| 泵送混凝土浇筑大型箱梁的芯模上浮力试验研究 |
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| 引用本文： | 毛天庆. 泵送混凝土浇筑大型箱梁的芯模上浮力试验研究[J]. 贵州工业大学学报(自然科学版), 2008, 37(5) |
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| 作者姓名： | 毛天庆 |
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| 作者单位： | 贵州省交通科学研究院检测中心,贵州贵阳,550008 |
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| 摘 要： | 在预制箱梁的混凝土浇筑过程中,芯模的上浮问题一直是困扰施工生产的技术难题。结合实际工程,分析了泵送混凝土浇筑箱梁上浮力的影响因素,介绍了一种测试混凝土上浮力的简单试验方法和试验结果,讨论了混凝土浇筑箱梁时浇筑高度、速度、有无振捣对上浮力大小的影响。
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| 关 键 词： | 泵送混凝土 箱梁 芯模 上浮力 |
Research on Mandrel Uplifting Force Experiment of Pumping Concrete Pouring Large-sized Box Girder |
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| MAO Tian-qing. Research on Mandrel Uplifting Force Experiment of Pumping Concrete Pouring Large-sized Box Girder[J]. Journal of Guizhou University of Technology(Natural Science Edition), 2008, 37(5) |
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| Authors: | MAO Tian-qing |
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| Abstract: | In the concrete pouring process of precasting concrete box girders,the uplifting of mandrel has always been a big technical problem for construction.Combining practical projects the paper analyzes the influence factors of pumping concrete pouring box girder's uplifting force,introduces a simple method for testing concrete's uplifting force as well as the testing result,and discusses the effect of height,speed and concrete vibrating on the strength of uplifting force during the process of concrete pouring bo... |
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| Keywords: | pumping concrete box girder mandrel uplifting force |
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