摘要
基于桥上无缝线路计算理论,针对桥上无缝线路断轨机理,考虑断轨时相邻非折断钢轨以及墩顶刚度的影响,推导了桥上无缝线路桥墩断轨附加力的解析计算方法,并与有限元解法进行了对比分析,分析表明理论解析计算方法是正确的,对桥上无缝线路断轨附加力的计算趋于合理,能够指导我国桥上无缝线路的设计。
Based on the calculation theory of the continuous weld rail （CWR） track on bridge, in connection with its breaking mechanism, considering the influence of adjacent non-broken rail and pier stiffness, the analytic calculation meth- od of additional force acting on bridge due to breaking of the CWR is derived and analyzed compared with the finite element solution, it is shown that the theoretical analysis calculatiorl method is correct. And this method makes the calculation of additional force acting on bridge due to breaking of the CWR more reasonable. Moreover, it can guide the design of the CWR track on bridge.
出处
《铁道建筑技术》
2013年第10期74-76,83,共4页
Railway Construction Technology
关键词
桥上无缝线路
梁轨相互作用
断轨力
理论计算
CWR on bridge
interaction between beam and rail
rail breaking force
theoretical calculation
