| 钢筋轴向编排距离对方形钢筋混凝土柱承载能力的影响 |
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| 引用本文： | 周思柱. 钢筋轴向编排距离对方形钢筋混凝土柱承载能力的影响[J]. 工业建筑, 1998, 28(8): 25-29 |
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| 作者姓名： | 周思柱 |
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| 作者单位： | 江汉石油学院湖北荆州 434102 休斯顿大学美国 |
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| 摘 要： | 总结了美、欧等国有关钢筋轴向编排距离对方形钢筋混凝土柱承载能力的影响的研究现状，采用有限元方法将混凝土划分成三维砖块单元，钢筋划分成杆单元，利用单元粘贴技术形成了完整的钢筋混凝土有限元分析模型。经过有限元计算，提出了“期望标准应力”，定义了“有效限定应力因子”、“平均有效限定应力”和“平均限定因子”的概念。分析了五种钢筋轴向编排距离对钢筋混凝土柱承载能力的影响，给出了直观图形描述和平均限定因子的回归方程。
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| 关 键 词： | 混凝土，有限元分析，应力 |
| 修稿时间： | 1998-06-12 |
THE EFFECTS OF LOADING CAPABILITY ON SPACING OF LATERAL STEEL AND COLUMN CONFINEMENT |
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| Zhou Sizhu S.T.Mau. THE EFFECTS OF LOADING CAPABILITY ON SPACING OF LATERAL STEEL AND COLUMN CONFINEMENT[J]. Industrial Construction, 1998, 28(8): 25-29 |
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| Authors: | Zhou Sizhu S.T.Mau |
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| Affiliation: | Zhou Sizhu S.T.Mau(Janghan Petroleum University 434102)(University of Houston) |
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| Abstract: | This paper gives a review of previous work about the effeects of loading capability on spacting of lateral steel and column confinenent.Finite element method is used to analysize the properties of the concretecolumns.The element used in concrete is an 8-node brick element is ALGOR library.The wires in concretecolumns are modeled by two-mode tress elements.These two elements are combined to develop the finiteelement model.In order to analysize the result of the calculation,we define a expected normal stress,effectiveconfining stress and average confining factor. Five spacing cases were studied:s/a=0.1,0.5,1.0,1.5and 2.0.Theresults for a typical case is shown in diagram. A regression analysis yields the average confining factorformulas. |
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| Keywords: | concrete finite element analysis stress |
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