摘要
针对无砟轨道高速铁路对桥梁顶面高程和平整度要求较高的特点,提出了无砟轨道桥梁顶面线形控制方法和混凝土即将浇筑完的梁面标高计算公式.以京津城际北京环线特大桥跨四环桥为工程背景,结合应用灰色理论和自适应控制方法对该桥的挠度和预拱度进行预测,线形控制结果表明:这两种控制方法及本文提出的梁顶面线形控制的方法适用于悬臂施工无砟轨道高速铁路桥梁的施工监控.
The bridges on high speed railway which adopted ballastless tracks has strict demand on the elevation and smoothness of the beam＇s top surface.So,the linear monitoring method for the beam＇s top surface elevation of bridges on the ballastless track high speed railway was introduced,and the formula of the beam＇s top surface elevation after concreting was put forward.The grey system and self-adaptive control method were both applied to the linear monitoring of Beijing 4th ring road bridge at Beijing-Tianjin express passenger line,and the vertical deflection and precamber were forecasted for this bridge.The linear results indicate that this two construction control methods and the beam＇s top surface elevation control methods are suit for the construction control of the bridges on ballastless track high speed railway.
出处
《兰州交通大学学报》
CAS
2010年第3期12-16,共5页
Journal of Lanzhou Jiaotong University
基金
京津城际铁路重大科技项目(2005G015-D)
关键词
无砟轨道
高速铁路桥梁
灰色理论
自适应控制方法
ballastless track
bridge on high speed railway
grey system theory
self-adaptive control method
作者简介
王常峰（1977-），男，山东成武人，讲师，博士生。
