| 高性能混凝土与钢筋及纤维组合体长期变形试验研究 |
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| 引用本文： | 黄卫兰,陈程,陈灿明,陆采荣,唐崇钊.高性能混凝土与钢筋及纤维组合体长期变形试验研究[J].中南公路工程,2013(2):210-213. |
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| 作者姓名： | 黄卫兰 陈程 陈灿明 陆采荣 唐崇钊 |
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| 作者单位： | [1]南京水利科学研究院水利部水科学与水工程重点实验室,江苏南京210029 [2]江苏省苏科建设技术发展有限公司,江苏南京210008 |
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| 摘 要： | 以五河口特大桥主梁C60混凝土为对象，研究了高性能混凝土龄期及掺聚酯纤维和内置钢筋对长期变形的影响。试验结果表明，研制的C60混凝土早期强度和弹模较高、徐变度相对较低，可有效减小结构的预应力损失和桥梁的长期变形；试件内置钢筋和掺人纤维后组合体变形特征符合线性分析原理。
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| 关 键 词： | 混凝土 徐变 掺纤维 内置钢筋 |
Long-term Deformation Test Study on the Composite of HPC, Reinforcement and Fiber |
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| HUANG Weilan,CHEN Cheng,CHEN Canming,LU Cairong,TANG Chongzhao.Long-term Deformation Test Study on the Composite of HPC, Reinforcement and Fiber[J].Central South Highway Engineering,2013(2):210-213. |
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| Authors: | HUANG Weilan CHEN Cheng CHEN Canming LU Cairong TANG Chongzhao |
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| Institution: | 1. Key Laboratory of Water Science and Engineering, Ministry of Water Resources, Nanjing Hydraulic Research Institute, Nanjing, Jiangsu 210029, China; 2. Jiangsu Suke Construction Technology Inc. , Nanjing, Jiangsu 210005, China) |
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| Abstract: | The C60 concrete of Wuhekou Grand Bridge girder is the object of study. The effect of HPC age, mixed polyester fibers and built-in reinforcements on long-term deformation is studied. The test results show ： The early strength and Young＇ s modulus of developed C60 concrete are higher and its spe- cific creep lower, and it can effectively reduces the structural prestress loss and the bridge＇ s long-term deformation; After placing the built-in reinforcements and mixing the fibers in the test specimens, the composite＇ s deformation characteristics are accordant with the principle of linear analysis. |
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| Keywords: | concrete creep mixed fiber built-in reinforcement |
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