波形钢腹板箱梁的腹板受力性能及桥面板横向内力分析  

Analysis on mechanical property of web and transverse internal force in bridge deck of box girder with corrugated steel webs

作　　者：赵品 荣学亮 叶见曙[2] 陈伟 王国安 ZHAO Pin;RONG Xueliang;YE Jianshu;CHEN Wei;WANG Guoan(School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang,Hebei 050043,China;School of Transportation,Southeast University,Nanjing,Jiangsu 210096,China)

机构地区：[1]石家庄铁道大学土木工程学院,河北石家庄050043 [2]东南大学交通学院,江苏南京210096

出　　处：《江苏大学学报（自然科学版）》2021年第3期367-372,共6页Journal of Jiangsu University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51508348);河北省自然科学基金资助项目(E2017210191,E2017210183);河北省教育厅项目(QN2015134);河北省科技厅项目(20547601D)。

摘　　要：通过对一片波形钢腹板单箱双室试验梁的弹性阶段试验,对沿桥面板横向不同位置荷载作用下的腹板竖向变形、纵向变形及桥面板横向应变进行了观测.分析了该组合梁的腹板受力性能及腹板支撑下的桥面板横向受力特征,得到了边腹板和中腹板的变形特征及腹板与顶板线刚度比对桥面板横向受力的影响.结果表明:不同横向位置荷载作用下,波形钢腹板单箱双室箱梁的中腹板与边腹板在变形及对桥面板的支撑上存在一定差异,即中腹板的纵向应变、竖向应变在荷载作用下的变化趋势不同于边腹板;波形钢腹板箱梁的桥面板横向应力随着腹板与顶板线刚度比的变化基本呈线性变化.Through the elastic test of one single-box with double-cell test girder for a corrugated steel webs,the vertical deformation and longitudinal deformation of the webs and the transverse strain of the upper flange were tested when the loads were distributed in different transverse locations of the upper flange.The force performance of the web and the transverse force characteristics of the upper flange supported by the web of composite beam were analyzed.The deformation characteristics of side web and middle web were achieved,and the influence of the ratio of web to upper flange line stiffness on the transverse force of upper flange was also obtained.The results show that there are certain differences among the deformations of the middle web,the side web and the support to the upper flange.The change trends of longitudinal strain and vertical strain of the middle web under load are different from that of the side web.The transverse stress of the upper flange of the corrugated steel web box girder is linearly changed with the ratio of web to upper flange stiffness.

关 键 词：组合梁 波形钢腹板 桥面板 横向内力 线刚度比 

分 类 号：U448.36[建筑科学—桥梁与隧道工程]