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...

大跨径拱桥轴线横向偏差对结构的影响

Keywords: 桥梁工程,拱桥,轴线偏差,有限元,力学性能

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过对实际工程中某大跨径钢筋混凝土拱桥施工轴线横向偏差前后的有限元分析,探讨拱轴线施工偏差对主拱内力、抗裂性能、应力、变形及拱肋纵向稳定性等的影响。分析计算表明拱轴线偏移量较小时,偏移对结构内力和稳定性影响较小,但对变形和抗裂性影响较大,各截面应力均有所增大主拱圈偏移后横向位移增长较大,而竖向位移变化较小,另外在拱脚附近抗裂性降低程度较大,部分截面最大裂缝宽度超出规范要求。提出了改善主拱圈受力状态、提高结构承载力及稳定性的一些措施。

References

[1]  刘毓湘,高敬红.基于4次样条函数拱轴线优化设计的T一V求解法[J].公路交通科技,2007, 24 (6): 80一85. LIU Yu-xiang, GAO Jing-hong. Topkis-Veinott Feasible Direction Method for Optimum Axis of Arch Bridge Based on Quartic Spline Function[J].Journal of Highway and Transportation Research and Development, 2007,24 ( 6): 80一85.
[2]  裘伯永.拱轴线最优选择[J].长沙铁道学院学报, 1991,9 (3):140一148. QIU Bo-gong. Arch Axis Shape Optimization [J].Journal of Changsha Railway University, 1991,9 (3): 140一148.
[3]  蒋启平.三次样条插值确定拱桥合理拱曲线的方法探 讨[J].武汉理工大学学报:交通科学与工程版, 2001,25(1):14一17. JIANG Qi一ping. A Study of Method of Determining Rational Arch Axis Using Three Order Splin Interpolation [J].Journal of Wuhan University of Technology: Transportation Science&Engineering Edition, 2001,25 (1):14一17.
[4]  林阳子,黄侨,任远.拱桥拱轴线的优化与选形 [J]. 公路交通科技,2007, 24 (3):59一63. LIN Yang-zi,HUANG Qiao, REN Yuan. Optimization and Selection of Arch Bridge Axis [J].Journal of Highway and Transportation Research and Development, 2007,24(3):59一63.
[5]  刘九生,王国鼎.大跨径拱桥拱轴线允许偏差的探讨 [J].华东公路,2000 (6):17一18. LIU Jiu-sheng, WANG Guo-ding. Investigation on the Allowable Deviation of Arch Axis of Large-span Arch Bridge[J]. East China Highway, 2000 (6):17一18.
[6]  张佳.拱轴线偏差对既有钢筋混凝土拱桥结构行为影 响的研究 [D].成都:西南交通大学,2011: 31一54. ZHANG Jia. Investigation on Impact of Arch Axis Deviation on Structural Behavior of Existing Reinforced Concrete Arch Bridge[D].Chengdu:Southwest Jiaotong University, 2011:31一54.
[7]  杨永清,蒲黔辉,何广汉.抛物线单肋拱横向稳定实 用计算(一)[C]//第八届全国结构工程学术会议论 文集(第Ⅲ卷).北京:中国力学学会工程力学编辑 部,1999: 866一871. YANG Yong-qing, PU Qian-hui, HE Guang-han. Computing of the Laterally Stability of Parabolic Single Rib Arch(1) [C]//Proceedings of the 8th National Symposium on Structural Engineering(Ⅲ).Beijing: Engineering Mechanics Editorial Office of CSTAM,1999:866一871.
[8]  杨永清,蒲黔辉,何广汉.抛物线单肋拱横向稳定实 用计算(二)[C]//第八届全国结构i_程学术会议论 文集(第Ⅲ卷).北京:中国力学学会工程力学编辑 部,1999: 872一879. YANG Yong-qing, PU Qian-hui, HE Guang-han Computing of the Laterally Stability of Parabolic Single Rib Arch(2) [C]//Proceedings of the 8th National Symposium on Structural Engineering(Ⅲ).Beijing: Engineering Mechanics Editorial Office of CSTAM,1999: 872一879.
[9]  杨永清.抛物线双肋拱在保向力作用下的横向稳定性 [J].西南交通大学学报,2003, 38(1):43一48. YANG Yong-qing. Lateral Stability of Parabolic Double-rib Arch under Directional Loads[J].Journal of Southwest Jiaotong University, 2003,38(1):43一48.
[10]  杨永清,蒲黔辉.抛物线双肋拱在非保向力作用下的 横向稳定性 [J].西南交通大学报,2003 , 38 (3 ) : 309一313. YANG Yong-qing, PU Qian-hui. Lateral Stability of Parabolic Double-rib Arch under Non-directional Loads
[11]  [J ] . Journal of Southwest Jiaotong University, 2003,38 (3):309一313.
[12]  刘山洪,李放,袁长红.拱轴线横向偏离对拱圈静力行 为影响[J].重庆交通学院学报,2007,26(1):14一18. LIU Shan-hung, LI Fang, YUAN Chang-hung. Influences of Transverse Bias of Arch Axis on the Arch Ring Behavior under Static Loads[J].Journal of Chongqing Jiaotong University, 2007,26(1):14一18.
[13]  GB 50010-2010 ,混凝土结构设计规范[S]. GB 50010-2010,Code for Design of Concrete Structures [S].
[14]  GB 50204-2002 ,混凝土结构工程施工质量验收规范 [S]. GB 50204-2002,Code for Acceptance of Constructional Quality of Concrete Structures Engineering [S].
[15]  JTG D62-2004,公路钢筋混凝土及预应力混凝土桥 涵设计规范[S]. JTG D62-2004, Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts [S].

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133