脱空对机场道面板接缝传荷能力影响分析

发布时间：2018-09-03 12:49

【摘要】：采用有限元分析方法和多组模型试验,对考虑板中脱空和板角脱空两种情况的机场刚性道面板接缝处的应力及传荷能力进行分析。结果表明,道面板接缝处的传荷效率、道面板板底最大弯拉应力随着板底脱空面积的增大而增大。对于相同的脱空面积,接缝传荷效率和板底最大弯拉应力随着地基反应模量的增大而减小;而且板中脱空状态下的传荷效率略高于板角脱空状态下的传荷效率,板中脱空对脱空面积的反应比较敏感,这说明板中脱空对道面板产生的危害比板角脱空对道面板产生的危害要严重。
[Abstract]:The finite element analysis method and multi-group model tests are used to analyze the stress and load transfer capacity at the joint of the rigid track slab in the airport considering the two conditions of plate void and plate angle void. The results show that the load transfer efficiency and the maximum bending tensile stress increase with the increase of the gap area. For the same void area, the joint load transfer efficiency and the maximum bending tensile stress decrease with the increase of the foundation response modulus, and the load transfer efficiency of the plate in the void state is slightly higher than the load transfer efficiency in the plate angle void state. The void in the plate is more sensitive to the reaction of the void area, which indicates that the harm of the void in the plate to the pavement panel is more serious than that of the angular void in the plate.
【作者单位】： 中国民航大学机场学院;
【分类号】：V351.1
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本文编号：2220023