| 配矩形螺旋箍筋型钢高强混凝土短柱轴压性能试验研究 |
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| 引用本文： | 柯晓军,伍小萍,陈宗平,杨震.配矩形螺旋箍筋型钢高强混凝土短柱轴压性能试验研究[J].实验力学,2016(5):617-623. |
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| 作者姓名： | 柯晓军 伍小萍 陈宗平 杨震 |
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| 作者单位： | 1. 广西大学土木建筑工程学院工程防灾与结构安全教育部重点实验室,南宁530004;广西防灾减灾与工程安全重点实验室,南宁530004;2. 广西大学土木建筑工程学院工程防灾与结构安全教育部重点实验室,南宁,530004 |
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| 基金项目： | 国家自然科学基金资助项目(51578163;51508112)，广西自然科学基金资助项目(2015GXNSFBA139210)，广西科学研究与技术开发计划项目(桂科转14124005-1-2)，广西教育厅中青年教师基础能力提升项目(KY2016YB027)，广西重点实验室系统性研究项目资助(2016ZDX02) |
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| 摘 要： | 为研究配矩形螺旋箍筋型钢高强混凝土短柱轴压性能,以混凝土强度、体积配箍率和配箍形式为变化参数设计6个试件进行轴心受压加载试验。试验结果表明,所有试件的破坏形态和荷载-轴向位移曲线相似,配螺旋箍筋的试件变形性能要优于配普通箍筋试件,配矩形螺旋箍筋的试件极限承载力随混凝土强度、体积配箍率的增加而提高。在试验基础上,采用基于叠加理论的计算方法对配矩形螺旋箍筋型钢高强混凝土短柱轴压承载力进行计算,给出了相关设计建议,研究结果可为配矩形螺旋箍筋型钢高强混凝土短柱的工程应用提供科学依据。
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| 关 键 词： | 型钢混凝土 高强混凝土 螺旋箍筋 轴压试验 极限承载力 |
Experimental Study of Axial Compression Performance of SRHC Short Column Confined by Square Spiral Stirrup |
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| Abstract: | In order to study the axial compression performance of steel reinforced high-strength concrete (SRHC) short columns confined by square spiral stirrups,taking concrete strength,stirrup volume ratio and stirrup type as variable parameters,six specimens were designed for axial compression experiment.Test results indicate that all SRHC specimens' failure mode is similar to load-axial displacement curves;the deformation performance of SRHC specimens with square spiral stirrups is better than that of SRHC specimen with normal stirrups;the ultimate bearing capacity of SRHC specimens with square spiral stirrups increases along with the increase of concrete strength and stirrup volume ratio.Based on experimental results,the axial compression bearing capacity calculation of SRHC short column specimens with square spiral stirrups was carried out based on superposition theory;relative design suggestion was presented.Above results may provide scientific evidence for engineering application of steel reinforced high-strength concrete short column confined by square spiral stirrups. |
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| Keywords: | steel reinforced concrete high-strength concrete spiral stirrup axial compression test ultimate bearing capacity |
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