版者 | 《工程抗震与加固改造》编辑部 |
| 语种 | 中文 ; 中文 |
| 内容类型 | 会议论文 |
| 源URL | [http://hdl.handle.net/123456789/69527]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 史健勇,任爱珠,陈驰,等. 基于计算机仿真模拟系统的奥运场馆火灾安全分析[C]. 见:第二届全国防震减灾工程学术研讨会论文集, 第二届全国防震减灾工程学术研讨会, 中国云南丽江, CNKI, 中国土木工程学会. |
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