[1]钱振东,张勐,许静.动水压力对钢桥面环氧沥青铺装裂缝扩展影响[J].郑州大学学报(工学版),2016,37(06):48-52.[doi:10.13705/j.issn.1671-6833.2016.03.028]
　Qian Zhendong,Zhang Meng,Xu Jing.The Influence of Hydrodynamic Pressure on Steel Bridge Deck Epoxy Asphalt Concrete Pavement Crack Propagation[J].Journal of Zhengzhou University (Engineering Science),2016,37(06):48-52.[doi:10.13705/j.issn.1671-6833.2016.03.028]
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动水压力对钢桥面环氧沥青铺装裂缝扩展影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
37
期数:
2016年06期
页码:
48-52
栏目:
出版日期:
2016-11-30

文章信息/Info

Title:
The Influence of Hydrodynamic Pressure on Steel Bridge Deck Epoxy Asphalt Concrete Pavement Crack Propagation
作者:
钱振东; 张勐; 许静
1.东南大学 智能运输系统研究中心,江苏 南京,210096;2.国家知识产权局 专利局专利审查协作江苏中心,江苏 苏州,215000
Author(s):
Qian Zhendong1; Zhang Meng1; Xu Jing2
1. Intelligent Transportation System Research Center, Southeast University, Nanjing, Jiangsu, 210096; 2. Patent Examination Cooperation Jiangsu Center of the Patent Office of the State Intellectual Property Office, Suzhou, Jiangsu, 215000
关键词:
环氧沥青混凝土铺装; 动水压力; 裂缝尺寸; 裂缝尖端J积分; 裂缝扩展
Keywords:
epoxy asphalt concrete pavement; hydrodynamic pressure; size of crack; J integral of crack tip; crack propagation
DOI:
10.13705/j.issn.1671-6833.2016.03.028
文献标志码:
A
摘要:
钢桥面环氧沥青混凝土铺装发生裂缝病害后，水渗入裂缝，病害不断扩展。研究动水压力对钢桥面环氧沥青混凝土铺装裂缝的扩展作用，采用ABAQUS建立带裂缝的钢桥面环氧沥青混凝土铺装体系模型，模拟不同温度、不同铺装裂缝长度、宽度、深度及数量等条件，并通过数值分析铺装裂缝尖端的J积分值表征裂缝发展趋势。研究结果表明，动水压力越大，铺装裂缝尖端的J积分值越大，动水压力对裂缝扩展的作用越明显；铺装层温度在0~30℃时，温度越高，铺装裂缝尖端的J积分值越大，动水压力对裂缝扩展的作用越明显；动水压力对裂缝扩展的作用，受铺装裂缝长度、宽度影响大，受铺装裂缝深度、纵向裂缝数量影响小；同一动水压力作用下，网状裂缝更容易发生裂缝扩展。
Abstract:
After cracks appear on steel bridge deck epoxy asphalt concrete pavement, the water would seep in-to cracks which would lead to crack propagation. This paper studied the impact of hydrodynamic pressure on the propagation of steel bridge deck epoxy asphalt concrete pavement crack. ABAQUS was utilized to build a model of steel bridge deck epoxy asphalt concrete pavement with crack. The J integral of pavement crack un-der different temperatures, different pavement crack widths, different pavement crack lengths, different pave-ment crack depths and different number of pavement cracks were calculated. The impact of hydrodynamic pressure on steel bridge deck epoxy asphalt concrete pavement crack propagation was discussed. The results indicated that when hydrodynamic pressure increased, the J integral of pavement crack tip increased, and the effect of hydrodynamic pressure on crack propagation was more obvious. When the temperature was within the range of 0℃ to 30℃, the increase of temperature would lead to the increase of J integral of pavement crack tip and the effect of hydrodynamic pressure on crack propagation would be more obvious. The effect of hydrody-namic pressure on the crack propagation changed obviously under different crack lengths and widths, while the effect of hydrodynamic pressure on the crack propagation changed unobviously under different crack depths and different number of longitudinal crack. Pattern cracking was easy to propagate under the same hydrodynamic pressure.
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