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基于力学与造价的CFRP-钢组合拉索斜拉桥设计理论

, PP. 97-106

Keywords: 桥梁工程,CFRP-钢组合拉索,刚度,经济性能,斜拉桥,设计理论

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Abstract:

?针对1400~2800m主跨斜拉桥整体刚度不足的问题,提出一种新型结构方案——碳纤维增强塑料(CFRP)-钢组合拉索斜拉桥。该方案将CFRP斜拉索与传统钢斜拉索同时应用于斜拉桥中,组合2种材料高强轻质及弹性模量高的优点,以达到提高斜拉桥整体刚度的设计目的。通过基于力学与造价的参数分析提出该组合拉索斜拉桥的3种设计原则:等安全系数等效刚度最优、等安全系数等效刚度性价比最优、等造价等效刚度最优,并分别给出详细的设计步骤及设计用图。最后,进行了多种方案1400m主跨斜拉桥试设计。结果表明:CFRP-钢组合拉索斜拉桥在力学与经济性方面均具有一定优势,其工程应用具有可行性,是主跨为1400~2800m斜拉桥的优选方案之一。

References

[1]  梅葵花.CFRP拉索斜拉桥的研究[D].南京:东南大学,2005.
[2]  GIMSING N J.Cable-supported Bridges[M].3rd ed.New York:John Wiley & Sons,2011.
[3]  IRVINE H M.Cable Structures[M].Cambridge:The MIT Press,1981.
[4]  吕志涛.高性能材料FRP应用与结构工程创新[J].建筑科学与工程学报,2005,22(1):1-5.
[5]  LU Zhi-tao.Application of High Performance FRP and Innovations of Structure Engineering[J].Journal of Architecture and Civil Engineering,2005,22(1):1-5.
[6]  陈凤山,赵国藩,王兆忠.CFRP加固损伤钢筋混凝土梁的性能试验[J].建筑科学与工程学报,2008,25(4):116-122.
[7]  KHALIFA M A,HODHOD O A,ZAKI M A.Analysis and Design Methodology for an FRP Cable-stayed Pedestrian Bridge[J].Composites:Part B,1996,27(3/4):307-317.
[8]  张治成,谢 旭,张 鹤.大跨度斜拉桥钢和碳纤维拉索设计安全系数[J].浙江大学学报:工学版,2007,41(9):1443-1449,1456.
[9]  LIN Yuan-pei.Cable-stayed Bridge[M].Beijing:China Communications Press,2004.
[10]  NAGAI M,FUJINO Y,YAMAGUCHI H,et al.Feasibility of a 1 400 m Span Steel Cable-stayed Bridge[J].Journal of Bridge Engineering,2004,9(5):444-452.
[11]  CHEN Feng-shan,ZHAO Guo-fan,WANG Zhao-zhong.Test on Performance of Damaged RC Beams Strengthened with CFRP[J].Journal of Architecture and Civil Engineering,2008,25(4):116-122.
[12]  FREIRE A M S,NEGRAO J H O,LOPES A V.Geometrical Nonlinearities on the Static Analysis of Highly Flexible Steel Cable-stayed Bridges[J].Computers and Structures,2006,84(31/32):2128-2140.
[13]  NOSTERNIG J F.Carbon Fiber Composites as Stay Cables for Bridges[J].Applied Composite Materials,2000,7(2):139-150.
[14]  苗家武.超大跨度斜拉桥设计理论研究[D].上海:同济大学,2006.
[15]  MIAO Jia-wu.Study for Design Theories of Super-long Span Cable-stayed Bridges[D].Shanghai:Tongji University,2006.
[16]  ZHANG Zhi-cheng,XIE Xu,ZHANG He.Safety Factor for Steel and Carbon Fiber Reinforced Plastic Cables of Long-span Cable-stayed Bridges[J].Journal of Zhejiang University:Engineering Science,2007,41(9):1443-1449,1456.
[17]  林元培.斜拉桥[M].北京:人民交通出版社,2004.
[18]  熊 文.CFRP与钢组合斜拉索设计理论研究[D].上海:同济大学,2009.
[19]  XIONG Wen.Design Theory of CFRP and Steel Composite Stay Cables[D].Shanghai:Tongji University,2009.
[20]  MEI Kui-hua.Study on Cable-stayed Bridges with CFRP Cables[D].Nanjing:Southeast University,2005.
[21]  JAYARAMAN H B,KNUDSON W C.A Curved Element for the Analysis of Cable Structures[J].Computers and Structures,1981,14(3/4):325-333.

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