论文部分内容阅读
针对目前如火如荼的城市轨道交通,由于城市静音的要求,目前的无缝长轨条越来越长,甚至达到数百千米,而且多架设于高架桥上。以线-桥-墩-基础一体化模型为主的城市轨道交通高架桥上无缝线路,各部分相互制约关系较强,各个部件和各种内力相互作用,相互影响。实验数据表明,针对常见的简支型桥梁无缝线路,列车在桥两端制动时,梁轨相对位移达到极值;而墩台力极值将会在列车于桥中间位置段制动时出现。
For the current urban rail transit in full swing, due to the requirements of the city mute, the current seamless long rails longer and longer, or even up to hundreds of kilometers, and more than set on the viaduct. The seamless track on urban rail viaduct, which is based on the line-bridge-pier-foundation integrated model, has a strong mutual restraint relationship with each other and various components and various internal forces interact with each other. The experimental data show that for the common simple-supported bridge seamless track, the relative displacement of the beam and rail reaches the extreme when the train brakes at both ends of the bridge; and the extreme value of abutment force will brake the train in the middle position of the bridge Appears.