大跨空间结构防火设防体系基础问题探讨  

Discussion on fundamental problems in fire protection design system of long-span spatial structures

作　　者：尹亮[1,2,3] 倪照鹏[2] 范峰[1,3] 叶继红[4] YIN Liang;NI Zhao-peng;FAN Feng;YE Ji-hong(Key Laboratory of Structures Dynamic Behavior and Control of MOE,Harbin Institute of Technology,Heilongjiang Harbin 150090,China;Tianjin Fire Research Institute of MPS,Tianjin 300381,China;Key Laboratory of Smart Prevention and Mitiga.tion of Civil Engineering Disasters of MIIT,Harbin Institute of Technology,Heilongjiang Harbin 150090,China;State Key Laboratory for Geomechanics and Deep Underground Engineer ing,China University of Mining and Technology,Jiangsu Xuzhou 221116,China)

机构地区：[1]哈尔滨工业大学结构工程灾变与控制教育部重点实验室,黑龙江哈尔滨150090 [2]公安部天津消防研究所,天津300381 [3]哈尔滨工业大学土木工程智能防灾减灾工业和信息化部重点实验室,黑龙江哈尔滨150090 [4]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221116

出　　处：《消防科学与技术》2018年第6期742-745,共4页Fire Science and Technology

基　　金：住房和城乡建设部国家标准项目"工程建设强制性标准<建筑防火技术规范>"(2016938);公安部技术研究计划重点项目"铝合金网壳结构火灾下破坏机理及防火技术研究"(2016JSYJA22);公安部天津消防研究所基科费项目"索膜结构用典型膜材;连接节点高温力学性能研究"(2017SJ-A-39)

摘　　要：针对民用公共建筑中大跨空间结构屋面防火设防体系中的有关问题,借鉴"处方式"规范中基于构件的防火设防体系和消防安全工程方法的基本理念,利用规范摘录对比和工程实践归纳分析的方法,系统地对建立大跨空间结构屋面防火设防体系需要明确的应用场所及对象分类、设防目标及功能要求、设定火灾及设计耐火时间、荷载效应组合、失效判定准则及方法进行了探讨,提出了效应组合及失效判据的公式化建议,可作为工程防火设计及相关标准制修订的参考。Against the fire protection design problems of long-span spatial roof structures in public building,the application environment and classification of structural system,fire protection design object and functional requirement,fire and fire resistant duration design,combination of load effect as well as failure criteria and method have been discussed systematically with reference to the fire protection design concept of structural elements in prescriptive codes and fire safety engineering method.Method of comparison of requirements from related codes and summarization and analysis of experiences from engineering practices has been used during the study.The composition of the formula of load effect combination and failure criteria has been given.This paper can provide reference for the building fire protection design and the revision of the related codes and standards.

关 键 词：大跨空间结构 防火设计 荷载效应组合 失效判定准则 

分 类 号：X913.4[环境科学与工程—安全科学] TU208.5[建筑科学—建筑设计及理论]