圆环桥塔细部分析  

Detail Analysis of Ring Bridge Pylon

作　　者：孙书亭[1] 刘斌[1] 

机构地区：[1]中国市政工程华北设计研究总院,天津市300074

出　　处：《城市道桥与防洪》2014年第6期113-116,12,共4页Urban Roads Bridges & Flood Control

摘　　要：圆环塔塔身与塔脚相接处截面变化较大,为验证此处构造措施合理性及整体计算的准确性,采用了板单元建立了局部分析模型,并通过恒载作用下的杆系单元与板单元模型下的同一位置的正应力、范梅塞斯应力值的对比,分析钢箱截面的其应力分布规律,验证了杆系单元整体模型分析结果的正确性与安全性。The section at the connection of ring bridge pylon body and pylon foot is greatly variable. In order to validate the rationality of construction measures there and the accuracy of overall calculation, the plate unit is used to set up the local analysis model. According to the comparison of the normal stress and von Mises stress values of the element unit under the constant load and of the same position under the plate unit model,the article analyzes the stress distribution law of steel box section, and validates the accuracy and safety of analysis result by element unit model.

关 键 词：细部分析 板单元 应力 

分 类 号：U443[建筑科学—桥梁与隧道工程]