| 水泥路面接缝传荷能力评价新方法研究 |
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| 引用本文： | 孙昌开.水泥路面接缝传荷能力评价新方法研究[J].中南公路工程,2013(5):236-238. |
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| 作者姓名： | 孙昌开 |
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| 作者单位： | 湖南环达公路桥梁建设总公司,湖南长沙410004 |
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| 摘 要： | 水泥路面板间传荷能力的准确性对接缝传荷失效判断有重要意义,目前要主采用接缝两侧的竖向位移比值作为评价评价水泥路面板间传荷能力的主要指标.在winkler地基上分别用位移及应力表征水泥板间的传荷关系,分析得到弹性基础上,应力能更为准确的表征板间的传荷关系,并在everfew程序计算结果上,完整的定义了用应力比值定义传荷系数.
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| 关 键 词： | 水泥路面 传荷系数 有限元 传力杆 |
New Evaluation Method Study on Load Transfer Efficiency of Cement Concrete Road Surface Joints |
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| SUN Changkai.New Evaluation Method Study on Load Transfer Efficiency of Cement Concrete Road Surface Joints[J].Central South Highway Engineering,2013(5):236-238. |
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| Authors: | SUN Changkai |
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| Institution: | SUN Changkai(Hunan Huanda Road ＆ Bridge Corporation, Changsha, Hunan 410004, China) |
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| Abstract: | The accuracy of load transfer efficiency between cement concrete surfaces plays a significant role on judging invalidity of joint load transfer.At the present time,vertical displacement ratios of joint both sides are employed as the main index to evaluate the load transfer efficiency of cement concrete road surface.In this article,vertical displacement and stress are used separately to indicate the load transfer between cement concrete surfaces on windkler ground.By analyzing elastic base,it is found out that the stress is more accurate to indicate the surface load transfer.Furthermore,based on everfew process calculation,methods of stress to define load transfer ratio have been fully demonstrated. |
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| Keywords: | cement concrete surface load transfer ratio finite element transfer rod |
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