冲击荷载对FRP布加固RC圆柱力学性能的影响  

Effects of impact load on mechanical performance of RC circular columns reinforced with FRP wraps

作　　者：于洋[1] 宋康佳 李明政 Yu Yang;Song Kangjia;Li Mingzheng(School of Civil&Architecture Engineering,Northeast Petroleum University,Daqing 163318,China;School of Mechanics&Civil Engineering,China University of Mining&Technology,Xuzhou 221008,China)

机构地区：[1]东北石油大学土木建筑工程学院,黑龙江大庆163318 [2]中国矿业大学力学与土木工程学院,江苏徐州221008

出　　处：《黑龙江科技大学学报》2024年第6期973-979,共7页Journal of Heilongjiang University of Science And Technology

基　　金：黑龙江省自然科学基金项目(LH2020E018)。

摘　　要：针对地下车库和多层停车场的柱子周围安装防撞装置,易使可用空间减小,无法满足使用需求问题,提出采用纤维增强聚合物FRP布加固钢筋混凝土RC柱的方法。利用ABAQUS有限元软件,研究在冲击荷载作用下,不同层数的玄武岩纤维BFRP布对加固柱性能的影响,对比分析BFRP布和碳纤维CFRP布对组合柱的加固效果。结果表明:在冲击速度小于16 m/s时,使用两层BFRP布进行加固可以兼顾安全性和经济性;与CFRP布相比,BFRP布在抵抗冲击荷载方面表现出更好的性能,可以替代CFRP布用于构件加固以抵御冲击荷载。This paper aims to address the insufficient demand space due to the usable space reduced caused by the installation of anti-collision devices around columns in underground garages and multi-story parking lots,and proposes a reinforcing solution to RC(Reinforced Concrete)columns by using FRP(Fiber Reinforced Polymer)fabric.The study involves investigate the impact of different layers of Basalt Fiber Reinforced Polymer(BFRP)fabric on column performance under the impact loads with ABAQUS finite element software;and comparing and analyzing the reinforcement effects on the composite columns with BFRP fabric and Carbon Fiber Reinforced Polymer(CFRP)fabric.The research results indicate that two layers of BFRP fabric for reinforcement can balance safety and cost-effectiveness as the impact velocity less than 16 m/s.Compared to CFRP fabric,BFRP fabric exhibits superior performance in resisting impact loads and can serve as a viable alternative instead of CFRP fabric for component reinforcement against impact loads.

关 键 词：混凝土圆柱 FRP布 冲击荷载 

分 类 号：TU312[建筑科学—结构工程]