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...

大跨度钢管混凝土拱桥施工阶段稳定性分析

, PP. 340-343

Keywords: 钢管混凝土拱桥,施工阶段,稳定性,本构关系,屈曲,非线性失稳,CFSTarchbridge,conshuctionstage,stability,constitutiverelationship,buckling,nonlinearinstability

Full-Text   Cite this paper   Add to My Lib

Abstract:

:?以新龙门大桥为工程依托,考虑钢管和混凝土的三向受力本构关系,利用ANSYS建立了空间有限元模型,从特征值屈曲、几何非线性失稳、几何材料双重非线性失稳3个方面分析了该桥整个施工阶段的稳定问题。结果表明:钢管混凝土拱桥在整个施工过程中受稳定性影响较大,稳定系数有不断下降的趋势,考虑双重非线性的稳定系数与特征值屈曲分析相比差别较大,最大可达30%。

References

[1]  张建民,郑皆连,秦荣.南宁永和大桥双重非线性稳定分析[J].公路交通科技,2002,19(3):58-62.
[2]  崔军,王景波,孙炳楠.大跨度钢管混凝土拱桥非线性稳定分析[J].哈尔滨工业大学学报,2003,35(7):876-878.
[3]  Wang J,Zhang M Zh,Guo X L.Nonlinear stability analysis onthe concrete casting step of long-span concrete-filled steel tubearch bridge[J].Materials Science Forum,2009,6(14):275-282.
[4]  Xie X,Chen HZh,Song Sh R,et al.Numerical analysis of ulti-mate strength of concrete filled steel tubular arch bridges[J].Journal of Zhejiang University Science,2005,6(8):859-868.
[5]  李国豪.桥梁结构稳定与振动[M].北京:中国铁道出版社,1996.
[6]  钟善桐.钢管混凝土结构[M].北京:清华大学出版社,2003.
[7]  Spaconc A M E,Ei-tawil S.Nonlinear analysis of steal-concretecomposite structures:State of the art[J].Journal of Structure En-gineering,2004,130(2):159-168.
[8]  Zhang Zh Ch,Xie X,Zhang H,et al.Approach for analyzing theultimate strength of concrete filled steel tubular arch bridges withstiffening girder[J].Journal of Zhejiang University Science,2007,8(5):682-692.
[9]  Zhao HQ,Xu L,Yang HL,et al.Stability analysis of long-spandeck-type CFSTarch bridges[J].Journal of Highway and Trans-portation Research and Development,2007,2(1):62-65.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133