为了提高混凝土桥面板的耐久性和降低维修成本,本次研究建立了一种基于FPR的不配筋混凝土桥面结构体系.该桥面结构合理利用面板内的拱效应作为承载机理,采用GFRP杆件作为横向约束杆件,因此面板本体内不需配置受力筋.以支撑梁、约束杆件间距和加载区位置为结构参数,本文建立了一组1∶3比例缩小的桥面结构试验模型并对其进行了静力加载试验.分析研究桥面结构在轮胎荷载作用下的结构响应,清晰揭示了拱效应对该桥面结构承载性能的作用和影响.基于所建立非线性有限元模型计算结果与试验结果吻合良好,本文采用该数值模型进行了深入的参数分析,研究混凝土强度、拱高以及外置FRP约束杆件配置方式变化对该结构工作性能的影响.
参考文献
| [1] | 肖能立.怀通高速公路桥梁建设中钢筋锈蚀问题的分析[J].公路交通科技·应用技术版,2013(12):209-211. |
| [2] | 薛伟辰,康清梁.纤维塑料筋在混凝土结构中的应用[J].工业建筑,1999,(2):19-28.,1999. |
| [3] | 许贤敏.国外不配筋的砼桥面板简介[J].云南交通科技,2000(04):43-46. |
| [4] | 冯鹏,陆新征,叶列平.纤维增强复合材料建设工程应用技术--试验、理论与方法[M].北京:中国建筑工业出版社,2011.,2011. |
| [5] | 郑愚,改进型桥梁面板预制构件[P]. |
| [6] | 郑愚,Su Taylor,Des Robinson .基于压缩薄膜效应的混凝土桥面板极限承载力算法研究[J].哈尔滨工业大学学报,2010,42(4):1569-1576.,2010. |
| [7] | 李春红,郑愚,魏德敏.拱效应下纵向约束刚度对GFRP筋混凝土桥梁面板力学性能的影响[J].玻璃钢/复合材料,2013(03):47-52. |
| [8] | Yu Zheng,Chunhong Li,Guoyou Yu,Investigation of Structural Behaviours of Laterally Restrained GFRP Reinforced Concrete Slabs[J].Composites Part B:Engineering,2012,438(2):1586-1597.,2012. |
| [9] | Yu Zheng,Su Taylor,Des Robinson,David Cleland,Investigation of Ultimate Strength of Deck Slabs in Steel-Concrete Bridges[J].ACI Structural Journal,2010,107(1):82-91.,2010. |
| [10] | 潘云锋,郑愚,钟永刚.GFRP筋混凝土桥面板内压缩薄膜效应的试验研究[J].玻璃钢/复合材料,2013(01):3-9. |
| [11] | Department of Regional Development for Northern Ireland (formerly Department of the Environment or DOE)," Design of M-beam bridge decks"-Amendment No.3 to Bridge Design Code N.I.Roads Service Headquarters[S]. |
| [12] | GB 50012-2002,混凝土结构设计规范[S].,2002. |
| [13] | Yu Zheng,Guoyou Yu Yunfeng Pan,Investigation of Ultimate Strengths of Concrete Bridge Deck Slabs Reinforced with GFRP Bars[J].Construction and Building Materials,2012,28(1):482-492.,2012. |
| [14] | Mufti .A.and Bakht,B.Steel-free fiber reinforced concrete bridge decks:new construction and replacement[J].Canadian Journal of Civil Engineering,1984,11(4):943-954.,1984. |
| [15] | Mufti,A .A.,Bakht,B.and Newhook,J.P.(2004),Precast Concrete Decks for Slab on Girder Systems:A New Approach[J].American Concrete Institute Structural Journal-ACI International,2004,101(3):395-402.,2004. |
| [16] | ABAQUS Version 6.10 Documentation[M].2010.,2010. |
| [17] | Yu Zheng,Des Robinson,Su Taylor and David Cleland,Finite Element Investigation of Structural Behaviours of Deck Slabs in Composite Bridges[J].Journal of Engineering Structures,2009,31(8):1762-1776.,2009. |
| [18] | Yu Zheng,Robinson D,Taylor S.E.,Cleland D.Investigation of the Compressive Membrane Action in Composite Steel-Concrete Bridge Decks[C].3rd International Conference on Steel and Composite Structures,2007,Manchester.,2007. |
| [19] | Yu Zheng,Des Robinson,Su Taylor and David Cleland .Non-linear finite element analysis of pouching capacities of steel-concrete bridge deck slabs[J].Proceedings of the institution of civil engineers-structures and buildings,2012,165(5):255-259.,2012. |
| [20] | 潘云峰,郑愚,于国友.对FRP筋混凝土桥梁面板承载力性的非线性有限元分析[J].玻璃钢/复合材料,2013,(3):13-19.,2013. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%