摘要
悬臂施工的大跨度桥梁预拱度的设置直接影响到桥梁是否正常合龙与成桥线形美观。根据悬臂施工的特点,把预拱度分施工预拱度和使用预拱度,提出了按正弦曲线分配考虑使用预拱度的方法,并将该方法应用到沙湾特大矮塔斜拉桥,为同类桥梁的施工提供一定的参考。
The pre-camber of large span bridge of cantilever construction are directly affect the normal fold and the beautiful linear of the bridge. According to the characteristics of the cantilever construction, the pre-camber is divided into construction pre-camber and using pre-camber, and is put forward to a new method of setting precamber which method distribute the pre-camber by sine curve.
出处
《科学技术与工程》
2009年第13期3909-3911,3915,共4页
Science Technology and Engineering
关键词
预拱度
悬臂施工
有限元
正弦曲线
矮塔斜拉桥
pre-camber
cantilever construction
finite element
sine curve
extradosed cablestayed bridge
