| 预应力锚索差异分步张拉法钢绞线实测伸长量误差分析 |
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| 引用本文： | 刘士民.预应力锚索差异分步张拉法钢绞线实测伸长量误差分析[J].城市道桥与防洪,2012(7):60-61,73,8,9. |
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| 作者姓名： | 刘士民 |
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| 作者单位： | 中交一公局厦门工程有限公司,福建厦门,361021 |
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| 摘 要： | 多单元预应力锚索在张拉过程中,正式张拉前应进行预张拉。预张拉完成对钢绞线进行锁定,钢绞线锁定时由于预应力损失,会引起实测伸长量误差。该文就该误差的计算进行了阐述,并在实测伸长量剔除该误差值。
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| 关 键 词： | 预应力锚索张拉 预张拉锁定 预应力损失 实测伸长量误差分析计算 |
Analysis on Measured Elongation Error of Steel Strand by Prestressed Anchor Cable Difference Step-by-step Stretching Method |
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| liu Shimin.Analysis on Measured Elongation Error of Steel Strand by Prestressed Anchor Cable Difference Step-by-step Stretching Method[J].Urban Roads Bridges & Flood Control,2012(7):60-61,73,8,9. |
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| Authors: | liu Shimin |
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| Abstract: | The multi-unit prestressed anchor cable must be pre-stretched before the formal stretching in its process. The completion of the pre-stretching locks the steel strand, which will cause the measured elongation error because of the prestressing loss. The article sets forth the calculation of this error, and eliminates this error value from the measured elongation. |
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| Keywords: | prestressed anchor cable stretching lock of pre-stretching prestressing loss analysis and calculation of measured elongation error |
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