马天;胡可;李润清;姚春江;陈发根;陈维平;宋超杰;杨晓明;程华才;

• 1:安徽省交通控股集团有限公司
• 2:长安大学公路学院
• 3:安徽省高速公路试验检测科研中心有限公司

摘要(Abstract)：

双肋钢板组合桥梁(双钢板主梁与砼桥面板通过剪力钉连接)由于主梁间距大而存在明显的剪力滞效应。文中选取三跨双肋钢板组合连续桥梁(3×35 m)作为研究对象,采用ANSYS建立其有限元模型,分别对给定温度环境下受恒载和车道荷载作用的桥面板应力进行分析,计算其剪力滞系数。按最大正应力和合力大小不变的原则,将呈曲线分布的正截面应力简化成矩形分布,计算桥面板的有效宽度,并与规范计算结果进行对比。研究结果表明:在恒载和车道荷载作用下,中支点处存在显著的正剪力滞效应,剪力滞系数可达到1. 7左右。在中跨和边跨其余各截面均存在负剪力滞效应。从边支点截面到中支点截面由负剪力滞效应逐步向正剪力滞效应过渡,从中支点截面到中跨跨中截面则由正剪力滞效应逐步向负剪力滞效应过渡。与有限元方法相比,按照规范方法计算的边跨跨中和中跨跨中截面的桥面板有效宽度偏于保守,中支点截面按规范方法计算的有效宽度偏于不安全。

关键词(KeyWords)： 双肋钢板组合连续桥梁;有限元分析;剪力滞效应;有效宽度

Abstract:

Keywords:

基金项目(Foundation): 安徽省交通控股集团有限公司科技项目(JKKJ-2018-14)

作者(Author): 马天;胡可;李润清;姚春江;陈发根;陈维平;宋超杰;杨晓明;程华才;

Email:

DOI: 10.13800/j.cnki.xakjdxxb.2020.0117

参考文献(References)：

• [1]马庆华，马慧娟，方金强．公路桥梁箱梁悬臂施工中的预应力作用及剪力滞效应研究[J]．公路工程，2017,42(5):211-216.MA Qing-hua,MA Hui-juan,FANG Jin-qiang. Study on prestressing effect and shear lag effect in cantilever construction of box girder of highway bridge[J]. Highway Engineering,2017,42(5):211-216.
• [2]张军锋，朱冰，李杰，等．计算模型对简支箱梁和T梁剪力滞结果影响[J]．重庆交通大学学报(自然科学版)，2019,38(2):7-12.ZHANG Jun-feng,ZHU Bing,LI Jie,et al. Influence of calculation model on shear lag results of simple-supported box and T beam[J]. Journal of Chongqing Jiaotong University(Natural Science),2019,38(2):7-12.
• [3]张玉元，张慧，李巍，等．基于选取不同剪力滞广义位移的薄壁箱梁剪力滞效应研究[J]．铁道科学与工程学报，2016,13(6):1083-1089.ZHANG Yu-yuan,ZHANG Hui,LI Wei,et al. Analysis on shear-lag effect of box girders based on different shear-lag generalized displacement[J]. Journal of Railway Science and Engineering,2016,13(6):1083-1089.
• [4]张玉元，张慧，张元海，等．荷载横向变位下的单箱双室剪力滞效应研究[J]．铁道科学与工程学报，2016,13(7):1309-1315.ZHANG Yu-yuan,ZHANG Hui,ZHANG Yuan-hai,et al. Research on shear lag effect of twin-cell box girders with varying loading locations[J]. Journal of Railway Science and Engineering,2016,13(7):1309-1315.
• [5] Zhou G,Li A,Li J,et al. Beam finite element including shear lag effect of extra-wide concrete box girders[J].Journal of Bridge Engineering,2018,23(11):04018083.
• [6] Xiang Y,He X. Short and long-term analyses of shear lag in RC box girders considering axial equilibrium[J].Structural Engineering and Mechanics,2017,62(6):725-737.
• [7] Luo M,Lin P Z,Sun L X. Analysis of shear lag effect in twin-cell box girders[J]. Mechanics in Engineering,2013,35(6):70-74.
• [8]郭秉山，何玮，闫月梅．薄壁钢箱梁考虑加劲肋构造剪力滞效应的计算[J]．西安科技大学学报，2012,32(5):617-620.GUO Bing-shan,HE Wei,YAN Yue-mei. Calculation of shear lag effect on thin-walled box girder by considering arrangement of stiffening rib[J]. Journal of Xi’an University of Science and Technology,2012,32(5):617-620.
• [9]赵煜，刘波．大曲率连续钢箱梁桥剪力滞试验与分析[J]．西安科技大学报，2006,26(3):311-316.ZHAO Yu,LIU Bo. Test and analysis of shear lag for continuous steel bridge with large curvature[J]. Journal of Xi’an University of Science and Technology,2006,26(3):311-316.
• [10]朱世峰，舒志云，李成君．波形钢腹板PC组合箱梁剪力滞效应影响因素分析[J]．公路工程，2014,39(3):267-270.ZHU Shi-feng,SHU Zhi-yun,LI Cheng-jun. Impact factor research on shear lag effect of PC composite boxgirders with corrugated steel webs[J]. Highway Engineering,2014,39(3):267-270.
• [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，2017,222(3):29-33.WEI Xing,YANG Shi-yu. Research on the shear-lag effect in twin-cell PC box-girder with corrugated steel web[J]. Journal of Railway Engineering Society,2017,222(3):29-33.
• [12]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(3):62-68.ZHOU Yong-chao,HAO Xian-wu,LI Zi-qing. Shear lag effect of non-uniform composite beam with corrugated steel web[J]. Journal of Chang’an University(Nature Science Edition),2014,34(3):62-68.
• [13]马驰，刘世忠，冯明扬．波形钢腹板PC组合箱梁剪力滞效应的变分解法[J]．兰州交通大学学报，2018,37(4):12-18.MA Chi,LIU Shi-zhong,FENG Ming-yang. Variation method for shear lag effect of PC composite box girder with corrugated steel webs[J]. Journal of Lanzhou Jiaotong University,2018,34(11):22-32.
• [14] Chen Y,Dong J,Xu T,et al. The shear-lag effect of composite box girder bridges with corrugated steel webs and trusses[J]. Engineering Structures,2019,181:617-628.
• [15]邹建波，赵人达．支承形式对波形钢腹板预应力混凝土曲线箱梁剪力滞效应的影响[J]．铁道建筑，2018,58(8):7-9.ZOU Jian-bo,ZHAO Ren-da. Influence of support manners on shear lag effect of PC curved box girder with corrugated steel webs[J]. Railway Engineering,2018,58(8):7-9.
• [16]尼颖升，马晔，徐栋，等．波纹钢腹板斜拉桥剪力滞效应空间网格分析方法[J]．吉林大学学报(工学版)，2017,47(5):1453-1464.NI Ying-sheng,MA Ye,XU Dong,et al. Space mesh analysis method for shear lag effect of cable-stayed bridge with corrugated steel webs[J]. Journal of Jilin University(Engineering and Technology Edition),2017,47(5):1453-1464.
• [17]孙林林，蒋丽忠，周旺保．钢-混凝土组合箱梁剪力滞系数实用计算方法[J]．铁道科学与工程学报，2017,14(6):1287-1293.SUN Lin-lin,JIANG Li-zhong,ZHOU Wang-bao. Practical calculation method of shear lag coefficient of steelconcrete composite box beam[J]. Journal of Railway Science and Engineering,2017,14(6):1287-1293.
• [18]刘寒冰，刘文会，张云龙．用变分法分析预应力钢-混凝土组合T梁的剪力滞效应[J]．公路交通科技，2004,21(5):65-67.LIU Han-bing,LIU Wen-hui,ZHANG Yun-long. Analysis of shearing force’s lag effect of prestressed steelconcrete composite T beam by variational method[J].Journal of Highway and Transportation Research and Development,2004,21(5):65-67.
• [19]张玥，郭劲岑．车辆荷载作用下钢板组合连续梁桥桥面板应力分析[J]．应用力学学报，2019,36(3):741-746.ZHANG Yue,GUO Jin-cen. Stress analysis of steel plate composite continuous girder bridge deck under vehicle load[J]. Chinese Journal of Applied Mechanics,2019,36(3):741-746.
• [20]鲁国昌．建筑结构构件与结构体系中的剪力滞后效应分析[J]．建筑科学，2018,34(11):22-32.LU Guo-chang. Analysis of shear lag effect in structural components and structural system[J]. Building Science,2018,34(11):22-32.
• [21] Yan W T,Han B,Zhu L,et al. A fiber beam element model for elastic-plastic analysis of girders with shear lag effects[J]. Steel and Composite Structures,2019,32(5):657-670.
• [22] Lezgy-Nazargah M,Vival P,Polit O. A sinus shear deformation model for static analysis of composite steelconcrete beams and twin-girder decks including shear lag and interfacial slip effects[J]. Thin-Walled Structures,2019,134:61-70.