建筑钢结构进展2017，Vol.19Issue(4)：98-104,7.DOI:10.13969/j.cnki.cn31-1893.2017.04.013
防屈曲技术在某网架加固工程中的应用
The Application of Buckling Restrained Technology in a Retrofit Project of Grid Structure
摘要
Abstract
A new approach for strengthening members in grid structure is discussed combining the engineering practice based on theoretical research and numerical analysis.The deflection differential equation of strengthened member in small deflection is built,and the expressions for stability characteristic equations of strengthened member are obtained based on boundary conditions and deformable coordination condition.Euler load and elastic-plastic ultimate bearing capacity for reinforced member are calculated using beam and shell element in finite element analysis.The results show that Euler load from theoretical study agrees with that from numerical results.This indicates theoretical analyses are correct.Using shell element model,more accurate ultimate bearing capacity in nonlinear condition is obtained from the finite element model.This study shows this strengthening approach is capable of improving the stability of members,and this can optimize construction project significantly.关键词
网架结构/加固/屈曲约束/稳定分析/极限承载力Key words
grid structure/strengthening/buckling restrained/stability analysis/ultimate bearing capacity分类
建筑与水利引用本文复制引用
贾斌,赖伟,魏明宇..防屈曲技术在某网架加固工程中的应用[J].建筑钢结构进展,2017,19(4):98-104,7.
