全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

混凝土薄壁箱形结构横向温度应力解析计算方法

, PP. 76-82

Keywords: 桥梁工程,混凝土薄壁箱形结构,结构力学方法,温度应力

Full-Text   Cite this paper   Add to My Lib

Abstract:

?为了改进和提高求解混凝土薄壁箱形结构横向温度应力计算方法的适用范围和精度,运用结构力学的方法将薄壁箱形结构比拟成框架结构,对不同温度模式下箱形结构横向温度应力的计算方法进行推导;按求解无铰拱内力的弹性中心法对力法方程进行简化,导出了求解薄壁箱形横向温度应力的解析计算公式。为验证解析计算法的正确性和精度,分别采用解析计算法和有限元程序对一个典型算例进行了对比分析。结果表明:解析计算法计算得到的横向温度应力结果与有限元分析结果吻合很好,且解析计算法具有较好的精度,适于工程应用;该解析法能够考虑各箱壁厚度不等和温差不同的情况,较既有求解横向温度应力的解析法有较大的改进。

References

[1]  ELBADRY M M,GHALI A.Temperature Variations in Concrete Bridges[J].Journal of the Structural Engineering,1983,109(10):2355-2374.
[2]  YAN Chang-qing,YANG Xian-quan.Analysis of Transverse Temperature Stress of Concrete Thin-wall Box Girder[J].Bridge Construction,2009(3):25-28,43.
[3]  JIE Ming-jun,HUI Zhuo.Analysis of Transverse and Vertical Temperature Stress of Concrete Box Girder[J].East China Highway,2007(6):22-26.
[4]  TB 10002.1—2005,铁路桥涵设计基本规范[S].
[5]  TB 10002.1—2005,Fundamental Code for Design on Railway Bridge and Culverts[S].
[6]  JTG D62—2004,公路钢筋混凝土及预应力混凝土桥涵设计规范[S].
[7]  JTG D62—2004,Code for Design of Highway Re-inforced Concrete and Prestressed Concrete Bridge and Culverts[S].
[8]  谢尚英.广州猎德大桥索塔日照温度效应分析[J].桥梁建设,2007(2):72-75.
[9]  XIE Shang-ying.Analysis of Sunshine Temperature Effect on Tower of Liede Bridge in Guangzhou[J].Bridge Construction,2007(2):72-75.
[10]  PRIESTLEY M J N.Thermal Gradients in Bridges-Some Design Considerations[J].New Zealand En-gineering,1972,27(7):228-233.
[11]  KEHLBECK F.太阳辐射对桥梁结构的影响[M].刘兴法,译.北京:中国铁道出版社,1981.
[12]  KEHLBECK F.Influence of Solar Radiation for Bridge Structure[M].Translated by LIU Xing-fa.Beijing:China Railway Publishing House,1981.
[13]  BRANCO F A.Thermal Effects on Composite Box Girder Bridges During Construction[C]//CSCE.Proceeding of the 2nd International Conference on Short and Medium Span Bridges.Ottawa:Canadian Society for Civil Engineering,1986:215-226.
[14]  颜昌清,阳先全.混凝土薄壁箱梁横向温度应力分析[J].桥梁建设,2009(3):25-28,43.
[15]  颉明军,惠 卓.混凝土箱梁横、竖向温度应力分析[J].华东公路,2007(6):22-26.
[16]  JTG D60—2004,公路桥涵设计通用规范[S].
[17]  JTG D60—2004,General Code for Design of Highway Bridge and Culverts[S].

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133