| 基于组合截面内力分配的拱桥加固内力计算方法 |
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| 作者单位： | 广西大学土木建筑学院，重庆交通大学土木建筑学院，重庆市巴南区交通局，重庆交通大学土木建筑学院 广西南宁530004，重庆交通大学土木建筑学院，重庆400074，重庆400074，重庆401320，重庆400074 |
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| 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。
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| 关 键 词： | 拱桥加固 组合截面 内力分配 计算方法 |
Study on Internal Force Distribution Method of Co-Section for Arch Bridges Strengthening |
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| Authors: | HUANG Hai-dong XIANG Zhong-fu LIU Jian-feng LIN Xiao-feng |
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| Institution: | HUANG Hai-dong1,2,XIANG Zhong-fu2,LIU Jian-feng3,LIN Xiao-feng2 |
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| Abstract: | 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. |
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| Keywords: | arch bridges strengthening co-section internal force distribution calculating method |
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