| 移动荷载作用下柔性路面的动力响应 |
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| 引用本文： | 张洪亮,胡长顺,许伟清. 移动荷载作用下柔性路面的动力响应[J]. 长安大学学报(自然科学版), 2005, 25(5): 6-10 |
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| 作者姓名： | 张洪亮 胡长顺 许伟清 |
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| 作者单位： | 1. 长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064
2. 无锡市安阳市政建设工程有限公司,江苏,无锡,214183 |
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| 基金项目： | 国家西部交通建设科技项目（2001 318 000 18） |
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| 摘 要： | 将车辆荷载的接地形状简化为矩形，将柔性路面视作多层粘弹性半空间体，并考虑路基材料对应变幅的依赖性，采用修正的平面应变模型，用传递矩阵配拉氏变换和傅立叶变换法，对移动的平稳荷载作用下柔性路面的动力响应进行了分析，得到了柔性路面任意深度处的应力和位移，并将理论计算结果用模型试验进行了验证。结果表明，移动荷载作用下柔性路面的动力响应分析方法结果正确，计算简单，便于应用。
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| 关 键 词： | 道路工程 柔性路面 动力响应 移动荷载 多层粘弹体系 传递矩阵 拉氏变换 傅立叶变换 |
| 文章编号： | 1671-8879（2005）05-0006-05 |
| 收稿时间： | 2004-11-12 |
| 修稿时间： | 2004-11-12 |
Dynamic response of flexible pavement under moving load |
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| ZHANG Hong-liang,HU Chang-shun,XU Wei-qing. Dynamic response of flexible pavement under moving load[J]. JOurnal of Chang’an University:Natural Science Edition, 2005, 25(5): 6-10 |
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| Authors: | ZHANG Hong-liang HU Chang-shun XU Wei-qing |
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| Abstract: | Simplifying the contract shape between tire and pavement as a rectangle, considering the flexible pavement as multilayered viscoelastic half space, taking into account the strong dependency on strain of the properties of soil, based on a modified plane strain model, this paper derived the explicit solution for the dynamic response in the flexible pavement under moving load. The combination of transfer matrix, Laplace transform and Fourier transform approach were used in the dynamic response analysis. The predictive capability of the model are verified by the laboratory model. The results show that the method to analyze the dynamic response in the flexible pavement under moving load presented in this paper is correct, simple and convenient for application. 1 tab, 5 figs, 6 refs. |
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| Keywords: | road engineering flexible pavement dynamic response moving load multilayered viscoelastic body transfer matrix Laplace transform Fourier transform |
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