广西科技大学学报2025，Vol.36Issue(4)：51-58,8.DOI:10.16375/j.cnki.cn45-1395/t.2025.04.007
预应力CFRP筋-型钢混凝土斜腹式桁架转换层有限元分析
A finite element analysis of the transfer layer of steel reinforced concrete with prestressed oblique belly truss
摘要
Abstract
In order to explore the influence of different combination factors of axial compression ratio and prestressed tension level on the ultimate load of prestressed CFRP tendon-steel reinforced concrete inclined web truss transfer floor frame,ABAQUS finite element software was used to carry out quasi-static analysis on the three-dimensional solid finite element model of the frame.This analysis was based on the good agreement between the calculation results of hysteresis curve and the existing quasi-static test results.The results show that under the same axial compression ratio,when the prestressed tension level ranges from 0 to 50%,the ultimate load is generally increased by about 26.3%-36.6%.When the axial compression ratio is 0.5,the ultimate bearing capacity of the frame increases the most.However,when the axial compression ratio is 0.2 and 0.3 and the prestressed tension level increases from 30%to 50%,the ultimate bearing capacity of the frame does not increase but decreases.The adopted modeling analysis method can effectively reflect the hysteretic results of the structure and can be easily used for the design judgment in practical engineering.关键词
CFRP筋-型钢混凝土/桁架转换层/预应力张拉水平/轴压比/有限元分析Key words
CFRP tendon-steel reinforced concrete/truss transfer floor/degree of prestress/axial compression ratio/finite element analysis分类
建筑与水利引用本文复制引用
邓宇,倪淼,杨丝棋..预应力CFRP筋-型钢混凝土斜腹式桁架转换层有限元分析[J].广西科技大学学报,2025,36(4):51-58,8.基金项目
国家自然科学基金项目(52268021)资助 （52268021）
