哈尔滨工程大学学报2025，Vol.46Issue(5)：884-891,8.DOI:10.11990/jheu.202309046
混合配筋混凝土柱偏心受压力学性能
Eccentric compression behavior of hybrid reinforced concrete columns
摘要
Abstract
To investigate the eccentric compression behavior of concrete columns reinforced with basalt fiber rein-forced polymer(BFRP)and steel bars(hybrid reinforcement),eccentric compression tests were conducted on hy-brid reinforced columns,which consisted of steel bars on the inner side and BFRP bars on the outer side.The hy-brid reinforced columns and the reference reinforced concrete column were designed based on the principle of equal stiffness.The study focused on two parameters:the ratio of steel bars to BFRP bars(As/Af)and the diameter of the BFRP bars.The experimental results indicated that owing to the shorter lever arm of the steel bars on the inner side,the load-carrying capacity and lateral stiffness of the hybrid reinforced columns were lower than those of the reference reinforced concrete column.By reducing the reinforcement ratio(As/Af),the load-carrying capacity and stiffness of the hybrid reinforced columns increased continuously,while ductility gradually decreased.Under equal effective stiffness,using BFRP bars with a larger diameter slightly reduced the load-carrying capacity of the hybrid reinforced columns but improved their ductility.The findings of this study provide a fundamental basis for practical engineering design and future research.关键词
混凝土柱/玄武岩纤维复合材料筋/混合配筋/偏心受压/等刚度设计/承载力/延性/二阶效应Key words
concrete column/BFRP bar/hybrid reinforcement/eccentric compression/equal stiffness design/load-carrying capacity/ductility/second-order effect分类
土木建筑引用本文复制引用
刘水,梅艳婷,王智雄,汪昕,陈志清,刘霞,安迪,林敬辉,李达..混合配筋混凝土柱偏心受压力学性能[J].哈尔滨工程大学学报,2025,46(5):884-891,8.基金项目
国家重点研发计划(2022YFB3706500) （2022YFB3706500）
国家自然科学面上基金项目(52278244). （52278244）
