| 竖向荷载作用下新型复合结构的弹塑性有限元分析 |
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| 引用本文： | 王新玲,余兴华,李娜.竖向荷载作用下新型复合结构的弹塑性有限元分析[J].工业建筑,2007,37(Z1). |
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| 作者姓名： | 王新玲 余兴华 李娜 |
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| 作者单位： | 郑州大学,土木工程学院,郑州,450002 |
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| 基金项目： | 河南省自然基金资助项目(51105400)，河南省教育厅自然科学研究项目(200510459055) |
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| 摘 要： | 针对用于多层住宅代替粘土砖墙的新型人字支撑复合结构,在竖向荷载试验的基础上,进行了实体建模的弹塑性有限元分析。结果表明,有限元整体式模型计算的裂缝出现的位置、顺序和试验试件基本一致;梁跨中荷载-挠度曲线、支撑和梁跨中钢筋的荷载-应变曲线均和试验结果吻合良好;试验值和有限元计算值的开裂荷载比值为1.2、承载力比值1.04。说明采用的有限元弹塑性分析方法是合理的,可以用于分析复合结构在竖向荷载作用下的受力全过程。
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| 关 键 词： | 新型钢筋混凝土结构 受力性能 弹塑性有限元分析 人字支撑复合结构 |
THE FINITE ELEMENT PLASTICITY ANALYSIS ON NEW COMPOSITE STRUCTURES UNDER THE VERTICAL LOADS |
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| Wang Xinling,Yu Xinghua,Li Na.THE FINITE ELEMENT PLASTICITY ANALYSIS ON NEW COMPOSITE STRUCTURES UNDER THE VERTICAL LOADS[J].Industrial Construction,2007,37(Z1). |
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| Authors: | Wang Xinling Yu Xinghua Li Na |
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| Abstract: | A solid mode of finite element method is adopted to analyze test samples of new chevron bracing composite structures under vertical loads.The calculating results indicate that the positions and orders of cracks and the load-deflection curve of beam mid-span and steel's loads-strain curves of beam and brace in finite element calculating are in accord with experimental values well.The ratios of the testing and calculating values on fracture and destroy loads are respectively 1.2 and 1.04.So the finite element plasticity analytical modes are reasonable,which can be used to analyze the whole loading process of composite structure under vertical loads. |
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| Keywords: | new R C structure mechanical behaviour finite element plasticity analysis new composite structure |
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