摘要
本文以连续刚构桥为基础,建立该桥的模型主要分析了关于主梁自重以及地基的不均匀沉降对桥梁挠度的影响以及变化的规律。其中结果表明:混凝土的自重按1%的重量增加时,最大的下挠度也只是按照0.4mm左右的下挠;只有一侧桥墩沉降时,最大的下挠度即为桥墩的沉降量,其他位置都是被迫形成的挠度;1、2号桥墩同时沉降的时候的挠度是1号桥墩沉降时候的挠度的1.94倍。
Based on the continuous rigid frame bridge,this paper establishes the model of the bridge and mainly analyzes the influence of the weight of the main beam and the uneven settlement of the foundation on the deflection of the bridge and the law of change.The results show that when the dead weight of concrete increases by 1%,the maximum downward deflection is only about 0.4mm.When only one side of the pier is settled,the maximum lower deflection is the settlement of the pier,and the other positions are forced to form the deflection;The deflection of pier 1 and pier 2 when settling at the same time is 1.94 times that of pier 1.
作者
施秀山
杨海洋
SHI Xiu-shan;YANG Hai-yang(Honghe Prefecture Local Highway Management Office,Mengzi 651100,China;Honghe Hongfa Transportation Investment Co.,Ltd.,Mengzi 651100,China)
出处
《价值工程》
2022年第17期147-149,共3页
Value Engineering
关键词
连续刚构桥
挠度
自重
不均匀沉降
continuous rigid frame bridge
the deflection
self-respect
uneven settlement
