| 再生混合钢筋混凝土短柱的轴压性能试验 |
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| 引用本文： | 吴波,刘伟,刘琼祥,许喆. 再生混合钢筋混凝土短柱的轴压性能试验[J]. 工程抗震与加固改造, 2010, 32(3): 81-85,98 |
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| 作者姓名： | 吴波 刘伟 刘琼祥 许喆 |
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| 作者单位： | 华南理工大学亚热带建筑科学国家重点实验室,广东,广州510640;深圳市建筑设计研究总院,广东,深圳518000 |
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| 摘 要： | 开展了8根再生混合钢筋混凝土短柱的轴压试验,考察了废弃混凝土类型和混合比对试件荷载-变形曲线及抗压承载力的影响趋势,探讨了现行规范有关短柱抗压承载力的计算方法对于再生混合钢筋混凝土短柱的适用性。研究结果表明:(1)混合比相近时,节段型再生混合短柱的抗压承载力大于块体型再生混合短柱;(2)现浇混凝土抗压强度大于废弃混凝土相应强度时,再生混合短柱的抗压承载力随混合比增大而降低;(3)节段型再生混合短柱的抗压承载力可直接采用现行规范计算,块体型再生混合短柱则需再乘以0.9左右的折减系数。
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| 关 键 词： | 废弃混凝土 钢筋混凝土 短柱 抗压承载力 |
Test on Axial Behavior of Reinforced Concrete Columns Filled with Demolished Concrete Segment/Lump |
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| Wu Bo,Liu Wei,Liu Qiong-xiang,Xu Zhe. Test on Axial Behavior of Reinforced Concrete Columns Filled with Demolished Concrete Segment/Lump[J]. Earthquake Resistant Engineering and Retrofitting, 2010, 32(3): 81-85,98 |
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| Authors: | Wu Bo Liu Wei Liu Qiong-xiang Xu Zhe |
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| Affiliation: | Wu Bo1,Liu Wei1,Liu Qiong-xiang2,Xu Zhe1(1.State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China,2.Shenzhen General Institute of Architectural Design and Research,Shenzhen 518000,China) |
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| Abstract: | Eight RC stub columns filled with demolished concrete segment/lump or cast-in-situ concrete are tested under axial loading.The influences of the type of demolished concrete and the mix ratio of demolished concrete on the measured load-deformation curves and axial load bearing capacities of specimens are investigated,and the applicability of the method in current design code for calculation of the axial load bearing capacity of stub columns filled with demolished concrete segment/lump is discussed.Test resul... |
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| Keywords: | demolished concrete reinforced concrete stub column axial load bearing capacity |
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