| GFRP管-混凝土-钢管组合柱轴压性能 |
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| 引用本文： | 李文,杨思雨,那昱. GFRP管-混凝土-钢管组合柱轴压性能[J]. 沈阳工业大学学报, 2017, 39(3): 346-351. DOI: 10.7688/j.issn.1000-1646.2017.03.19 |
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| 作者姓名： | 李文 杨思雨 那昱 |
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| 作者单位： | 1. 东北石油大学 土木建筑工程学院, 黑龙江 大庆 163318; 2. 上海送变电工程公司 变电(土建)分公司, 上海 200235 |
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| 基金项目： | 国家自然科学基金资助项目(51308028);黑龙江省教育厅科学技术研究计划项目(12543023) |
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| 摘 要： | 为了研究构件在不同混凝土强度和试件尺寸下的力学性能,进行了两根GFRP管-混凝土-钢管组合柱(DSTC)轴压构件的试验研究,并运用非线性有限元分析软件ANSYS,在正确建立分析模型的基础上,对8个轴压构件的荷载-应变曲线及极限承载力变化趋势进行了模拟分析.结果表明:提高混凝土强度等级时,DSTC的力学性能得到了显著提高;当试件尺寸不同时,尺寸效应对不同混凝土强度等级的DSTC力学性能的影响程度不同.
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| 关 键 词： | 玻璃纤维 静力试验 有限元分析 混凝土强度 试件尺寸 承载力 应力云图 荷载-应变曲线 |
Axial compression performance of GFRP-concrete-steel tubular composite column |
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| LI Wen,YANG Si-yu,NA Yu. Axial compression performance of GFRP-concrete-steel tubular composite column[J]. Journal of Shenyang University of Technology, 2017, 39(3): 346-351. DOI: 10.7688/j.issn.1000-1646.2017.03.19 |
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| Authors: | LI Wen YANG Si-yu NA Yu |
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| Affiliation: | 1. School of Civil Engineering and Architecture, Northeast Petroleum University, Daqing 163318, China; 2. Power Transformation and Civil Engineering Branch Company, Shanghai Power Transmission and Transformation Engineering Company, Shanghai 200235, China |
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| Abstract: | In order to study the mechanical properties of components under different concrete strength and specimen size, the experimental study for two axial compression components of GFRP-concrete-steel tubular composite column(DSTC)was carried out. On the basis of establishing the analysis model, the load-strain curves and the change trend of bearing capacity for 8 axial compression components were simulated and analyzed with the nonlinear finite element analysis software ANSYS. The results show that when the strength grade of concrete gets improved, the mechanical properties of DSTC were significantly enhanced. When the size of specimens is different, the size effect has a certain influence on the mechanical properties of DSTC with different strength grades. |
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| Keywords: | glass fiber static test finite element analysis concrete strength specimen size bearing capacity stress nephogram load-strain curve |
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