| GA混凝土高温粘弹变形的非线性本构模型 |
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| 引用本文： | 张顺先,张肖宁,魏建明,刘福胜,张吉庆.GA混凝土高温粘弹变形的非线性本构模型[J].重庆大学学报(自然科学版),2013,36(2):91-95. |
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| 作者姓名： | 张顺先 张肖宁 魏建明 刘福胜 张吉庆 |
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| 作者单位： | 1. 华南理工大学土木交通学院,广东广州,510640
2. 重庆交通大学土木建筑学院,重庆,410621 |
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| 基金项目： | 国家重大科技支撑计划资助项目（2011BAG07B03）；国家自然科学基金资助项目（51038004） |
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| 摘 要： | 采用改进的Burgers模型推导出GA混凝土高温变形性能的粘弹性本构模型,并通过动态贯入度试验(DPT)回归改进的Burgers模型参数及其验证模型的适用性和可靠性.研究结果表明,该模型从本质上揭示模型参数和试验参数对GA高温变形的影响规律,可以有效地预测GA高温条件下永久变形的变化规律；采用DPT能较准确地反映GA混凝土在车辆荷载作用下的实际受力状况,较现有的评价方法有实质性改进；通过在50℃和60℃条件下的DPT试验可知,GA混凝土的高温变形性能对加载时间、温度较敏感,随着荷载作用时间延长和外界环境温度的升高,其变形速率和永久变形量也随着增大.
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| 关 键 词： | GA混凝土 粘弹性本构模型 高温变形 动态贯入度(DPT) |
Nonlinear constititive model research of Guss Asphalt Concrete High Temperature Viscolastic Deformation Based on Dynamic Penetration Test |
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| Zhang Shunxian,Zhang Xiaoning,Wei Jianming,Liu Fusheng and Zhang Jiqing.Nonlinear constititive model research of Guss Asphalt Concrete High Temperature Viscolastic Deformation Based on Dynamic Penetration Test[J].Journal of Chongqing University(Natural Science Edition),2013,36(2):91-95. |
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| Authors: | Zhang Shunxian Zhang Xiaoning Wei Jianming Liu Fusheng and Zhang Jiqing |
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| Affiliation: | College of Civil Engineering and Transportation,South China University of Technology, Guangzhou 510640, Guangdong, China;College of Civil Engineering and Transportation,South China University of Technology, Guangzhou 510640, Guangdong, China;College of Civil Engineering and Construction, Chongqing Jiaotong University,Chongqing 410621, China;College of Civil Engineering and Transportation,South China University of Technology, Guangzhou 510640, Guangdong, China;College of Civil Engineering and Transportation,South China University of Technology, Guangzhou 510640, Guangdong, China |
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| Abstract: | |
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| Keywords: | guss asphalt concrete viscoelastic constitutive model high temperature deformation dynamic penetration test |
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