PVC-CFRP管钢筋混凝土柱抗震性能非线性有限元分析  

Nonlinear finite element analysis on seismic behavior of PVC-CFRP confined reinforced concrete columns

作　　者：于峰[1] 程安春[1] 徐国士[1] 

机构地区：[1]安徽工业大学建筑工程学院,马鞍山243002

出　　处：《计算力学学报》2015年第6期781-788,共8页Chinese Journal of Computational Mechanics

基　　金：国家自然科学基金(51008001;51578001);安徽省教育厅自然科学基金重大(KJ2015ZD10)资助项目

摘　　要：在试验研究基础上,借助有限元分析软件,选取合理材料本构关系,建立PVC-CFRP管钢筋混凝土柱有限元分析模型,验证分析模型的正确性。对试验进行延拓分析,探讨混凝土强度等级、纵筋配筋率、CFRP条带层数及剪跨比等对试件骨架曲线、刚度退化影响规律,分析低周往复荷载作用下PVC-CFRP管钢筋混凝土柱的受力性能,揭示低周往复荷载作用下PVC-CFRP管钢筋混凝土柱的受力工作机理。Based on the experimental study, using finite element analysis software, the reasonable constitutive relations of materials are chosen, a finite element analysis model of PVC-CFRP confined reinforced concrete column is established,the analysis model is verified by experiment results. Further studies are carried out,the effects of concrete strength, longitudinal reinforcement ratio, layer of CFRP strips and shear span ratio on the skeleton curves and the rigidity degradation are discussed, The mechanical beha- vior of PVC-CFRP confined reinforced concrete column is analyzed under low frequency cyclic load,and the working mechanism of PVC-CFRP confined reinforced concrete column is revealed under low frequency cyclic load.

关 键 词：PVC-CFRP管 钢筋混凝土柱 有限元分析 受力机理 

分 类 号：O242.21[理学—计算数学]