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| 预应力混凝土连续箱梁桥温度裂缝分析 | |
| 引用本文： | 刘勇,麻文燕,梁甜甜.预应力混凝土连续箱梁桥温度裂缝分析[J].重庆交通大学学报(自然科学版),2008,27(Z1). |
| 作者姓名： | 刘勇 麻文燕 梁甜甜 |
| 作者单位： | 1. 贵州省公路桥梁工程总公司,贵州,贵阳,550001 2. 重庆工程职业技术学院,重庆,400037 3. 重庆交通大学土木建筑学院,重庆,400074 |
| 摘 要： | 预应力混凝土连续梁桥以其跨度大,截面受力性能好,施工方面快捷等原因,成为普遍采用的桥型之一。但是,这种桥型在其施工或营运阶段,会产生不同程度的温度裂缝。从温差形成的角度分析了预应力混凝土连续箱梁桥温度裂缝产生的原因,同时举例讨论了温度梯度模式的选取对就计算温度应力的影响。 |
| 关 键 词： | 预应力混凝土 裂缝 温度应力 温度梯度 |
Analysis on Temperature Crack of PC Continuous Box Girder Bridges |
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| LIU Yong,MA Wen-yan,LIANG Tian-tian.Analysis on Temperature Crack of PC Continuous Box Girder Bridges[J].Journal of Chongqing Jiaotong University,2008,27(Z1). | |
| Authors: | LIU Yong MA Wen-yan LIANG Tian-tian |
| Institution: | LIU Yong1,MA Wen-yan2,LIANG Tian-tian3(1.Guizhou Province Road & Bridge Engineering Group,Guizhou Guiyang 550001,China,2.Chongqing Vocational Institute of Engineering,Chongqing 400037,3.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China) |
| Abstract: | The PC continuous box girder bridge is popular,because of its big span,good force performance of box section,convenience and shortcut construction.However,this kind of bridges will generate cracks in different degrees in bridge construction or in service.The causes of generating cracks are analyzed in terms of temperature differences.At the same time,an example is taken to discuss the influence different temperature grads modes make on the calculation of temperature stress. |
| Keywords: | pre-stressed concrete crack temperature stress temperature grads |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |