箱梁预应力瞬时损失的分析与控制 |
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引用本文: | 杨全军.箱梁预应力瞬时损失的分析与控制[J].科技资讯,2010(1):57-59. |
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作者姓名: | 杨全军 |
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作者单位: | 中铁电化局西铁工程公司涿州制梁场,河北涿州,072759 |
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摘 要: | 在铁路客运专线900t箱梁的制造中,预应力施工是影响箱梁线形控制的最重要因素。该文从管道摩阻、锚具变形和力筋回缩、混凝土的弹性压缩等方面对箱梁的预应力瞬时损失进行了分析,并在施工过程中验证了控制措施的有效性。
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关 键 词: | 预应力 瞬时损失 客运专线 箱梁 线形控制 |
Analysis and Control on Prestress Instantaneous-Loss of Box-Girder |
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Abstract: | In the manufacture of 900t box-girder of Passenger Dedicated Line, prestressed construction is the top factor which affects the linear control of box-girder.The paper analysis the instraneous-loss from tube friction,distortion of anchor and shrink of steel strand,elastic compression of concrete,and so on.At the same time,it acknowledged the validity of construction control measures. |
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Keywords: | Prestressed Instantaneous-loss PDL Box-Girder Linear Control |
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