复合箍筋钢筋混凝土柱静力试验与数值模拟分析  

The Test and Numerical Simulation Analysis of Reinforced Concrete Columns with Complex Stirrups

作　　者：纪晟晖 蒋国平[2] 吴能森 郭金龙 刘心勇[3] 卢德辉 JI Shenghui;JIANG Guoping;WU Nengsen;GUO Jinlong;LIU Xinyong;LU Dehui(College of Transportation and Civil Engineering,Fujian Agriculture and Forestry University,Fuzhou 350108,China;School of Civil Engineering,Fujian Jiangxia University,Fuzhou 350108,China;Fujian Huahang Construction Group Co.,Ltd,,Fuzhou 350001,China;School of Civil and Transportation Engineering,South China University of Technology,Guangzhou 510641,China)

机构地区：[1]福建农林大学交通与土木工程学院,福建福州350108 [2]福建江夏学院工程学院,福建福州350108 [3]福建华航建设集团有限公司,福建福州350001 [4]华南理工大学土木与交通学院,广东广州510641

出　　处：《东莞理工学院学报》2022年第5期111-118,共8页Journal of Dongguan University of Technology

基　　金：福建省自然科学基金项目(2019J01884)、(2019J01885);福建省中青年教师教育科研项目(JT180579);福建江夏学院校级科研项目(JXZ2019003)。

摘　　要：为研究复合箍筋钢筋混凝土柱的静力性能表现,设计了2个配置复合箍筋的矩形截面钢筋混凝土柱试件,分别对其进行轴压和偏压加载试验。此外,通过有限元软件ABAQUS建立复合箍筋钢筋混凝土柱数值模型,在验证其合理的基础上,对截面纵筋配筋率、混凝土抗压强度等级、体积配箍率这三个因素进行参数分析,探究其对承载力的影响规律,并给出考虑复合箍筋影响的适用于复合箍筋钢筋混凝土柱的轴压承载力计算公式。结果表明:复合箍筋钢筋混凝土柱极限承载力的大小与所分析的三个因素均相关。对于轴压极限承载力的影响程度而言,混凝土抗压强度等级的影响最大;对于偏压极限承载力,截面纵筋配筋率的影响最大。而所给出的轴压承载力计算公式相较规范通用公式具有更高的预测精度。In order to study the static performances of reinforced concrete column with complex stirrups,two specimens of rectangular reinforced concrete columns with complex stirrups were designed and tested under axial and bias loading respectively.In addition,the numerical model of reinforced concrete columns with complex stirrups is established through the finite element software ABAQUS.Using the numerical model,the ratio of longitudinal reinforcement,the concrete compressive strength and the ratio of volume stirrups are analyzed to analyze their influence on the bearing capacity of the column.A formula for calculating the axial compressive bearing capacity of reinforced concrete columns with complex stirrups considering the effect of composite stirrups is given.The results show that the ultimate bearing capacity of reinforced concrete columns with complex stirrups is positively correlated with the ratio of longitudinal reinforcement,the concrete compressive strength and the ratio of volume stirrups.For the ultimate bearing capacity under axial compression,the concrete compressive strength has the greatest influence.For the ultimate bearing capacity under bias compression,the ratio of longitudinal reinforcement is the most influential factor.Compared with the standard general formula,the given formula has higher prediction accuracy.

关 键 词：复合箍筋 轴压性能 偏压性能 数值模拟 轴压承载力计算公式 

分 类 号：TU375[建筑科学—结构工程]