李茜莎
李茜莎.基于有限元的钢筋混凝土框架柱CFRP加固分析[J].混凝土与水泥制品,2019(12):74-77.
LI X S.Study on Reinforcement Effect of Reinforced Concrete Frame Columns Bonded with CFRP Based on Finite Element Method[J].China Concrete and Cement Products,2019(12):74-77.
基于有限元的钢筋混凝土框架柱CFRP加固分析
李茜莎
李茜莎.基于有限元的钢筋混凝土框架柱CFRP加固分析[J].混凝土与水泥制品,2019(12):74-77.
LI X S.Study on Reinforcement Effect of Reinforced Concrete Frame Columns Bonded with CFRP Based on Finite Element Method[J].China Concrete and Cement Products,2019(12):74-77.
摘 要:为研究钢筋混凝土框架柱在不同CFRP包裹方案下的加固效果,以某钢筋混凝土厂房加固改造工程为例,通过有限元分析软件ANSYS从拟静力、骨架曲线、耗能角度对B×8框架柱两种加固方案进行了计算分析。结果表明,两端集中包裹方案对柱最大承载力和极限荷载的提高、刚度退化的限制、耗能能力的增强效果均优于均匀包裹方案,推荐采用柱两端集中包裹CFRP法加固钢筋混凝土框架柱的加固方案。
Abstract: A reinforced concrete building reinforcement project was taken as an example, and the finite element analysis software ANSYS was used to calculate and analyze the two reinforcement schemes of CFRP uniform package and concentrated package at both ends of the B×8 frame column from the pseudo static, skeleton curve and energy dissipation angle. The results show that the maximum package scheme at both ends is the largest to the column. The improvement of the bearing capacity and ultimate load, the limit of stiffness degradation and the enhancement effect of energy dissipation are all better than those of the uniform package. It is recommended to use the CFRP method to reinforce the reinforced concrete frame columns at both ends of the column.
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