| 一字形芯钢管混凝土防屈曲支撑分析研究 |
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| 引用本文： | 杨士萱,史三元,郝科语,王天龙.一字形芯钢管混凝土防屈曲支撑分析研究[J].河北工程大学学报,2017,34(3):1-5. |
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| 作者姓名： | 杨士萱 史三元 郝科语 王天龙 |
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| 作者单位： | 河北工程大学 土木工程学院, 河北 邯郸 056038,河北工程大学 土木工程学院, 河北 邯郸 056038,中国建筑一局有限公司 深圳分公司, 广东 深圳 518000,河北工程大学 土木工程学院, 河北 邯郸 056038 |
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| 基金项目： | 国家自然科学基金资助项目（51174124）；河北省研究生创新项目（171290080015）；河北省教育厅青年基金资助项目（QN2014070） |
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| 摘 要： | 利用有限元分析软件ANSYS对普通支撑和一字形钢管混凝土防屈曲支撑进行模态分析,通过对比两种支撑的模态云图和振型参数来研究加约束的一字型芯钢混防屈曲支撑的优劣势和临界荷载变化及其失稳的位置。分析一字形钢管混凝土防屈曲支撑的滞回耗能,防屈曲支撑的摩擦系数和填充混凝土的强度因素。得到以下结论:一字形芯更容易出现y轴方向的弯曲失稳,框架结构的刚度以及自振周期能够通过安装一字形钢混屈曲支撑而发生明显改变。
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| 关 键 词： | 防屈曲支撑 ANSYS 屈曲模态分析 滞回性能 |
| 收稿时间： | 2017/7/3 0:00:00 |
Analysis of the rectangle section BRB with concrete-filled tubes |
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| Authors: | YANG Shixuan SHI Sanyuan HAO Keyu and WANG Tianlong |
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| Affiliation: | School of Civil Engineering, Hebei University of Engineering, Handan 056038, P. R. China,School of Civil Engineering, Hebei University of Engineering, Handan 056038, P. R. China,China Construction Bureau co. Ltd. Shenzhen branch, Guangdong Shenzhen, 518000, China and School of Civil Engineering, Hebei University of Engineering, Handan 056038, P. R. China |
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| Abstract: | The finite element analysis software (ANSYS) is used to carry out the modal analysis of the common brace and buckling restrained brace. The advantages and disadvantages of the two kinds of support modes are compared. On the basis of modal analysis, the buckling mode of the structure is analyzed. The critical load changes and instability position are also studied. The friction coefficient of the buckling restrained brace and the strength of the filled concrete are analyzed. The results show that the bending of the Y axis is easier to occur in one core, and the stiffness and the natural vibration period of the frame structure can be obviously changed by installing a steel shaped hybrid buckling brace. |
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| Keywords: | buckling-restrained brace ANSYS buckling mode analysis hysteretic performance |
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