| 基于使用性能的钢桥面铺装环氧沥青混凝土设计 |
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| 引用本文： | 张肖宁,张顺先,徐伟,黄志勇,吴文亮,苑苗苗. 基于使用性能的钢桥面铺装环氧沥青混凝土设计[J]. 华南理工大学学报(自然科学版), 2012, 40(7): 1-7 |
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| 作者姓名： | 张肖宁 张顺先 徐伟 黄志勇 吴文亮 苑苗苗 |
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| 作者单位： | 华南理工大学土木与交通学院,广东广州,510640 |
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| 基金项目： | 国家自然科学基金重点资助项目，国家重大科技支撑计划项目 |
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| 摘 要： | 针对钢桥面铺装环氧沥青混凝土使用中出现的问题,分析了现有设计理论和方法的不足,采用改进的密断级配CAVF方法来提高环氧沥青混凝土的抗滑性能;基于断裂力学和能量法原理,提出以冲击韧性作为环氧沥青混凝土疲劳性能的评价指标,采用剩余劲度模量比来反映环氧沥青混凝土的疲劳性能,并通过试验建立起冲击韧性和剩余劲度模量比之间的关系.研究结果表明:采用CAVF方法设计的环氧沥青混凝土的抗滑性能明显改善;冲击韧性和疲劳性能之间有良好的线性相关性,采用冲击韧性能够有效地评价环氧沥青混凝土的疲劳性能.
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| 关 键 词： | 钢桥面铺装 环氧沥青 CAVF方法 抗滑性能 冲击韧性 疲劳性能 |
Application Performance-Based Design of Epoxy Asphalt Concrete Applied to Steel Bridge Deck Pavement |
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| Zhang Xiao-ning , Zhang Shun-xian , Xu Wei , Huang Zhi-yong , Wu Wen-liang , Yuan Miao-miao. Application Performance-Based Design of Epoxy Asphalt Concrete Applied to Steel Bridge Deck Pavement[J]. Journal of South China University of Technology(Natural Science Edition), 2012, 40(7): 1-7 |
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| Authors: | Zhang Xiao-ning Zhang Shun-xian Xu Wei Huang Zhi-yong Wu Wen-liang Yuan Miao-miao |
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| Affiliation: | Zhang Xiao-ning Zhang Shun-xian Xu Wei Huang Zhi-yong Wu Wen-liang Yuan Miao-miao(School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China) |
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| Abstract: | In order to solve the problems existing in the application of epoxy asphalt concrete to steel bridge deck pavement,the shortcomings of the existing design theories and methods are analyzed,and the improved CAVF method is used to increase the skid resistance of the concrete.Then,based on the fracture mechanics and the energy method,the impact toughness is proposed as an evaluation index of the fatigue properties of epoxy asphalt concrete,and the residual stiffness modulus ratio is employed to reflect the fatigue properties.Moreover,the relationship between the impact toughness and the residual stiffness modulus ratio is revealed by tests.The results show that the skid resistance of the epoxy asphalt concrete designed by the CAVF method significantly improves,that there exists a good linear relation between the impact toughness and the fatigue properties,and that the impact toughness can be used to effectively evaluate the fatigue properties of epoxy asphalt concrete. |
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| Keywords: | steel bridge deck pavement epoxy asphalt CAVF method skid resistance performance impact toughness fatigue property |
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