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超高性能轻型组合桥面铺装体系基本力学性能研究

, PP. 55-61

Keywords: 桥梁工程,桥面铺装,力学计算,轻型组合桥面,超高韧性混凝土,聚合物混凝土

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Abstract:

为解决大跨径钢桥面疲劳开裂和铺装层早期损坏这两大难题,提出薄层聚合物混凝土(TPO)铺筑于超高韧性混凝土(STC)-钢桥面板的超高性能轻型组合桥面铺装体系。基于马房大桥的有限元模型,分析STC+TPO铺装体系的受力和变形特点。计算结果表明采用STC+TPO铺装体系,钢桥面板中的拉应变平均降幅达76.4%,铺装层中的拉应变峰值和竖向位移峰值降幅均大于49.0%;此外,车辆荷载、环境温度和铺装层厚度等对STC+TPO铺装体系的受力状况有较大影响,60℃时STC-TPO界面抗剪强度可达2.56MPa;STC+TPO铺装体系能大幅提高桥面系刚度,降低铺装层和桥面板的应力应变幅值,从而减小桥面板和铺装层疲劳开裂的风险;同时,STC和TPO的抗拉强度及界面抗剪强度均满足重载和高温环境下的使用要求。

References

[1]  黄卫. 大跨径桥梁钢桥面铺装设计 [J]. 土木工程学报,2007,40(9): 65-77. HUANG Wei. Design of Deck Pavement for Long-span Steel Bridges [J]. China Civil Engineering Journal,2007, 40(9): 65-77.
[2]  陈德荣,徐风云,王武刚,等. 特大跨径桥梁钢桥面铺装结构研究和设计理念的探讨 [J]. 公路,2009(1): 95-100. CHEN De-rong,XU Feng-yun,WANG Wu-gang,et al. Research on Steel Deck Pavement Structure of Super-long Span Bridge and Discussion about design Conception[J]. Highway,2009(1): 95-100.
[3]  WALTER R,OLESEN J F,STANG H,et al. Analysis of an Orthotropic Deck Stiffened with a Cement-based Overlay [J]. Journal of Bridge Engineering,2007,12(3): 350-363.
[4]  PFEIL M S, BATTISTA R C, MERGULH?O A J R. Stress Concentration in Steel Bridge Orthotropic Decks [J]. Journal of Constructional Steel Research,2005,61(8): 1172-1184.
[5]  罗桑,钱振东,王汇,等. 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:英文版,2011,27(4): 417-422. LUO Sang,QIAN Zhen-dong,WANG Hui,et al. 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,2011,27(4): 417-422.
[6]  王迎军, 朱桂新, 陈旭东. 虎门大桥钢桥面铺装的使用和维护 [J]. 公路交通科技,2004,21(8): 64-67. WANG Ying-jun,ZHU Gui-xin,CHEN Xu-dong. The Using and Maintenance of the Steel Deck Pavement in Humen Bridge [J]. Journal of Highway and Transportation Research and Development,2004,21(8): 64-67.
[7]  MURAKOSHI J, YANADORI N, UI T,et al. Research on Steel Fiber Reinforced Concrete Pavement on Orthotropic Steel Deck [C]//Proceedings of the 2nd International Orthotropic Bridge Conference. Sacramento: ASCE,2008: 359-371.
[8]  SHAO Xu-dong,YI Du-tao,HUANG Zheng-yu,et al. Basic Performance of the Composite Deck System Composed of Orthotropic Steel Deck and Ultrathin RPC Layer [J]. Journal of Bridge Engineering,2013, 18(5): 417-428.
[9]  李嘉,冯啸天,邵旭东,等. 正交异性钢桥面-RPC薄层组合铺装体系研究 [J]. 湖南大学学报:自然科学版,2012,39(12): 7-12. LI Jia,FENG Xiao-tian,SHAO Xu-dong, et al. Research on Composite Paving System with Orthotropic Steel Bridge Deck and Thin RPC Layer[J]. Journal of Hunan University: Natural Science Edition,2012,39(12): 7-12.
[10]  李嘉,冯啸天,邵旭东,等. STC钢桥面铺装新体系的力学计算与实桥试验对比分析 [J]. 中国公路学报, 2014,27(3): 11-17. LI Jia,FENG Xiao-tian,SHAO Xu-dong,et al. Comparison of Mechanical Calculation and Actual Test for New STC Steel Bridge Paving System[J]. China Journal of Highway and Transport,2014,27(3): 11-17.
[11]  北京铁科工程检测中心. 马房北江大桥钢箱梁钢-混组合桥面铺装效果检测报告 [R]. 北京:北京铁科工程检测中心,2012. Beijing Tieke Engineering Inspection Center. The Performance Testing Report of Composite Deck Pavement System on Steel Box Girder of Mafang Beijiang Bridge [R]. Beijing: Beijing Tieke Engineering Inspection Center, 2012.
[12]  DINITZ A M, STENKO M S. The Successful Use of Thin Polysulfide Epoxy Polymer Concrete Overlays on Concrete and Steel Orthotropic Bridge Decks [C]// Structures Congress 2010. Orlando,FL:ASCE,2010:530-540.
[13]  DAVID W F,DAVID W W. Long-term Performance of Polymer Concrete for Bridge Decks [R]. Washington, D.C.: Transportation Research Board,2011:1-64.
[14]  WHEAT D L,FOWLER D W,AL-NEGHEIMISH A I. Thermal and Fatigue Behavior of Polymer Concrete Overlaid Beams [J]. Journal of Materials in Civil Engineering,1993,5(4): 460-477.
[15]  张平,李宇峙,徐敏. 环氧树脂混凝土弯曲变形性能试验研究 [J]. 中外公路,2009,29(1): 208-211. ZHANG Ping,LI Yu-shi,XU Min. Experimental Investigation on Bending Behavior of Epoxy Polymer Concrete [J]. Journal of China & Foreign Highway,2009, 29(1): 208-211.
[16]  刘梦麟,邵旭东,张哲,等. 正交异性钢板-超薄RPC组合桥面板结构的抗弯疲劳性能试验 [J]. 公路交通科技,2012,29(10): 46-53. LIU Meng-lin,SHAO Xu-dong,ZHANG Zhe,et al. Experiment on Flexural Fatigue Performance of Composite Deck System Composed of Orthotropic Steel Deck and Ultra-thin RPC Layer [J]. Journal of Highway and Transportation Research and Development,2012,29(10): 46-53.

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