| 高温后高性能混凝土和细晶粒钢筋间粘结性能 |
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| 引用本文： | 肖建庄,黄均亮,赵勇.高温后高性能混凝土和细晶粒钢筋间粘结性能[J].同济大学学报(自然科学版),2009,37(10). |
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| 作者姓名： | 肖建庄 黄均亮 赵勇 |
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| 作者单位： | 1. 同济大学,建筑工程系,上海,200092;同济大学,土木工程防灾国家重点实验室,上海,200092
2. 同济大学,建筑工程系,上海,200092 |
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| 基金项目： | 教育部留学回国人员科研启动基金，国家"八六三"高技术研究发展计划资助项目 |
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| 摘 要： | 配制了C100高性能混凝土,制作了标准立方体试块,并选用500 MPa级细晶粒钢筋制作了中心拔出粘结试件.分别对立方体试块和拔出试件进行了200,400,600,800 ℃的高温试验,完成了高温后的抗压强度试验和拔出粘结试验.基于试验结果,分析了高温作用对高性能混凝土抗压强度和粘结强度的影响,研究了高温后高性能混凝土抗压强度和粘结强度的关系,并通过与普通混凝土高温后粘结性能的对比,分析了高温后高性能混凝土和细晶粒钢筋间粘结性能的特点.
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| 关 键 词： | 高温后 高性能混凝土 细晶粒钢筋 粘结 拔出试验 |
On Bond Behavior Between HPC and Fine Grain Steel Bar After Elevated Temperatures |
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| XIAO Jianzhuang,HUANG Junliang and ZHAO Yong.On Bond Behavior Between HPC and Fine Grain Steel Bar After Elevated Temperatures[J].Journal of Tongji University(Natural Science),2009,37(10). |
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| Authors: | XIAO Jianzhuang HUANG Junliang and ZHAO Yong |
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| Institution: | Department of Building Engineering,Tongji University,Shanghai 200092,China;State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China;Department of Building Engineering,Tongji University,Shanghai 200092,China;Department of Building Engineering,Tongji University,Shanghai 200092,China |
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| Abstract: | Standard cube compressive specimens and central pull-out test specimens are cast with C100 high-performance concrete(HPC). In the pull-out test specimen,fine grain steel bars with strength grade of 500MPa are applied. After being exposed to 200 ℃ ,400 ℃,600 ℃ and 800 ℃ ,the compressive strength of the cube specimens are tested and the load-slip curves between HPC and fine grain steel bars are recorded. Based on the test results, the bond behavior between HPC and fine grain steel bars is analyzed. Finally, the difference of the post-fire bond behavior between normal concrete and high-performance concrete is discussed. |
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| Keywords: | elevated temperature high-performance concrete(HPC) fine grain steel bar bond pull-out test |
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