| 无腹筋混合配筋混凝土梁抗剪性能试验研究 |
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| 引用本文： | 张晓亮,屈文俊.无腹筋混合配筋混凝土梁抗剪性能试验研究[J].同济大学学报(自然科学版),2010,38(10):1421-1427. |
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| 作者姓名： | 张晓亮 屈文俊 |
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| 作者单位： | 同济大学,土木工程学院,上海,200092 |
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| 基金项目： | 国家自然科学基金项目（50178050）,国家“十一五”科技支撑计划（高速磁浮混凝土轨道结构耐久性研究） |
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| 摘 要： | 对1组无腹筋混合配筋(GFRP筋(glass fiberreinforced polymer)和钢筋)混凝土梁抗剪性能进行了试验研究.所有试验梁均为三分点加载,剪跨比为2.54和2.67.12根试验梁按有效配筋率分为3组,共包括3根钢筋混凝土梁,3根GFRP筋梁和6根GFRP筋和钢筋混合配筋梁.所有试验梁均为斜拉破坏.分析了试验梁的荷载-挠度关系,裂缝开展及抗剪承载力,并将各设计规范或指南的抗剪承载力预测值与试验结果对比.试验表明,有效配筋率相同的钢筋混凝土梁、混合配筋混凝土梁和GFRP筋梁具有相近的抗剪承载力.钢筋与FRP(fiber reinforced polymer)筋轴向刚度比对抗剪性能影响较小.规范Eurocode 2—04及CSA A23.3—04的抗剪承载力预测结果与试验结果符合度较好,而规范ACI440.1R—06,JSCE及CSAS6—06的预测结果偏保守.
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| 关 键 词： | 混凝土梁 复合材料 FRP筋 抗剪承载力 |
| 收稿时间： | 6/22/2009 3:57:18 PM |
| 修稿时间： | 2010/7/20 0:00:00 |
Shear Behavior of Concrete Beams Reinforced with Hybrid (GFRP and Steel) Bars Without Stirrups |
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| ZHANG Xiaoliang and QU Wenjun.Shear Behavior of Concrete Beams Reinforced with Hybrid (GFRP and Steel) Bars Without Stirrups[J].Journal of Tongji University(Natural Science),2010,38(10):1421-1427. |
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| Authors: | ZHANG Xiaoliang and QU Wenjun |
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| Institution: | College of Civil Engineering, Tongji University, Shanghai 200092, China;College of Civil Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | This paper evaluates the shear behavior of hybrid GFRP/steel-reinforced concrete beams without transverse reinforcement.All beams were subjected to four-point loading,with shear span-to-effective depth ratio of 2.54 and 2.67 respectively.The test variables were effective reinforcement ratio and axial stiffness ratio between GFRP and steel bars.The test beams included three beams reinforced with steel bars,three beams reinforced with GFRP bars and six beams reinforced with GFRP and steel bars.An analysis was... |
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| Keywords: | concrete beams composite materials FRP bars shear strength |
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