摘要
文章针对叙大铁路三槽湾特大桥主桥(68+128+68)的预应力混凝土连续刚构,介绍了墩高超百米的高低墩刚构桥设计,分析计算了高低墩大跨连续刚构桥的静力特性和主桥车桥动力响应,对解决高低墩大跨连续刚构桥设计时刚度差的问题,以及梁部应力对高低墩的应力分配问题作了合理的实践,对山区铁路高桥设计具有较高的参考价值。
Based on the prestressed concrete continuous rigid-frame of the main bridge（68＋128＋68）of Sancao Bay super large bridge over the Xuda railway,the author introduces the design of steel bridge with low piers a hundred plus meters high and analyzes the static characteristics of such kind of bridge and dynamic response of main bridge.These can provide valuable references to solve the problem of stiffness difference in designing continuous rigid-frame bridges with low piers high and reasonably practice the beam stress that distributes the stress of low piers of a hundred plus meters high.
出处
《重庆建筑》
2012年第5期24-25,共2页
Chongqing Architecture
关键词
铁路
高低主墩
高墩大跨
连续刚构
结构计算和动力仿真分析
railway
high low piers
high piers of large span
continuous rigid-frame
structure calculation and dynamic simulation analysis
