| 不同受火方式下混凝土框架结构的变形研究 |
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| 引用本文： | 荆亚涛,吴波.不同受火方式下混凝土框架结构的变形研究[J].防灾减灾工程学报,2009,29(4):392-398. |
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| 作者姓名： | 荆亚涛 吴波 |
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| 作者单位： | 华南理工大学亚热带建筑科学国家重点实验室,广州,510640 |
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| 基金项目： | 国家自然科学基金项目，国家科技部支撑计划子课题 |
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| 摘 要： | 针对单层框架和三层框架,通过高温数值分析,初步考察了不同受火方式下结构的变形特征。研究发现:①火灾蔓延对结构高温变形影响较大,此时节点的水平位移总体上小于结构全层/全部受火时的相应结果;②受火区间仅对相邻跨或相邻层有一定影响,而对隔跨或隔层影响相对较小;③非对称局部受火情况下,单层框架边节点的水平位移可能比全层受火时更大。
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| 关 键 词： | 钢筋混凝土(RC) 框架结构 层间蔓延受火方式 |
Deformations of RC Frames Subjected to Different Fire Exposure Cases |
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| JING Ya-tao,WU Bo.Deformations of RC Frames Subjected to Different Fire Exposure Cases[J].Journal of Disaster Prevent and Mitigation Eng,2009,29(4):392-398. |
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| Authors: | JING Ya-tao WU Bo |
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| Institution: | JING Ya-tao,WU Bo(State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | Deformations of single-story and three-story RC frames subjected to different fire exposure casesare extensively investigated. Simulation results show that: (a)fire-spread has great impact on structuraldeformations at high temperature,and in general the lateral displacements of beam-column joints of framesunder fire-spread condition are less than those of frames in total fire;(b)the influences of firc intervals onadjacent and non-adjacent intervals are,respectively,great and negligible;and(c)the horizontal ... |
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| Keywords: | reinforced concrete(RC) frame structure outstory fire-spread mode |
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