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16m/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.
Abstract
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 resis-ting impact loads and can serve as a viable alternative instead of CFRP fabric for component reinforcement against impact loads.
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