| 南京第二长江大桥环氧铺装服役状况调研与分析——服役十年回顾 |
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| 引用本文： | 罗桑,钱振东,王汇.南京第二长江大桥环氧铺装服役状况调研与分析——服役十年回顾[J].东南大学学报,2011(4):417-422. |
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| 作者姓名： | 罗桑 钱振东 王汇 |
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| 作者单位： | 东南大学智能运输系统研究中心 |
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| 基金项目： | The National Key Technology R&D Program during the 11th Five-Year Plan Period(No.2009BAG15B03) |
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| 摘 要： | 为研究南京第二长江大桥环氧沥青混凝土铺装的服役性能,对其进行了现场调研与分析,包括铺装经受的交通量特征及铺装病害类型和程度等.调研观测发现:在3.8×104 m2的环氧铺装中,坑洞与龟裂等严重病害面积大约30 m2;铺装层裂缝可分为纵向裂缝、短裂缝、鼓包裂缝、圆形裂缝等；车辙和推移病害在南京二桥铺装中未出现.根据现场调...
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| 关 键 词： | 钢桥 正交异性板 裂缝 坑洞 调查 |
Condition survey and analysis of epoxy asphalt concrete pavement on Second Nanjing Yangtze River Bridge:a ten-year review |
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| Luo Sang Qian Zhendong Wang Hui.Condition survey and analysis of epoxy asphalt concrete pavement on Second Nanjing Yangtze River Bridge:a ten-year review[J].Journal of Southeast University(English Edition),2011(4):417-422. |
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| Authors: | Luo Sang Qian Zhendong Wang Hui |
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| Institution: | Luo Sang Qian Zhendong Wang Hui(Intelligent Transportation System Research Center,Southeast University,Nanjing 210096,China) |
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| Abstract: | To obtain a complete picture of the epoxy asphalt pavement condition on the Second Nanjing Yangtze River Bridge,an on-site survey is conducted to collect information regarding traffic composition and extents of pavement distresses.The survey shows that 30 m2 out of the entire 3.8×104 m2 pavement exhibits potholes and alligator cracks.Other surface cracks are also found,including regular longitudinal cracks,short hairline cracks,bubble cracks,and ring cracks.Rutting and shoving are not observed on the pavement.The causes of pavement distresses are discussed by analyzing the pavement mechanical response with actual traffic composition.Research results indicate that the regular longitudinal cracks occurring at ribs near wheelpaths are due to fatigue damage.Short hair cracking and bubble cracking are mainly related to construction defects.Alligator cracks are the results of the development of regular,short hair and bubble cracks lacking effective maintenance.Potholes are induced by the cracking and moisture ingression. |
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| Keywords: | steel bridge orthotropic decks cracking pothole survey |
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