| 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].地震学刊,2009(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： | 基金项目：国家自然科学基金项目（50738005）、国家科技部支撑计划子课题（2006BAJ03A03-12）资助 |
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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 Seismology,2009(4):392-398. |
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| Authors: | JING Ya-tao WU Bo |
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| Affiliation: | (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 cases are extensively investigated. Simulation results show that： （a） fire-spread has great impact on structural deformations at high temperature, and in general the lateral displacements of beam-column joints of frames under fire-spread condition are less than those of frames in total fire; （b） the influences of fire intervals on adjacent and non-adjacent intervals are, respectively, great and negligible; and （c） the horizontal displacement of side beam-column joint of single-story frame subjected to asymmetric fire may be larger than that of frame in total fire. |
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| Keywords: | reinforced concrete（RC） frame structure outstory fire-spread mode |
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