摘要
新寨河特大桥是一座大跨径连续刚构桥,其最大跨径达到230 m。建立了桥梁有限元计算模型,按新、旧《规范》考虑混凝土徐变的方法和不考虑混凝土徐变等3种情况,分析了箱梁悬臂施工过程中的挠度与内力,比较了箱梁施工预拱度。并现场实测了相关数据。
Xinzhaihe Bridge is designed as a long-span continuous rigid-frame bridge with its lon- gest span reaching 230m. This paper builds a calculation model for bridges using finite element method, which can help to analyze the effects of deflection and inner force as the process of the box beam cantilever construction, and also compare the pre-camber as the process of the box beam construction according to three conditions between non-consideration of concrete creep and consideration of concrete creep based on the new and old criteria, Some correlation data are field test.
出处
《公路工程》
2008年第1期32-35,共4页
Highway Engineering
基金
中南林业科技大学人才引进启动项目(06Y027)
关键词
连续刚构桥
混凝土徐变
悬臂施工
预拱度
Continual rigid frame bridge
Concrete creep
Cantilever construction
camber
作者简介
朱宇锋（1981-），男，湖南宁乡人，硕士研究生，主要从事大跨桥梁结构分析和施工监控研究。
