摘要
大跨度曲线连续刚构上部结构采用钢箱梁,下部结构采用混凝土墩柱,在恒载、整体温度等作用下结构效应比较复杂。在结构总体分析中,考虑与钢箱梁固结混凝土墩柱的开裂刚度,利用迭代法得到结构的收敛内力,作为计算墩柱截面最终配筋的依据,合理减少截面的配筋量。分析方法简单有效,能为类似结构的分析提供参考实例。
Large-span continuous horizontallycurved rigid frame, which adopts steel box girder for its super-structure and concrete pier column for its sub-structure, bears relatively complicated structural effects under dead loads and global temperature etc. In global analysis of the structure, this paper has considered cracking stiffness of concrete pier columns rigid to steel box girder, and obtained convergent internal forces of the structure by an iterative method, which can be basis for final reinforcing proportion of pier columns and reasonably reduces cross-sectional reinforcement amount. The analysis method proposed in the paper is simple and effective, and can be a referenced example for similar structure analysis.
出处
《中国市政工程》
2015年第5期22-25,96,共4页
China Municipal Engineering
关键词
曲线连续刚构
大跨度
结构效应
墩柱开裂
迭代方法
curve continuous rigid frame
large span
structural effect
pier column cracking
iterative method
