波形钢腹板箱梁畸变应力分析

邵江艳; 张元海; 赵庆友; 姚晓东

doi:10.21656/1000-0887.390260

波形钢腹板箱梁畸变应力分析

doi: 10.21656/1000-0887.390260

兰州交通大学土木工程学院, 兰州 730070

基金项目: 国家自然科学基金(51468032)

详细信息

作者简介:
邵江艳(1994—)，女，硕士生(E-mail: 2373842236@qq.com);张元海(1965—)，男，教授，博士，博士生导师(通讯作者. E-mail: zyh17012@163.com).

中图分类号: O39
计量
- 文章访问数: 1156
- HTML全文浏览量: 192
- PDF下载量: 333
- 被引次数: 0
出版历程
- 收稿日期: 2018-10-08
- 修回日期: 2019-01-20
- 刊出日期: 2019-10-01

Stress Analysis on Distortion of Corrugated Steel Web Box Girders

School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, P.R.China

Funds: The National Natural Science Foundation of China(51468032)

摘要

摘要: 在对梯形截面箱梁的畸变角给出一般定义的基础上，根据传统混凝土箱形梁的理论及波形钢腹板的力学特性，对波形钢腹板组合箱梁的畸变翘曲应力进行推导，应用基于势能驻值原理的能量变分法，建立了以所定义的畸变角为未知量的控制微分方程，并给出其初参数解.采用初参数法求出波形钢腹板组合箱梁的畸变角和畸变双力矩，最终得到纵向畸变翘曲应力.通过算例对比分析了传统混凝土箱梁和波形钢腹板组合箱梁顶板与腹板及底板与腹板交点处的畸变翘曲应力，分析结果表明：由于波形钢腹板组合箱梁腹板的纵向刚度很小几乎为零，所以在波形钢腹板组合箱梁底板与腹板交点处产生的翘曲应力大于混凝土箱梁底板与腹板交点处的对应值.
- 波形钢腹板 /
- 箱梁 /
- 能量法 /
- 初参数法 /
- 畸变
Abstract: Based on the definition of the distortion angle presented for trapezoidal-section box girders, according to the theories for the traditional concrete box girder and the mechanical properties of the corrugated steel web, the distortion warping stresses of the corrugated steel web composite box girder were deduced. The governing differential equations for the distortion angle were established with the energy variation calculus method based on the principle of stationary potential energy, and the initial parameter solutions to the equations were achieved. With the initial parameter method the distortion angle and the distortion double moment of the corrugated steel web composite box girder were obtained. Finally, the longitudinal distortion warping stresses were got. Contrastive analysis of the distortion warping stresses were done between the traditional concrete box girder and the corrugated steel web composite box girder. The analysis results show that, due to the negligible longitudinal stiffness of the corrugated steel web, the warping stress at the web-bottom intersection of the corrugated steel web composite box girder is much larger than that of the concrete box girder.
- corrugated steel web /
- box girder /
- energy method /
- initial parameter method /
- distortion

HTML全文

参考文献(16)

[1]	徐强, 万水. 波形钢腹板PC组合箱梁桥设计与应用[M]. 北京: 人民交通出版社, 2009.(XU Qiang, WAN Shui. Design and Application of PC Composite Box Girder Bridge With Corrugated Steel Webs [M]. Beijing: China Communications Press, 2009.(in Chinese))
[2]	SAYED-AHMED E Y. Behaviour of steel and (or) composite girders with corrugated steel webs[J]. Canadian Journal of Civil Engineering,2001,28(4): 656-672.
[3]	郭金琼, 房贞政, 郑振. 箱形梁设计理论[M]. 北京: 人民交通出版社, 2008.(GUO Jinqiong, FANG Zhenzheng, ZHENG Zhen. Design Theory of Box Girder [M]. Beijing: China Communications Press, 2008.(in Chinese))
[4]	李宏江. 波形钢腹板箱梁扭转与畸变的实验研究及分析[D]. 博士学位论文. 南京: 东南大学, 2003.(LI Hongjiang. Experimental study and analysis of torsion and distortion of corrugated steel web box girder[D]. PhD Thesis. Nanjing: Southeast University, 2003.(in Chinese))
[5]	项海帆. 高等桥梁结构理论[M]. 北京: 人民交通出版社, 2001.(XIANG Haifan. Theory of Advanced Bridge Structure[M]. Beijing: China Communications Press, 2001.(in Chinese))
[6]	杨丙文, 黎雅乐, 万水, 等. 波形钢腹板箱梁畸变应力分析[J]. 东南大学学报(自然科学版), 2011,41(5): 1065-1069.(YANG Bingwen, LI Yale, WAN Shui, et al. Stress analysis of box girders with corrugate steel webs under distorsion[J]. Journal of Southeast University(Natural Science),2011,41(5): 1065-1069.(in Chinese))
[7]	王文. 波形钢腹板箱梁扭转效应和畸变效应的分析与模型试验研究[D]. 硕士学位论文. 长沙: 湖南大学, 2008.(WANG Wen. Analysis and model test study on torsional effect and distortion effect of corrugated steel web box girder[D]. Master Thesis. Changsha: Hunan University, 2008.(in Chinese))
[8]	李时, 郭彦林. 波折腹板梁抗剪性能研究[J]. 建筑结构学报, 2001,22(6): 49-54.(LI Shi, GUO Yanlin. Study on shearing resistance of beams with trapezoidally corrugated webs[J]. Journal of Building Structures,2001,22(6): 49-54.(in Chinese))
[9]	李宏江. 波形钢腹板预应力混凝土组合箱梁扭转与畸变研究进展[J]. 建筑结构学报, 2017,38(7): 59-67.(LI Hongjiang. Research progress on torsion and distortion of prestressed concrete composite box girder with corrugated steel webs[J]. Journal of Building Structures,2017,38(7): 59-67.(in Chinese))
[10]	ELGAALY M, SESHADRI A, HAMILTON R W. Bending strength of steel beams with corrugated webs[J]. Journal of structural engineering,1997,123(6): 772-782.
[11]	ELGAALY M, SESHADRI A. Girder with corrugated webs under partial compressive edge loading[J]. Journal of structural engineering,1997,123(6): 783-791.
[12]	刘保东, 陈海波, 任红伟. 波纹钢腹板混凝土箱梁动力特性改善研究[J]. 中国铁道科学, 2008,29(3): 29-33.(LIU Baodong, CHEN Haibo, REN Hongwei. Improvement study of the dynamic characteristics for concrete box-girder with corrugated steel webs[J]. China Railway Science,2008,29(3): 29-33.(in Chinese))
[13]	徐君兰, 顾安邦. 波形钢腹板组合箱梁桥的结构与受力分析[J]. 重庆交通学院学报, 2005,24(2): 1-4, 34.(XU Junlan, GU Anbang. Analysis on structure and force principle of composite box-grider bridge with corrugated steel webs[J]. Journal of Chongqing Jiaotong University,2005,24(2): 1-4, 34.(in Chinese))
[14]	孙训方, 方孝淑, 关来泰. 材料力学[M]. 北京: 高等教育出版社, 2009.(SUN Xunfang, FANG Xiaoshu, GUAN Laitai. Mechanics of Materials [M]. Beijing: Higher Education Press, 2009.(in Chinese))
[15]	徐芝纶. 弹性力学[M]. 北京: 高等教育出版社, 2006.(XU Zhilun. Elasticity [M]. Beijing: Higher Education Press, 2006.(in Chinese))
[16]	¹