| 活性粉末混凝土T形梁抗剪试验研究 |
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| 引用本文： | 季文玉,丁波,安明喆.活性粉末混凝土T形梁抗剪试验研究[J].中国铁道科学,2011,32(5). |
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| 作者姓名： | 季文玉 丁波 安明喆 |
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| 作者单位： | 北京交通大学土木与建筑工程学院,北京,100044 |
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| 基金项目： | 铁道部科技研究开发计划项目(2010G004-M) |
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| 摘 要： | 通过改变模型试验梁的剪跨比、配箍率和纵筋配筋率,对12根钢筋活性粉末混凝土(RPC)T形试验梁进行试验,研究活性粉末混凝土T形梁抗剪承载力和破坏形态及主要影响因素.结果表明:与普通混凝土梁相比,活性粉末混凝土T形试验梁具有较高的抗剪承载力和变形能力；剪跨比在1～4范围内时,试验梁的破坏形态表现为斜压和剪压破坏,且与普通混凝土梁的破坏形态有着明显差异；剪跨比、配箍率和纵筋配筋率对试验梁的抗剪承载力影响显著,抗剪承载力随着剪跨比的增大而减小,随配箍率的提高而提高,随纵筋配筋率的增大而增大.
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| 关 键 词： | 活性粉末混凝土 T型梁 抗剪承载力 抗剪破坏形态 剪跨比 配筋率 |
Experimental Study on the Shear Capacity of Reactive Powder Concrete T-Beams |
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| JI Wenyu,DING Bo,AN Mingzhe.Experimental Study on the Shear Capacity of Reactive Powder Concrete T-Beams[J].China Railway Science,2011,32(5). |
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| Authors: | JI Wenyu DING Bo AN Mingzhe |
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| Affiliation: | JI Wenyu,DING Bo,AN Mingzhe(School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | Experiments of 12 reinforced reactive powder concrete(RPC) T-shaped test beams with different shear span-depth ratios,stirrup ratios and longitudinal reinforcement ratios were carried out.The shear strengths,failure patterns and their main influencing factors of reinforced RPC T-shaped beams were investigated.The experimental results indicate that T-shaped RPC test beams possess higher shear strength and better deformation capacity compared with normal concrete beams.When shear span-depth ratios are in the ... |
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| Keywords: | Reactive powder concrete T-shaped beam Shear strength Shear failure pattern Shear span-depth ratio Reinforcement ratio |
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