摘要
增大截面法是加固拱式桥的常用方法,加固后的新、老拱圈截面在受力性能上属于"二次受力叠合结构",从平截面假定出发,推导了组合截面内力分配公式,并将此方法应用于某桥加固内力计算中,对于同类型桥梁的加固设计计算具有一定的参考价值。
It＇s common to strengthen arch bridges by enlarging section, and the combined section belongs to the ＂Two-Stage Loading Composite Structure＂ in mechanics of characteristics. The internal force distribution method of co-section is ratiocinated on the base of assumption of the plane section, and is used in the design of arch bridges strengthening. It can be reference for the same kind of bridges in calculation and strengthening design.
出处
《重庆交通大学学报（自然科学版）》
CAS
2008年第2期200-203,247,共5页
Journal of Chongqing Jiaotong University(Natural Science)
关键词
拱桥加固
组合截面
内力分配
计算方法
arch bridges strengthening
co-section
internal force distribution
calculating method
