| 非均布温度条件下CRCP+AC复合式路面温度应力分析 |
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| 引用本文： | 李嘉,朱伟平,黄新颜. 非均布温度条件下CRCP+AC复合式路面温度应力分析[J]. 湖南大学学报(自然科学版), 2009, 36(10) |
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| 作者姓名： | 李嘉 朱伟平 黄新颜 |
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| 作者单位： | 1. 湖南大学,土木工程学院,湖南长沙,410082
2. 湖南大学,土木工程学院,湖南长沙,410082;广西交通投资集团有限公司,广西南宁,530028 |
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| 摘 要： | 根据传热学相关理论,应用大型有限元软件ANSYS10.0对夏季高温条件下CRCP+AC复合式路面瞬态温度场进行了模拟,利用温度-结构耦合原理计算了日周期气温下路面结构的温度应力.分析过程中,考虑了温度沿路面深度方向分布的非线性特征及初始参考温度的非均匀性,对CRCP+AC复合式路面温度应力的影响因素进行了分析.研究结果表明,AC层厚度、CRC层厚度、CRC与基层接触条件的改变对路面结构温度应力的影响较大.当AC层厚度小于6 cm后,改变CRC层厚度对混凝土板温度应力影响不大.
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| 关 键 词： | 传热学 温度-结构耦合原理 CRCP+AC复合式路面 温度场 温度应力 |
Thermal Stress Analysis of CRCP+AC Composite Pavement under Non-uniform Temperature Distribution |
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| LI Jia,ZHU Wei-ping,HUANG Xin-yan. Thermal Stress Analysis of CRCP+AC Composite Pavement under Non-uniform Temperature Distribution[J]. Journal of Hunan University(Naturnal Science), 2009, 36(10) |
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| Authors: | LI Jia ZHU Wei-ping HUANG Xin-yan |
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| Affiliation: | LI Jia1,ZHU Wei-ping1,HUANG Xin-yan1,2(1.College of Civil Engineering,Hunan Univ,Changsha,Hunan 410082,China,2.Guangxi Communications Investment Group Company,Nanning,Guangxi 530028,China) |
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| Abstract: | Based on the heat conduction theory,the transient thermal field of CRCP+AC composite pavement on high-temperature was simulated with ANSYS10.0.The thermal stress of pavement on daily cycle temperature was calculated by using thermal-structure coupling theory.In the analysis,the impact factors of the thermal stress were studied for CRCP+AC composite pavement to consider the nonliner distribution feature of temperature along the pavement depths and the initial nonhomogeneous reference temperature.The results ... |
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| Keywords: | heat conduction thermal-structure coupling theory CRCP AC composite pavement thermal field thermal stress |
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