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工程科学与技术:2008,40(5):106-110
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高温下钢绞线材料力学性能的试验研究
(1.同济大学;2.武汉理工大学)
Experimental studies on the properties of steel strand at elevated temperatures
(1.Tongji University;2.Wuhan University of Technology)
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投稿时间:2008-03-21    修订日期:2008-04-30
中文摘要: 为了便于对预应力结构在高温下的力学分析,在高温下对工程中常见的钢绞线束进行了拉伸试验。共试验了27根预应力钢绞线在不同温度下的力学性能,得到了相应温度下的应力-应变关系曲线、屈服强度、抗拉强度及弹性模量与温度关系试验数据。根据试验结果回归出了可用于理论分析的钢绞线高温材性模型并与试验数据及相应的规范值进行了比较并对本文试验结果的合理使用范围进行了总结。
Abstract:To analyze the fire resistance of the prestressed structures at high temperature, 27 steel strands members were tensioned at high temperatures. The mechanical properties such as stress-strain curve, yield strength,tensile strength, modulus of elasticity of steel strand at high temperatures and its mechanics models were obtained. The material model can be used to analyze prestressed structure’s response at elevated temperature. At last, the application scope of material model was declared.
文章编号:200800059     中图分类号:    文献标志码:
基金项目:国家杰出青年科学基金资助项目
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引用文本:
李国强,周焕廷,蒋首超.高温下钢绞线材料力学性能的试验研究[J].工程科学与技术,2008,40(5):106-110.
liguoqiang,zhouhuanting,jiangshouchao.Experimental studies on the properties of steel strand at elevated temperatures[J].Advanced Engineering Sciences,2008,40(5):106-110.