| 温度引起的梯形轨枕预应力损失的成因与控制 |
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| 引用本文： | 杜昕.温度引起的梯形轨枕预应力损失的成因与控制[J].铁道建筑技术,2014(9):115-118. |
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| 作者姓名： | 杜昕 |
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| 作者单位： | 中铁十四局集团:化京中铁房山桥梁有限公司,北京102400 |
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| 摘 要： | 通过研究和分析预应力混凝土预应力损失产生的原因,结合梯形轨枕的张拉工艺合理设置测量装置,有针对性地实测在温度变化下梯形轨枕预应力张拉值的变化,并对数据进行分析,寻找到有效减轻温度对预应力损失影响的方法及在实际生产中的控制措施,以供施工企业及有关单位参考。
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| 关 键 词： | 预应力损失 温度 梯形轨枕 |
Cause and Control of Loss of Presstress of Trapezoidal Sleeper Caused by Temperature |
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| Du Xin.Cause and Control of Loss of Presstress of Trapezoidal Sleeper Caused by Temperature[J].Railway Construction Technology,2014(9):115-118. |
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| Authors: | Du Xin |
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| Institution: | Du Xin (China Railway 14^th Bureau Group Co. Ltd. , Beijing 102400, China) |
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| Abstract: | Through research and analysis of the causes of loss of prestress of prestressed concrete,the measuring device is set reasonably in light of the trapezoidal sleeper tensioning process.The changes of the prestressed tension values of trape-zoidal sleeper under temperature change were measured pertinently,and the data were analyzed to find the effective methods to reduce the influence of temperature on the loss of prestress and the control measures in the actual production so as to pro-vide the reference for the construction enterprises and the relevant units. |
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| Keywords: | loss of presstress temperature trapezoidal sleeper |
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