摘要
将装配式混凝土铰接板桥比拟成横向抗弯和抗扭刚度为零的正交异性板,得到铰接板挠曲面微分方程,推导出对边简支铰接矩形板挠度与横向剪力的解析解,并分析剪力分布规律以及剪力峰值受铰接板桥特性的影响因素.结果表明,铰缝剪力属于车辆轮载作用下的局部受力问题,其峰值主要与板的截面特性及跨径有关.得到了JTG D60-2004车辆荷载作用下混凝土铰接板桥铰缝剪力最大值的曲线图.
The articulated plate bridge was likened to orthotropic plate in which both transverse flexural rigidity and transverse torsional rigidity approaches were set to be equal to zero. Then the articulated plate differential equations for the articulated plate were obtained,and the classical deflection and transverse shear solutions of the articulated rectangular plate with two opposite edges simply supported were derived. An analysis on the shear distribution rules and the articulated plate bridge factors indicates that the shear of the articulated plate bridge shear key is related to the local forces under the vehicle load action,and its peak is dependent on the characteristic parameters of the plate section and the span of the bridge.The chart of the maximum value of transverse shear intensities is provided in accordance with the JTG D60-2004 vehicle load.
出处
《深圳大学学报（理工版）》
EI
CAS
北大核心
2011年第1期60-64,共5页
Journal of Shenzhen University(Science and Engineering)
基金
西部交通建设科技资助项目(200731822379)
江苏省交通科学研究计划资助项目(08Y52)~~
关键词
桥梁工程
铰接板
正交异性板
铰缝
横向剪力
车辆荷载
bridge engineering
articulated plate
orthotropic plate
shear key
transverse shear
vehicle load
