| 后张预应力孔道对桥梁横截面力学特性影响 |
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| 引用本文： | 邢志明,邓雪涛,曾德荣.后张预应力孔道对桥梁横截面力学特性影响[J].重庆交通大学学报(自然科学版),2008,27(Z1). |
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| 作者姓名： | 邢志明 邓雪涛 曾德荣 |
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| 作者单位： | 1. 中铁十七局,河北,石家庄,050016
2. 重庆交通大学,重庆,400074 |
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| 摘 要： | 从PC桥梁力学行为入手,通过数值分析的方法,分析PC桥在不同横向受力状态下箱梁截面应力分布的规律及受力特性,研究预应力孔道对PC桥梁截面受力特性的影响,从而为该类桥梁箱梁开裂等问题的对策研究提供理论依据。
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| 关 键 词： | 后张预应力 PC(预应力混凝土) 截面受力特性 数值分析 |
Study on Influences of Post-Tensioning Prestress Holes on Mechanical Characteristics of Bridge Cross-Section |
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| XING ZHi-ming,DENG Xue-tao,ZENG De-rong.Study on Influences of Post-Tensioning Prestress Holes on Mechanical Characteristics of Bridge Cross-Section[J].Journal of Chongqing Jiaotong University,2008,27(Z1). |
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| Authors: | XING ZHi-ming DENG Xue-tao ZENG De-rong |
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| Institution: | XING ZHi-ming1,DENG Xue-tao2,ZENG De-rong2(1.17th Bureau of China Railway,Hebei Shijiazhuang 050016,China,2.Chongqing Jiaotong University,Chongqing 400074,China) |
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| Abstract: | In terms of behavioral mechanics of PC bridge,the numerical analysis method is used to analyze the stress distribution rules and mechanical characteristics of box girder section of PC bridge under different horizontal forces.The influences of post-tensioning prestress holes on mechanical characteristics of bridge cross-section are also studied,which offers theoretic basis to study the cracking problems of box girder of this kind of bridge. |
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| Keywords: | post-tensioning prestress prestressed concrete mechanical characteristics of cross-section numerical analysis |
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