| 反复荷载下混凝土框架柱塑性铰区基于延性的抗剪承载力机理分析 |
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| 引用本文： | 管品武,王建强,刘立新.反复荷载下混凝土框架柱塑性铰区基于延性的抗剪承载力机理分析[J].世界地震工程,2005,21(3):75-81. |
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| 作者姓名： | 管品武 王建强 刘立新 |
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| 作者单位： | 郑州大学,土木工程学院,河南,郑州,450002 |
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| 摘 要： | 在试验研究的基础上，以框架结构延性设计为目的采用桁架＋拱模型研究了框架柱塑性铰区域抗剪受力机理，分析了，位移延性系数、加载循环次数等因素对框架柱构件塑性铰区域剪切受力性能的影响，并结合试验结果提出了混凝土框架柱塑性铰区域剪切承载力抗震延性设计实用公式，可有效实现结构的延性破坏机制。主要为配合GBJ10-89的修订，该成果已被《混凝土结构设计规范》（GB50010—2003）吸收。
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| 关 键 词： | 框架柱 塑性铰区域 地震剪切抗力 箍筋抗剪贡献 混凝土抗剪贡献 位移延性系数 |
| 文章编号： | 1007-6069(2005)03-0075-07 |
| 收稿时间： | 2005-04-13 |
| 修稿时间： | 2005-07-21 |
Research on mechanism of seismic shear capacity of reinforced concrete frame columns within yield hinge regions under cyclic shear |
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| GUAN Pin-wu,WANG Jian-qiang,LIU Li-xin.Research on mechanism of seismic shear capacity of reinforced concrete frame columns within yield hinge regions under cyclic shear[J].World Information On Earthquake Engineering,2005,21(3):75-81. |
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| Authors: | GUAN Pin-wu WANG Jian-qiang LIU Li-xin |
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| Abstract: | The seismic investigation shows the unavoidable shear failure of columns. For more reliable design method of ductility reinforced concrete columns the shear tests of 10 columns and analysis under cyclic load have been made. In the paper based on all of the experiment achievement the truss-arch model is adopted up to analyze the shear capacity and shear failure mechanism of columns within yield hinge region. The shear contribution of concrete and transverse reinforcement, the mechanic response of various displacement ductility factors under the cyclic load, and so on are studied by truss-arch model. A seismic shear capacity equation for ductility and non-ductility columns is proposed to account for the reduced shear contribution of concrete corresponding to the large displacement ductility levels. The columns'limited transverse displacement within the yielding hinge region is also discussed. The seismic shear capacity equation for the columns with various ductility levels is suggested by using statistical method on the basis of test data collected from Japan and China. |
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| Keywords: | frame columns plastic-hinge region seismic shear capacity shear contribution of stirrups shear contribution of concrete displacement ductility ratio |
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