Shear Lag Effects of Continuous Corrugated Steel Web-Steel Bottom-Concrete Top Composite Box Girders

MA Chi; LIU Shizhong; LI Aijun; JIN Xuejun

doi:10.21656/1000-0887.400236

Volume 41 Issue 5

Turn off MathJax

Article Contents

Article Navigation > Applied Mathematics and Mechanics > 2020 > 41(5): 517-529

MA Chi, LIU Shizhong, LI Aijun, JIN Xuejun. Shear Lag Effects of Continuous Corrugated Steel Web-Steel Bottom-Concrete Top Composite Box Girders[J]. Applied Mathematics and Mechanics, 2020, 41(5): 517-529. doi: 10.21656/1000-0887.400236

Citation:

PDF( 1914 KB)

Shear Lag Effects of Continuous Corrugated Steel Web-Steel Bottom-Concrete Top Composite Box Girders

doi: 10.21656/1000-0887.400236

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

Funds: The National Natural Science Foundation of China(51868040；51568036)

Received Date: 2019-08-06
Rev Recd Date: 2020-04-06
Publish Date: 2020-05-01

Abstract

Abstract

With different moduli of the concrete top and the steel bottom, the governing differential equations and boundary conditions for shear lag effects of corrugated steel web-steel bottom-concrete top (CSWSBCT) composite box girders were derived with the variational method. The formula for shear lag coefficients of the 2-span continuous CSWSBCT box girder under concentrated load and uniformly distributed load was established. The shear lag effects of the continuous composite box girder under 2 loading conditions were analyzed through model beam tests. The results show that, the theoretical values are in good agreement with the measured values of model tests and the finite element values on the top and bottom plates of the box girder, and the changing trend is consistent, which verifies the correctness of the calculation formula. The maximum shear lag coefficients of the top and bottom plates at the support section under uniform load are larger than those under the concentrated load. The shear lag effects at the junctions of the corrugated steel web, the concrete top and the steel bottom at the middle support section are prominent under 2 loading conditions.
- corrugated steel web,
- composite box girder,
- variational method,
- shear lag effect

FullText(HTML)

References(16)

References

[1]	吴文清. 波形钢腹板组合箱梁剪力滞效应问题研究[D]. 博士学位论文. 南京: 东南大学, 2002.(WU Wenqing. Research on shear-lag effect in combined box-girder with corrugated steel webs[D]. PhD Thesis. Nanjing: Southeast University, 2002.(in Chinese))
[2]	吴文清, 叶见曙, 万水, 等. 波形钢腹板组合箱梁在对称加载作用下剪力滞效应的试验研究[J]. 中国公路学报, 2003,16(2): 48-51.(WU Wenqing, YE Jiashu, WAN Shui, et al. Experimental study of shear-lag effect of composite box girders with corrugated steel webs[J]. China Journal of Highway and Transport,2003,16(2): 48-51.(in Chinese))
[3]	吴文清, 万水, 叶见曙, 等. 波形钢腹板组合箱梁剪力滞效应的空间有限元分析[J]. 土木工程学报, 2004,37(9): 31-36.(WU Wenqing, WAN shui, YE Jianshu, et al. 3-D finite element analysis on shear lag effect in composite box girder with corrugated steel web[J]. China Civil Engineering Journal,2004,37(9): 31-36.(in Chinese))
[4]	李立峰, 彭鲲, 王文, 等. 波形钢腹板组合箱梁剪力滞效应的理论与试验研究[J]. 公路交通科技, 2009,26(4): 78-83.(LI Lifeng, PENG Kun, WANG Wen, et al. Theoretical and experimental study on shear lag effect of composite box girder with corrugated steel webs[J]. Journal of Highway and Transportation Research and Development,2009,26(4): 78-83.(in Chinese))
[5]	冀伟, 蔺鹏臻, 刘世忠, 等. 波形钢腹板箱梁剪力滞效应的变分法求解[J]. 兰州交通大学学报, 2010,29(6): 16-19.(JI Wei, LIN Pengzhen, LIU Shizhong, et al. Variational principle of shear lag effect of composite box girders with corrugated steel webs[J]. Journal of Lanzhou Jiaotong University,2010,29(6): 16-19.(in Chinese))
[6]	冀伟. 波形钢腹板组合箱梁桥的力学性能分析与试验研究[D]. 博士学位论文. 兰州: 兰州交通大学, 2013.(JI Wei. Experimental study and analysis on mechanical performance of the composite box girder bridge with corrugated steel webs[D]. PhD Thesis. Lanzhou: Lanzhou Jiaotong University, 2013.(in Chinese))
[7]	向宇. 比拟杆法分析波形钢腹板箱梁桥剪力滞效应[D]. 硕士学位论文. 长沙: 湖南大学, 2011.(XIANG Yu. The bar simulation method of shear-lag effect in the composite box girder with corrugated steel webs[D]. Master Thesis. Changsha: Hunan University, 2011.(in Chinese))
[8]	周茂定, 刘世忠, 杨子江. 波形钢腹板组合箱梁剪力滞效应的比拟杆法求解[J]. 兰州交通大学学报, 2012,31(4): 41-44.(ZHOU Maoding, LIU Shizhong, YANG Zijiang. Bar simulation method on shear lag effect of composite box girder with corrugated steel web[J]. Journal of Lanzhou Jiaotong University,2012,31(4): 41-44.(in Chinese))
[9]	周勇超, 郝宪武, 李子青. 变截面波形钢腹板组合梁剪力滞效应[J]. 长安大学学报(自然科学版), 2014,34(4): 62-69.(ZHOU Yongchao, HAO Xianwu, LI Ziqing. Shear lag effect of non-uniform composite beam with corrugated steel webs[J]. Journal of Chang’an University(Natural Science Edition),2014,34(4): 62-69.(in Chinese))
[10]	陈水生, 田正龙, 桂水荣, 等. 单箱多室波形钢腹板箱梁剪力滞研究[J]. 公路交通科技, 2015,32(7): 69-75.(CHEN Shuisheng, TIAN Zhenglong, GUI Shuirong , et al. Research on shear lag of single-box multi-cell girder with corrugated steel webs[J]. Journal of Highway and Transportation Research and Development,2015,32(7): 69-75.(in Chinese))
[11]	卫星, 杨世玉. 单箱双室波形钢腹板PC箱梁剪力滞效应分析[J]. 铁道工程学报, 2017,34(3): 29-33.(WEI Xing, YANG Shiyu. Research on the shear lag effect in twin-cell PC box girder with corrugated steel web[J]. Journal of Railway Engineering Society,2017,34(3): 29-33.(in Chinese))
[12]	石聪. 双箱单室波纹钢腹板组合箱梁剪力滞效应分析[D]. 硕士学位论文. 兰州: 兰州交通大学, 2017.(SHI Cong. Research on shear lag effect of single room double box girder with beam bridge with corrugated steel web[D]. Master Thesis. Lanzhou: Lanzhou Jiaotong University, 2017.(in Chinese))
[13]	操俊林. 新型波形钢腹板组合箱梁剪力滞效应的理论分析及试验研究[D]. 硕士学位论文. 兰州: 兰州交通大学, 2018.(CAO Junlin. Theoretical analysis and experimental study on shear lag effect of the new composite box-girder with corrugated steel webs[D]. Master Thesis. Lanzhou: Lanzhou Jiaotong University, 2018.(in Chinese))
[14]	SAMANTA A, MUKHOPADHYAY M. Finite element static and dynamic analyses of folded plates[J]. Engineering Structures,1999,21(3): 277-287.
[15]	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))
[16]	王新敏. ANSYS工程结构数值分析[M]. 北京: 人民交通出版社, 2007.(WANG Xinmin. ANSYS Numerical Analysis of Engineering Structures [M]. Beijing: China Communications Press, 2007.(in Chinese))