火灾对混凝土结构性能影响的研究  

Research on the Behavior of Reinforced Concrete after Fire

作　　者：尹可芳[1] 韩阳[1] 巴松涛 

机构地区：[1]河南工业大学防灾减灾工程研究所,郑州450052 [2]河南省建筑科学研究院,郑州450053

出　　处：《河南科学》2007年第6期947-950,共4页Henan Science

基　　金：河南省自然科学基金项目(0611022200)

摘　　要：通过对比大量文献资料,分析了火灾高温对混凝土强度的影响,抗拉强度随温度的变化规律,以及不同的冷却方式对高温后混凝土强度的影响;分析了影响钢筋与混凝土高温粘结性能的因素及粘结性能随温度变化的趋势;总结了不同温度对不同类型钢筋抗拉强度的影响,并对今后的研究提出了一些建议.Through analyzing the experiment results presented in other literatures, this paper mainly introduced the nature of concrete after fire （high temperature）, explored the regularity of compressive strength and tensile strength of concrete at different temperatures, and strength of concrete subjected to fire and then cooled with different manner; analyzed the factors including the bond performance between concrete and steel bars under or after high temperature and the tender of this property; summarized the tension of different steel bars with different temperatures, and the computing method; and lastly gave some suggestion for the research in future.

关 键 词：火灾 混凝土强度 粘结强度 

分 类 号：TU37[建筑科学—结构工程]