| 复合钢管高强混凝土短柱轴心受压性能试验与分析 |
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| 引用本文： | 钱稼茹,张扬,纪晓东,曹万林. 复合钢管高强混凝土短柱轴心受压性能试验与分析[J]. 建筑结构学报, 2011, 32(12): 162-169 |
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| 作者姓名： | 钱稼茹 张扬 纪晓东 曹万林 |
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| 作者单位： | （1.清华大学 土木工程安全与耐久教育部重点实验室, 北京 100084;;2.北京工业大学 建筑工程学院, 北京 100124） |
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| 基金项目： | 北京市科技计划重点项目(D09050600370000); 北京市教委科技计划重点项目(KZ200910005008); 清华大学自主科研计划项目(20101081766) |
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| 摘 要： | 为研究外方内圆复合钢管高强混凝土短柱轴心受压性能,完成了三组共23个试件的轴压试验和典型试件的非线性有限元分析。试验结果表明：各试件的破坏形态基本相同,为方钢管向外鼓曲,方钢管与圆钢管之间的混凝土酥松、局部压碎;试验结束时,试件纵向应变达到0.09~0.11,尚能承担约70%的峰值竖向力;按文献［8］有关公式计算得到的试件压缩刚度平均值为实测值的83.6%;采用圆钢管对其管内混凝土提供约束,方钢管对混凝土不提供约束、但提供轴压承载力的计算假定,试件轴心受压承载力计算值与试验值吻合良好;非线性有限元计算得到的竖向力 纵向应变曲线及破坏过程与试验结果符合较好。
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| 关 键 词： | 非线性有限元分析 复合钢管高强混凝土短柱 轴心受压试验 轴压承载力 |
Test and analysis of axial compressive behavior of short composite-sectioned high strength concrete filled steel tubular columns |
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| QIAN Jiaru ,ZHANG Yang ,JI Xiaodong,CAO Wanlin. Test and analysis of axial compressive behavior of short composite-sectioned high strength concrete filled steel tubular columns[J]. Journal of Building Structures, 2011, 32(12): 162-169 |
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| Authors: | QIAN Jiaru ZHANG Yang JI Xiaodong CAO Wanlin |
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| Affiliation: | (1.Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Beijing 100084, China;;2.The College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China) |
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| Abstract: | To study the axial compressive behavior of short composite-sectioned high strength concrete filled steel tubular(CSCFT) columns,3 groups of totally 23 specimens were tested under axial compressive loading and the non-linear finite element analysis of one specimen was performed.Test results indicate that the failure mode of all the specimens were similar,i.e.,the square steel tube buckles outwards,the concrete between the circular steel tube and the square steel tube is loosened and partially crushed.At the ... |
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| Keywords: | short composite-sectioned high strength concrete filled steel tubular column axial compressive loading test nonlinear finite element analysis axial compressive strength |
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