| 预应力混凝土T梁的预应力损失 |
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| 引用本文： | 陈博,刘德坤,王科.预应力混凝土T梁的预应力损失[J].中南公路工程,2012(3):241-244. |
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| 作者姓名： | 陈博 刘德坤 王科 |
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| 作者单位： | [1]湖南省浏醴高速公路建设开发有限公司,湖南长沙410329 [2]湖南大学工程力学系,湖南长沙410082 |
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| 摘 要： | 预应力损失对预应力混凝土桥梁的结构性能有重要的影响。T梁是先简支后连续桥梁最常见的预制构件,在高速公路建设中得到广泛应用。定量地了解该类构件的预应力损失对施工质量控制有指导意义。以30 m T梁为例,根据规范的相关公式计算预应力损失,并对影响预应力损失的因素进行定量讨论。
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| 关 键 词： | 预应力损失 预应力混凝土构件 T梁 先简支后连续桥梁 |
Prestress Loss of Prestressed Concrete T-shaped Beams |
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| CHEN Bo,LIU Dekun,WANG Ke.Prestress Loss of Prestressed Concrete T-shaped Beams[J].Central South Highway Engineering,2012(3):241-244. |
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| Authors: | CHEN Bo LIU Dekun WANG Ke |
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| Institution: | 1.Hunan Liuli Expressway Construction and Development Co.Ltd,Changsha,Hunan 410329,China;2.Department of Engineering Mechanics,Hunan University,Changsha,Hunan 410082,China) |
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| Abstract: | Prestress loss has an important effect on the structural performance of prestressed concrete bridges.T-shaped beams are the most common precast members which are widely used in the expressway construction.It has guiding significance to the construction quality control understanding the prestress loss of this kind of members.In this paper,the prestress loss of T-shaped beam with a length of 30m is calculated according to the related formulas from the code and the factors influencing the prestress loss are discussed quantitatively. |
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| Keywords: | prestress loss prestressed concrete member T-shaped beam simply-supported continuous bridge |
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