| 高温作用后混凝土强度与变形试验研究 |
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| 引用本文： | 徐或,徐志胜,朱玛.高温作用后混凝土强度与变形试验研究[J].铁道科学与工程学报,2000,18(2):13-16,21. |
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| 作者姓名： | 徐或 徐志胜 朱玛 |
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| 作者单位： | 长沙铁道学院土木建筑学院，湖南长沙 410075 |
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| 基金项目： | 湖南省中青年科技基金;97-250-5; |
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| 摘 要： | 对86个混凝土试块在常温～1000 ℃范围内温度作用后，进行了强度与变形试验和理论分析工作，主要包括混凝土抗压强度、抗拉强度、轴心抗压强度及弹性模量等几个方面．探讨了高温作用后混凝土强度和变形的变化规律，着重分析它们与作用温度的相互关系，并建立简明的数学表达式．
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| 关 键 词： | 高温 混凝土 强度 变形 弹性模量 high temperature concrete |
| 文章编号： | 1000-2499(2000)02-0013-04 |
| 修稿时间： | 1999年11月15日 |
Experiment Investigation of Strength and Reformation of Concrete after High Temperature |
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| XU Yu,Zhi-sheng,ZHU Ma.Experiment Investigation of Strength and Reformation of Concrete after High Temperature[J].Journal of Railway Science and Engineering,2000,18(2):13-16,21. |
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| Authors: | XU Yu Zhi-sheng ZHU Ma |
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| Abstract: | In order to investigate the effect of temperature (from normal atmospheric temper ature to 1000℃)caused by fire on the strength and deformation of concrete,a total of 86specimens have been performed under different temperature conditions. The content consistsof the ultimate tension and tensile,axial tension and elasticity modulus of concrete subjectedto fire and then cooled in air. The regularity and mechanism of change in concrete on strengthand deformation after high temperature arenalyzed,Emphasis is laid on the relationship be tween temperature and the strength and deformation ,and the relevant formulas are proposedin this paper. |
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| Keywords: | high temperature concrete strength deformation elasticity modulus |
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