摘要
刚构桥主梁高跨比的合理选取,是此类桥梁设计的重点。本文通过对大跨径的连续刚构桥(主跨为220m)主梁的高跨比值进行调整,运用MIDAS/CIVIL软件对整桥进行建模和结构分析,最后得出不同高跨比值下结构的内力分布。经过比较分析,得出主梁高跨比的合理选取范围及建议,对连续刚构桥梁主梁设计参数的合理选取具有实际指导意义。
Reasonable selection of Continuous rigid flame bridges＇ high-to-span ratio is important. By adjusting the high-to-span; ratio of long-span continuous rigid flame bridge with main span of 220m, and using the MIDAS/CIVIL software for modeling and structural analysis, the internal force distribution under different depth-to-span ratios was obtained. After comparative analysis, this paper suggested the scope of reasonable selection about depth-to-span ratio and spans, which can provide guidance for reasonable selection of design parameters of continuous rigid flame bridge.
出处
《重庆建筑》
2008年第6期24-27,共4页
Chongqing Architecture
关键词
连续刚构桥
主梁
高跨比
Continuous rigid frame bridge
main girder
depth-to-span ratio
