| 基于纤维模型的钢筋混凝土柱应变率效应研究 |
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| 引用本文： | 许斌,龙业平.基于纤维模型的钢筋混凝土柱应变率效应研究[J].工程力学,2011(7):103-108,116. |
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| 作者姓名： | 许斌 龙业平 |
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| 作者单位： | 湖南大学土木工程学院;湖南大学建筑安全与节能教育部重点实验室; |
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| 基金项目： | 国家自然科学基金委员会“重大工程的动力灾变”重大研究计划重点项目(90715033); 新世纪优秀人才支持计划项目(NCET-08-0178) |
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| 摘 要： | 该文基于钢筋混凝土柱构件的快速加载试验数据,分别采用CEB规范和Kulkarni和Shah建议的考虑应变率效应的混凝土动力本构关系,运用纤维模型建立了其动力纤维单元模型,并对单调快速加载下的构件的恢复力特性进行了数值模拟。与试验结果的比较表明所采用的两种动力本构模型均能够反映钢筋混凝土柱承载力随加载速率的提高而提高的特...
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| 关 键 词： | 钢筋混凝土柱 动力加载 应变率影响 数值模拟 纤维模型方法 |
STUDY ON THE BEHAVIOR OF REINFORCED CONCRETE COLUMNS WITH FIBER MODEL CONSIDERING STRAIN RATE EFFECT |
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| XU Bin,LONG Ye-ping,China.STUDY ON THE BEHAVIOR OF REINFORCED CONCRETE COLUMNS WITH FIBER MODEL CONSIDERING STRAIN RATE EFFECT[J].Engineering Mechanics,2011(7):103-108,116. |
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| Authors: | XU Bin LONG Ye-ping China |
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| Affiliation: | XU Bin1,2,LONG Ye-ping1(1.College of Civil Engineering,Hunan University,Changsha,Hunan 410082,China,2.Ministry of Education Key Laboratory of Building Safety and Energy Efficiency(Hunan University),China) |
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| Abstract: | In this study,dynamic tests on reincorced concrete(RC) column specimens subjected to high rate loadings are carried out.Two dynamic constitutive models of concrete proposed by CEB code and Kulkarni and Shah with the consideration of strain rate effects are adopted for the fiber model of RC columns,and a dynamic fiber model for the specimens is constructed and employed to study the dynamic performance of the RC column specimens.Simulation results by the two constitutive models show good agreements with the t... |
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| Keywords: | reinforced concrete columns dynamic loading strain rate effect numerical simulation fiber model method |
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