| 预应力钢箱梁的应力分析 |
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| 引用本文： | 赵颖,贾艳敏,林晓东.预应力钢箱梁的应力分析[J].东北林业大学学报,2009,37(10). |
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| 作者姓名： | 赵颖 贾艳敏 林晓东 |
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| 作者单位： | 1. 东北林业大学,哈尔滨,150040
2. 哈尔滨学院 |
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| 摘 要： | 根据预应力简支钢箱梁的受力特性,考虑预应力索与钢箱梁的相互作用,应用有限元软件ANSYS、MIDAS/Civil建立了预应力简支钢箱梁的有限元计算模型,有限元计算值与实测值吻合较好.采用有限元法对预应力钢箱梁跨中截面正应力进行了详细的分析,并对预应力索的不同布置形式及双折线索水平段长度变化对梁中应力分布的影响进行了讨论.
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| 关 键 词： | 预应力 钢箱梁 应力 预应力索的布置形式 |
Stress Analysis of Steel Box Girder with Prestressed Tendons |
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| Zhao Ying,Jia Yanmin,Lin Xiaodong.Stress Analysis of Steel Box Girder with Prestressed Tendons[J].Journal of Northeast Forestry University,2009,37(10). |
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| Authors: | Zhao Ying Jia Yanmin Lin Xiaodong |
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| Institution: | Zhao Ying,Jia Yanmin(College of Civil Engineering,Northeast Forestry University,Harbin 150040,P. R. China),Lin Xiaodong(Harbin Uiversity) |
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| Abstract: | A finite element model of simply supported steel box girder with prestressed tendons was established in terms of the mechanical characters and the interaction of tendons and girder using software ANSYS and MIDAS/Civil. The calculation results of the model were found to be in good agreement with the experimental data. The normal stress of steel box girder with prestressed tendons at mid-span was analysed in detail by the method of finite element. Factors affecting girder stress were discussed,such as cable l... |
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| Keywords: | Prestressing force Steel box girder Stress Cable layouts |
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