| 露石混凝土改善桥面铺装结构稳定性研究 |
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| 引用本文： | 徐鸥明,韩森,于静涛.露石混凝土改善桥面铺装结构稳定性研究[J].武汉理工大学学报,2010(1). |
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| 作者姓名： | 徐鸥明 韩森 于静涛 |
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| 作者单位： | 长安大学材料科学与工程学院;长安大学特殊地区公路工程教育部重点实验室;中咨华科交通建设有限公司; |
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| 基金项目： | 西部建设科技项目(200731822301-8) |
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| 摘 要： | 为了评价露石混凝土对桥面铺装结构稳定性的改善,利用复合试件直接剪切试验和拉拔试验,研究了露石表面、刻槽表面、凿毛表面和原状表面的抗剪强度随正压力的变化情况,以及防水层存在对各纹理表面抗剪强度的影响。结果表明:不同正压力作用下,露石表面的抗剪强度及随正压力增大速率都明显高于其他表面形式;防水层对层间过渡区的抗剪强度贡献取决于桥面,表面纹理丰富和粗糙,内摩阻角大,则防水层的粘结贡献就小;露石表面抗剪强度主要由其表面丰富的纹理形成的摩阻力提供,所以露石表面的抗剪强度受防水层影响较小,因此使用露石桥面板能够明显提高桥面铺装的结构稳定性。
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| 关 键 词： | 道路工程 混凝土桥面铺装 露石混凝土 结构稳定性 |
Research on Improvement of Structural Stability for Concrete Bridge Deck Pavement |
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| XU Ou-ming,HAN Sen,YU Jing-tao.Research on Improvement of Structural Stability for Concrete Bridge Deck Pavement[J].Journal of Wuhan University of Technology,2010(1). |
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| Authors: | XU Ou-ming HAN Sen YU Jing-tao |
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| Affiliation: | XU Ou-ming1,HAN Sen2,YU Jing-tao3 (1.School of Material Science & Engineering,Chang\'an University,Xi\'an 710061,China,2.Key Laboratory of Highway Engineering in Special Region of Education Ministry,Xi\'an 710064,3.Zhongzi Huake Traffic Construction Technology Co.,Ltd,Beijing 100195,China) |
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| Abstract: | In order to evaluating the improvement of structural stability for concrete bridge deck pavement,the change of shearing strength with different positive pressures and effect of waterproofing layer on shearing strength are researched on the basis of direct shear testing and pull-out test of composite sample, which concrete surface are exposed-aggregate,grooving,chisel and untreated respectively.The results show that shearing strength of exposed-aggregate is higher than other forms of surface under different ... |
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| Keywords: | road engineering concrete bridge deck pavement exposed-aggregate cement concrete structural stability |
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