| 基于应力吸收层的旧水泥混凝土加铺层结构耦合应力分析 |
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| 引用本文： | 杜衍庆,宋金华,王涛,王亮. 基于应力吸收层的旧水泥混凝土加铺层结构耦合应力分析[J]. 鲁东大学学报, 2011, 27(1) |
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| 作者姓名： | 杜衍庆 宋金华 王涛 王亮 |
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| 作者单位： | 河北工业大学土木工程学院;枣庄市公路局; |
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| 摘 要： | 通过三维有限元数值模拟方法,分析了沥青加铺层厚度、模量,基础模量与应力吸收层厚度、模量对破碎后的旧水泥混凝土路面加铺层结构的荷载-温度耦合应力的变化规律.计算结果表明:适当增加加铺层的厚度对防止反射裂缝的产生是十分有效的;但不能用提高加铺层模量的方法来防止反射裂缝;适当控制基础模量可以防止反射裂缝的产生;适当提高应力吸收层的厚度对预防反射裂缝效果明显;提高应力吸收层的模量对预防反射裂缝效果不明显.
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| 关 键 词： | 耦合应力 三维有限元 应力吸收层 旧水泥路面 |
Stress-absorbing Layer Based on Old Concrete Pavement Structure Coupling Stress Analysis |
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| Du Yan-qing,Song Jin-hua,Wang Tao,Wang Liang. Stress-absorbing Layer Based on Old Concrete Pavement Structure Coupling Stress Analysis[J]. Ludong University Journal (Natural Science Edition), 2011, 27(1) |
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| Authors: | Du Yan-qing Song Jin-hua Wang Tao Wang Liang |
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| Affiliation: | Du Yan-qing1,Song Jin-hua1,Wang Tao2,Wang Liang1(1.Hebei University of Technology,Tianjin 300401,China,2.Highway Bureau of Zaozhuang,Zaozhuang 277101,China) |
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| Abstract: | Using the 3D finite element method,the effects of the thickness and modulus of asphalt overlay,the modulus of foundation and the thickness and modulus of stress-absorbing layer on the old broken cement concrete pavement structure of the load-thermal coupling stress are analyzed.The results showed that the suitable increase of the overlay thickness has great effect on the prevention of the occurrence of reflection cracks,it is no use tring to increase the overlay modulus to prevent the reflection cracks;but ... |
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| Keywords: | coupling stress 3D finite element stress-absorbing layer old cement concrete pavement |
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