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...

组合梁斜拉桥有效宽度系数及实用计算方法

, PP. 51-58

Keywords: 桥梁工程,组合梁斜拉桥,剪力滞效应,有效宽度系数,轴力扩散角,实用计算方法

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了掌握组合斜拉桥主梁混凝土桥面板在轴向力和弯矩共同作用下有效宽度系数沿跨长方向的分布规律,进行了空间有限元计算,提出了斜拉索水平轴向力作用下混凝土桥面板有效宽度系数沿跨长方向分布曲线计算公式。同时,通过理论分析得出了弯矩作用下混凝土桥面板有效宽度系数计算方法。研究结果表明斜拉索水平轴向力在混凝土桥面板中的传递角度可取28°;综合考虑轴力和弯矩复合作用的有效宽度系数实用计算方法,能够准确反映组合斜拉桥混凝土板的应力状态,对保证结构安全、改进设计方法具有重要参考价值。

References

[1]  严国敏.现代斜拉桥[M].成都:西南交通大学出版社,1995. YAN Guo-ming.Modern cable-stayed bridge[M].Chengdu:Southwest Jiaotong University Press,1995.
[2]  高宗余,张 强,王应良.组合结构主梁斜拉桥设计进展[J].铁道勘察,2007(增):50-53. GAO Zong-yu,ZHANG Qiang,WANG Ying-liang.Evolution of design on hybrid beam cable-stayed bridge with combined structure[J].Railway Investigation and Surveying,2007(S):50-53.(in Chinese)
[3]  周绪红,狄 谨,戴公连.大跨径预应力混凝土斜拉桥主梁节段模型的研究[J].土木工程学报,2005,38(3):59-63. ZHOU Xu-hong,DI Jin,DAI Gong-lian.Study on segmental mode of long span prestressed concrete cable-stayed bridge [J].China Civil Engineering Journal,2005,38(3):59-63.(in Chinese)
[4]  聂建国,李法雄,樊健生.组合斜拉桥桥面有效宽度分析[J].哈尔滨工业大学学报,2007,39(增2):719-724. NIE Jian-guo,LI Fa-xiong,FAN Jian-sheng.Study on effective width of concrete deck in composite cable-stayed bridge[J].Journal of Harbin Institute of Technology,2007,39(S2):719-724.(in Chinese)
[5]  AASHTO,LRFD bridge design specifica-tions[S].
[6]  DEUTSCHE NORM,German DIN 1075[S].
[7]  BS-5400,BS 5400 steel concrete and composite bridges [S].
[8]  Eurocode 4,Design of composite steel and concrete structures [S].
[9]  Amjad J A,Methee C,Stuart S C.Effective slab width definition for negative moment regions of composite bridges[J].Journal of Bridge Engineering,2007,12(3):339-349.
[10]  JTJ 025-86,公路桥涵钢结构及木结构设计规范[S]. JTJ 025-86,Steel and timber structure design code of highway bridge[S].(in Chinese)
[11]  李运生,王元清,石永久,等.组合梁桥有效翼缘宽度国内外规范的比较分析[J].铁道科学与工程学报,2006,3(2):34-38. LI Yun-sheng,WANG Yuan-qing,SHI Yong-jiu,et al.A comparative analysis of effective flange width in composite bridges between domestic and foreign specifications[J].Journal of Railway Science and Engineering,2006,3(2):34-38.(in Chinese)
[12]  Byers D D.Evaluation of the effective slab width for composite cable-stayed bridge design[D].Lawrence:University of Kansas,1999.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133