土木工程与管理学报2025，Vol.42Issue(1)：41-51,11.DOI:10.13579/j.cnki.2095-0985.2025.20240124
BFRP-UHPC复合层加固锈蚀RC柱的轴压性能
Axial Compressive Behaviour of Corroded RC Columns Strengthened with a BFRP-UHPC Composite Jacket
摘要
Abstract
In order to investigate the axial compression behavior of corroded RC columns strengthened with BFRP-UHPC,uni-axial compression tests were carried out on ten column specimens strength-ened with BFRP-UHPC.The strengthened specimens include specimens strengthened with UHPC on-ly,with UHPC and FRP wrapping,with UHPC and FRP strip ties,as well as with all of them.They can be divided into two categories:specimens with simulated corrosion damage and specimens without simulated corrosion damage.The effect of the sectional geometry,the transverse steel reinforcement ratio and the retrofitting method on the axial compression failure modes of RC columns were studied.In order to compare with the experiment results,a finite element method 3D solid model using soft-ware ABAQUS was established and validated.The results indicate that BFRP-UHPC strengthening can obviously improve the deformability,load capacity and ductility of corroded RC columns,of which the increment is 1.07-3.04 times,1.10-1.28 times and 1.6-2.5 times.As for the improvement on the load capacity,UHPC strengthening layer is more effective than the BFRP wrapping sheet and BFRP strip ties.关键词
钢筋混凝土柱/加固/轴压性能/FRP-UHPC复合材料/有限元方法Key words
reinforced concrete column/strengthening/axial compression behavior/FRP-UHPC composite material/finite element method分类
建筑与水利引用本文复制引用
杨旭,韩天笑,王旭东,林志恒..BFRP-UHPC复合层加固锈蚀RC柱的轴压性能[J].土木工程与管理学报,2025,42(1):41-51,11.基金项目
湖南省自然科学基金(2024JJ6052) （2024JJ6052）
国家自然科学基金(51908373) （51908373）
长沙理工大学土木工程重点学科资助项目(23ZDXK16) （23ZDXK16）
