| 配置高强箍筋混凝土柱承载力数值分析 |
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| 引用本文： | 阴寅宏,杨德健,王玉良.配置高强箍筋混凝土柱承载力数值分析[J].河北煤炭建筑工程学院学报,2011(2):19-23. |
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| 作者姓名： | 阴寅宏 杨德健 王玉良 |
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| 作者单位： | [1]天津城市建设学院土木工程系,天津300384 [2]天津市软土特性与工程环境重点实验室,天津300384 |
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| 摘 要： | 通过对6根配置不同强度、不同箍筋间距的高强混凝土柱在轴向压力作用下进行非线性有限元数值模拟,研究了混凝土轴压柱应力—应变关系曲线和裂缝开展规律、箍筋约束混凝土的机理、箍筋间距和箍筋强度对混凝土轴压柱承载力的影响。结果表明：伴随着箍筋间距的加密和箍筋强度的提高,混凝土柱的承载力和峰值应变有着显著的提高。
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| 关 键 词： | 高强混凝土 高强螺旋箍筋 应力-应变曲线 裂缝 配箍率 |
FE analysis of concrete columns capacity confined by high-strength spiral stirrup |
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| Authors: | YIN Yin-hong YANG De-jian WANG Yu-liang |
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| Affiliation: | 1.Department of Civil Engineering of Tianjin Institute of Urban Construction,Tianjin,300384,China;2.Tianjin Key Laboratory Soft Soil Characteristics and Engineering Environment,Tianjin,300384,China) |
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| Abstract: | Based on FE Analysis of six high-strength concrete columns confined by different intensity and different spacing spiral stirrup under axial pressure,the specimen stress-strain relationship curves and crack propagation rules were researched.Confining mechanism of spiral stirrup was discussed.And then the effect of the spacing and strength of stirrup were analyzed based on the numerical results.The results show that the bearing capacity and peak strain increase significantly with the stirrup ratio and stirrup strength increase. |
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| Keywords: | high-strength concrete high-strength spiral stirrup stress-strain curves crack ratio of hoops |
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