| PC箱梁预应力张拉缺陷及静载试验研究 |
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| 引用本文： | 马其博,刘永前,李勇.PC箱梁预应力张拉缺陷及静载试验研究[J].石家庄铁道学院学报,2008,21(4). |
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| 作者姓名： | 马其博 刘永前 李勇 |
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| 作者单位： | [1]石家庄铁道学院大型结构健康诊断与控制研究所,河北石家庄050043 [2]北京轨道交通建设有限公司,北京101100 |
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| 摘 要： | PC箱梁由于自身的截面特点在桥梁工程中被广泛采用,对其施工过程中预应力张拉容易出现的质量缺陷及原因做了分析,然后以一预应力施加超限的箱梁为例,介绍了静载试验及其承载力评估分析过程,了解了其实际工作状态,为类似工程提供参考价值.
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| 关 键 词： | PC箱梁 预应力张拉 静载试验 承载力评估 |
Study of Quality Flaw and Dead Load Experimental of Pre-stressed Concrete Box Girders |
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| Ma Qibo,Liu Yongqian,Li Yong.Study of Quality Flaw and Dead Load Experimental of Pre-stressed Concrete Box Girders[J].Journal of Shijiazhuang Railway Institute,2008,21(4). |
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| Authors: | Ma Qibo Liu Yongqian Li Yong |
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| Institution: | Ma Qibo1,Liu Yongqian1,Li Yong2(1.Research Institute of Large Structure Health Diagnosis , Control,Shijiazhuang Railway Institute,Shijiazhuang 050043,China,2.Beijing Rail Transport Construction Co.,Ltd,Beijing 101100,China) |
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| Abstract: | Pre-stressed concrete box girders are widely used in the bridge engineering owing to section characteristic.The quality flaw and its reason in pre-tension of construction process are analyzed in this paper.With a pre-tensioned box girder with quality flaw as a practical example,dead load test and supporting capacity assessment are introduced,and its practical work condition is illustrated,which may provide reference for later similar projects. |
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| Keywords: | box girders quality flaw dead load test supporting capacity assessment |
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