| 再生混凝土短柱抗震性能试验研究 |
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| 引用本文： | 张亚齐,曹万林,张建伟,尹海鹏.再生混凝土短柱抗震性能试验研究[J].震灾防御技术,2010,5(1):89-98. |
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| 作者姓名： | 张亚齐 曹万林 张建伟 尹海鹏 |
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| 作者单位： | 1. 北京工业大学建筑工程学院,北京,100124
2. 北京工业大学建筑工程学院,北京,100124;北京工业大学城市与工程安全减灾教育部重点实验室,北京,100124 |
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| 基金项目： | 北京市科技计划重点项目 |
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| 摘 要： | 本文进行了4个剪跨比为1.75的再生混凝土短柱模型抗震性能对比试验,模型按1/2缩尺。模型1为普通混凝土短柱,模型2为再生粗细骨料取代率均为50%的再生混凝土短柱,模型3为再生粗细骨料取代率均为100%的再生混凝土短柱,模型4为再生粗细骨料取代率均为100%且带交叉钢筋的再生混凝土短柱。分析了各模型的承载力、刚度及其退化过程、滞回特性、位移延性、耗能能力、破坏形态。研究表明:随着再生骨料取代率的增加,其混凝土的弹性模量明显减小,试件初始刚度、承载力、耗能能力明显下降;加设交叉钢筋的试件抗震性能显著提高;再生混凝土柱可以在轴压比较小的结构中应用。提出了基于再生混凝土强度折减的承载力简化计算方法,计算结果与实测值符合较好。
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| 关 键 词： | 再生混凝土 短柱 交叉钢筋 试验研究 抗震性能 |
| 收稿时间： | 2009/12/16 0:00:00 |
An Experimental Study on the Seismic Behavior of Recycled Concrete Short Columns with Crossed Reinforcing Bars |
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| Zhang Yaqi,Cao Wanlin,Zhang Jianwei and Yin Haipeng.An Experimental Study on the Seismic Behavior of Recycled Concrete Short Columns with Crossed Reinforcing Bars[J].Technology for Earthquake Disaster Prevention,2010,5(1):89-98. |
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| Authors: | Zhang Yaqi Cao Wanlin Zhang Jianwei and Yin Haipeng |
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| Institution: | Zhang Yaqi1),Cao Wanlin1,2),Zhang Jianwei1) , Yin Haipeng1) 1) The College of Architecture , Civil Engineering,Beijing University of Technology,Beijing 100124,China 2) Key Lab of Urban Security , Disaster Engineering,MOE,China |
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| Abstract: | A comparative study is conducted on the seismic behaviors of four 1 /2 scale RC short column models with 1.75 shear span ratios.The first model is natural concrete short column,the second is short column with 50% replacement of recycled aggregate,the third is short column with 100% replacement of recycled aggregate,and the forth is recycled concrete short column with concealed bracings.The stiffness and its degradation,load-carrying capacity,ductility,hysteretic behavior,energy dissipation and failure pheno... |
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| Keywords: | Recycled concrete Short columns Crossed reinforcing bars experimental study Seismic behavior |
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