摘要
以佛开九江大桥和太平大桥为工程背景 ,提出了配筋构件徐变导致的变形及内力重分布计算的极限平衡法思想 ,并结合杆系结构徐变作用的初应变法及有限元理论 ,分析这类结构从开始建造到合拢以后几年内徐变变形和内力变化规律。
The thought of method of limit equilibrium for the computation of the deformation and the redistribution of inner force caused by creep in reinforced members is put forward with Jiujiang river bridge and Taiping bridge in Guangdong province as its experimental base.The law of creep deformation and change of inner force for rod system structures under the creep function is alalyzed from the commencement to the joining of two sections of a bridge by applying the method of initial strain and finite element theory.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2000年第4期47-52,共6页
China Journal of Highway and Transport
基金
湖南省交通科技项目(湘交97-12)
关键词
节段施工
徐变
极限平衡
初应变
有限元
segmental construction
creep
limit equilibrium
initial strain
FEM
