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体外预应力钢-混结合梁桥温度效应分析

Keywords: 桥梁工程,体外预应力结合梁,有限元分析,温度效应,剪力连接件

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Abstract:

针对简支体外预应力钢-混结合梁,考虑钢梁与混凝土之间的相对滑移,温度沿混凝土截面线性分布,体外预应力筋直线布置,剪力钉所受到的剪力和钢梁与混凝土板的相对滑移呈线性关系,推导出结合梁及体外预应力筋由温度效应产生的内力计算公式。通过算例与有限元分析进行对比,并讨论了在日照温度效应下,各种因素对体外预应力钢-混结合梁温度应力的影响。结果表明公式法和有限元法计算结果吻合;日照温度效应使简支结合梁的混凝土板受压,钢梁顶部受拉,底部受压,对体外预应力筋应力影响很小;当剪力钉刚度足够大时,温度应力不随剪力钉刚度变化而变化,剪力钉布置和桥梁跨度对体外预应力钢-混结合梁温度应力的影响不大。

References

[1]  .项海帆.高等桥梁结构理论
[2]  [M].北京:人民交通出版社,2001.XIANG Hai-fan.Advanced Theory of Bridge Structures
[3]  [M].Beijing:China Communications Press,2001.
[4]  TBJ 24-89,铁路结合梁设计规定
[5]  [S].TBJ 24-89,Design Specification for Steel and Concrete Composite Girders in Railway Engineering
[6]  [J].Journal of Changsha Railway Engineering Institute,1997,15(4):88-95.
[7]  KENNEDY J B,MOHAMED H.Temperature Distribution in Composite Bridges
[8]  李世明.结合梁由温差产生的应力
[9]  [J].工业建筑,1994,24(2):47-49.LI Shi-ming.Stresses in Composite Beam Produced by Temperature Difference
[10]  [J].Industrial Construction,1994,24(2):47-49.
[11]  聂建国,沈聚敏.滑移效应对钢-混凝土组合梁弯曲强度的影响及其计算
[12]  [J].土木工程学报,1997,30(1):26-31.NIE Jian-guo,SHEN Ju-min.Slip Effect on Flexural Strength of Steel and Concrete Beams
[13]  [J].China Journal of Civil Engi-neering,1997,30(1):26-31.
[14]  聂建国,沈聚敏,袁彦声.钢-混凝土简支组合梁变形计算的一般公式
[15]  [J].Engineering Mechanics,1994,11(1):21-27.
[16]  刘寒冰,刘文会,张云龙.集中荷载作用下组合梁剪切滑移计算分析
[17]  [J].应用数学和力学,2005,26(6):677-682.LIU Han-bing,LIU Wen-hui,ZHANG Yun-long.Calculation Analysis of Shearing Slip for Steel concrete Composite Beam under Concentrated Load
[18]  WANG Y C.Deflection of Steel concrete Composite Beams with Partial Shear Interaction
[19]  罗如登,叶梅新.组合梁钢与混凝土板相对滑移及受力状态研究
[20]  [J].铁道学报,2002,24(3):57-61.LUO Ru-deng,YE Mei-xin.Study on Steel concrete Slip and Working State of Studs of Composite Beams
[21]  [J].Journal of the China Railway Society,2002,24(3):57-6.
[22]  [S].
[23]  郑学军.钢-混凝土组合结构中的温度效应
[24]  [J].长沙铁道学院学报,1997,15(4):88-95.ZHENG Xue-jun.Temperature Effects on Steel and Concrete Composite Structures
[25]  陈玉骥,叶梅新.钢-混凝土结合梁在温度作用下的响应分析
[26]  [J].中国铁道科学,2001,22(5):48-53.CHEN Yu-ji,YE Mei-xin.Response Analysis of Steel and Concrete Composite Beams under Temperature Effects
[27]  [J].China Railway Science,2001,22(5):48-53.
[28]  陈玉骥,叶梅新.钢-混凝土连续结合梁的温度效应
[29]  [J].中南大学学报(自然科学版),2004,35(1):142-146.CHEN Yu-ji,YE Mei-xin.Temperature Effects on Steel and Concrete Continuous Composite Beams
[30]  [J].Journal of Central South University,2004,35(1):142-146.
[31]  [J].Journal of Structural Engineering,1987,113(3):475-482.
[32]  [J].工程力学,1994,11(1):21-27.NIE Jian-guo,SHEN Ju-min,YUAN Yan-sheng.A General Formula for Predicting the Deflection of Simply Supported Composite Steel concrete Beams with the Consideration of Slip Effect
[33]  [J].Applied Mathematics and Mechanics,2005,26(6):677-682.
[34]  [J].Journal of Structural Engineering,ASCE,1998,124(10):1159-1165.

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