| 箍筋约束高强混凝土应力-应变本构关系模型 |
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| 引用本文： | 宋佳,李振宝,杜修力. 箍筋约束高强混凝土应力-应变本构关系模型[J]. 天津师范大学学报(自然科学版), 2012, 32(4): 41-46,70 |
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| 作者姓名： | 宋佳 李振宝 杜修力 |
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| 作者单位： | 北京工业大学工程抗震与结构诊治北京市重点试验室,北京,100022 |
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| 基金项目： | 国家自然科学基金重点资助项目 |
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| 摘 要： | 针对箍筋约束高强混凝土,优选6种典型模型对172根方形截面短柱在轴压作用下的峰值强度和延性进行预测.误差分析结果表明：Nagashima模型与Legeron模型的计算精度相对较高.最后,基于大量试验数据对Nagashima模型及Hong模型进行修正,修正模型精度较高且便于应用.
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| 关 键 词： | 约束混凝土 方形截面 应力-应变本构关系模型 误差分析 |
Stress-strain model for high strength concrete confined by hoop reinforcement |
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| SONG Jia , LI Zhen-bao , DU Xiu-li. Stress-strain model for high strength concrete confined by hoop reinforcement[J]. Journal of Tianjin Normal University(Natural Science Edition), 2012, 32(4): 41-46,70 |
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| Authors: | SONG Jia LI Zhen-bao DU Xiu-li |
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| Affiliation: | (Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100022,China) |
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| Abstract: | Regarding the high strength concrete confined by hoop reinforcement,6typical models were chosen to predict the strength and the ductility of 172square cross-sectional short columns under axial compression.The error analysis results showed that the model Nagashima and the model Legeron calculated more accurately comparatively.Finally,the model Nagashima and the model Hong were modified,and an empirical model with high precision which is more convenient for operation and widely applicable was proposed based on a large number of experimental data. |
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| Keywords: | confined concrete square cross-section stress-strain model error analysis |
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