| 钢管约束再生混凝土轴压试验研究 |
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| 引用本文： | 肖建庄,杨洁,黄一杰,王正平. 钢管约束再生混凝土轴压试验研究[J]. 建筑结构学报, 2011, 32(6): 92-98 |
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| 作者姓名： | 肖建庄 杨洁 黄一杰 王正平 |
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| 作者单位： | 1.同济大学 建筑工程系， 上海 200092; 2.上海市第五建筑有限公司, 上海 200062 |
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| 基金项目： | 教育部新世纪人才支持计划项目，国家"十一五"科技支撑计划项目 |
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| 摘 要： | 以再生粗骨料取代率为试验主要研究参数，完成了15个钢管约束再生混凝土圆柱试件的轴压试验，分析了试件的受压破坏特性、轴向荷载-轴向应变关系以及约束再生混凝土的横向变形系数变化规律。试验和分析结果表明：钢管约束再生混凝土主要破坏形态为试件中部鼓曲，核心再生混凝土发生斜剪破坏；钢管约束再生混凝土与约束普通混凝土的受力过程基本相同，分为弹性和塑性发展阶段；钢管约束使核心再生混凝土强度得到明显提高，变形性能得到改善；再生粗骨料取代率变化对钢管约束再生混凝土的横向变形系数影响不大；钢管再生混凝土轴压极限荷载随着再生粗骨料取代率的增加而降低。最后根据试验数据拟合了钢管约束再生混凝土应力-应变关系表达式。图8表2参12
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| 关 键 词： | 钢管混凝土 约束 再生混凝土 轴压试验 |
Experimental study on recycled concrete confined by steel tube under axial compression |
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| XIAO Jianzhuang,YANG Jie,HUANG Yijie,WANG Zhengping. Experimental study on recycled concrete confined by steel tube under axial compression[J]. Journal of Building Structures, 2011, 32(6): 92-98 |
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| Authors: | XIAO Jianzhuang YANG Jie HUANG Yijie WANG Zhengping |
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| Affiliation: | Department of Building Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | Based on the tests of 15 recycled concrete specimens confined by steel tube with different recycled coarse aggregate replacement percentages under axial compression,this paper investigates the failure feature,axial force-longitudinal deformation relationship and variation rule of lateral deformation ratio of the test specimens.It is found that the bulge in the middle of the specimen is the main failure phenomenon.The core concrete shows diagonal shearing failure.Similar to the normal concrete filled steel t... |
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| Keywords: | steel tube filled with concrete recycled concrete confinement axial compression test |
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