| 足尺寸GFRP筋HFRC柱的轴压性能与理论研究 |
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| 引用本文： | 邓宗才,贾鹏星.足尺寸GFRP筋HFRC柱的轴压性能与理论研究[J].北京工业大学学报,2016,42(12):1873-1879. |
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| 作者姓名： | 邓宗才 贾鹏星 |
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| 作者单位： | 北京工业大学城市与工程防灾减灾省部共建教育部重点实验室,北京,100124;北京工业大学城市与工程防灾减灾省部共建教育部重点实验室,北京,100124 |
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| 基金项目： | 国家自然科学基金项目(51378032 |
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| 摘 要： | 为了研究玻璃纤维增强聚合物( glass fiber reinforced polymer, GFRP )筋混杂纤维混凝土( hybrid fiber reinforced concrete,HFRC)柱的轴压性能,进行了5个GFRP筋HFRC柱和1个未配筋HFRC柱的轴压试验,分析了GFRP箍筋间距和纵筋配筋率对GFRP筋HFRC柱轴压性能的影响规律。结果表明：提高GFRP纵筋配筋率可以提高试件的承载力,箍筋间距小的试件的延性明显高于箍筋间距大的试件。根据试验数据回归出了GFRP筋HFRC柱峰值应力、峰值应变以及承载力的计算公式。
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| 关 键 词： | GFRP筋 混杂纤维混凝土 轴压性能 承载力 变形 |
Axial Compression Performance and Theoretical Study of Full-size HFRC Columns Reinforced With GFRP Bars and Spirals |
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| DENG Zongcai,JIA Pengxing.Axial Compression Performance and Theoretical Study of Full-size HFRC Columns Reinforced With GFRP Bars and Spirals[J].Journal of Beijing Polytechnic University,2016,42(12):1873-1879. |
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| Authors: | DENG Zongcai JIA Pengxing |
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| Abstract: | In order to study the axial compression behaviors of HFRC ( hybrid fiber reinforced concrete) columns reinforced with GFRP ( glass fiber reinforced polymer ) bars and spirals, five HFRC columns reinforced with GFRP bars and spirals and one HFRC column were tested. The influence effects of the stirrup spacing and longitudinal reinforcement ratio were analyzed. The results indicate that the increase of longitudinal reinforcement ratio can enhance the bearing capacity and the ductility of small stirrup spacing specimens was significantly higher than that of large stirrup spacing specimens. According to the experimental data, the calculation formula of the peak stress, peak strain and the bearing capacity of GFRP reinforced HFRC columns are returned. |
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| Keywords: | glass fiber reinforced polymer ( GFRP ) bars and spirals hybrid fiber reinforced concrete ( HFRC) axial compression performance axial capacity deformation |
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