| 钢绞线张拉应力实用控制方法 |
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| 引用本文： | 林加惠,郭子雄,黄群贤.钢绞线张拉应力实用控制方法[J].华侨大学学报(自然科学版),2014,0(6):707-710. |
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| 作者姓名： | 林加惠 郭子雄 黄群贤 |
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| 作者单位： | 华侨大学 土木工程学院, 福建 厦门 361021 |
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| 基金项目： | 国家自然科学基金资助项目(51208219)；福建省泉州市科技计划项目(2010Z54)；福建省厦门市科技计划项目 |
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| 摘 要： | 提出一种钢绞线张拉应力实用控制方法,即采用扭力扳手拧紧螺栓,实现对钢绞线张拉和应力水平的控制.研究结果表明:张拉应力值可通过螺栓的拧紧力矩计算公式确定,扭矩系数取值通过试验确定.对完成张拉端锚固后的钢绞线张拉力值进行48 h连续监测,研究施工阶段钢绞线的张拉应力损失规律.
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| 关 键 词： | 结构加固 钢绞线 张拉应力 张拉应力损失 |
Study on the Practical Control Method of the Strand Tensioning Stress |
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| LIN Jia-hui,GUO Zi-xiong,HUANG Qun-xian.Study on the Practical Control Method of the Strand Tensioning Stress[J].Journal of Huaqiao University(Natural Science),2014,0(6):707-710. |
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| Authors: | LIN Jia-hui GUO Zi-xiong HUANG Qun-xian |
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| Institution: | College of Civil Engineering, Huaqiao University, Xiamen 361021, China |
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| Abstract: | A practical control method of applying the strand tensioning stress was proposed, in which the torque wrench is used to screw down the bolts, to exert and control the tensioning stress in the strand. The experimental results show that: tensioning stress can be calculated by the formula of the tightening torque and the torque coefficient is given by test. After the locking of the anchor end, the stress of strand was monitored continuously in 48 hours to study the tensioning stress loss. |
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| Keywords: | structural strengthening stranded tensioning stress tensioning stress loss |
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