| 非正常情况下预应力张拉若干问题的处理 |
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| 引用本文： | 谢涛,姜莉.非正常情况下预应力张拉若干问题的处理[J].建筑技术,2003,34(12):926-928. |
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| 作者姓名： | 谢涛 姜莉 |
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| 作者单位： | 深圳市天健(集团)股份有限公司,518034 |
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| 摘 要： | 预应力张拉施工时，由于受客观条件限制，或张拉前的工序有误而导致实际伸长值与计算伸长值相差较大的非正常情况时，应采取相应操作步骤，并对摩擦系数、张拉控制应力、伸长值等重要参数的取值根据实际情况加以计算和调整，作出正确判断，以确保张拉质量。
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| 关 键 词： | 摩擦系数 超张拉 伸长值 |
| 文章编号： | 1000-4726(2003)12-0926-03 |
| 修稿时间： | 2003年8月5日 |
SEVERAL ISSUES IN PRESTRESSED STRETCHING UNDER ABNORMAL CONDITIONS |
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| XIE Tao JIANG Li.SEVERAL ISSUES IN PRESTRESSED STRETCHING UNDER ABNORMAL CONDITIONS[J].Architecture Technology,2003,34(12):926-928. |
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| Authors: | XIE Tao JIANG Li |
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| Affiliation: | XIE Tao JIANG Li |
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| Abstract: | Under abnormal conditions caused by limitation of ex-ternal situation,or wrong working procedure before tension in the construction of prestressed stretching,the difference between the actu-al extension value and calculated extension value is big.Correspond-ing operation steps should be taken and the calculation and adjust-ment of important parameters such as coefficient of friction,stretching control stress extension value should be done according to the actual condition so as to guarantee correct judgment and qualified stretching. |
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| Keywords: | coefficient of friction ultra stretching extension value |
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