| 下承式钢管混凝土刚架系杆拱桥拱脚有限元应力分析 |
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| 引用本文： | 彭桂瀚,陈宝春,孙潮.下承式钢管混凝土刚架系杆拱桥拱脚有限元应力分析[J].福州大学学报(自然科学版),2007,35(1):85-88. |
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| 作者姓名： | 彭桂瀚 陈宝春 孙潮 |
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| 作者单位： | 福州大学土木工程学院,福建,福州,350002 |
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| 基金项目： | 福建省重大科技基金资助项目(2003F007) |
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| 摘 要： | 采用三维块体单元,进行了大汾北水道特大桥拱脚结点空间有限元分析.计算结果表明:拱脚结点以纵桥向受压为主,结点内部应力分布较均匀,总体受力合理,满足设计要求.但施工中应注意刚度突变处以及预应力锚点等应力集中区域的施工质量,并建议进行局部钢筋网的加强,便于应力的分散.
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| 关 键 词： | 钢管混凝土 拱桥 刚架系杆拱 拱脚 有限元 |
| 文章编号： | 1000-2243(2007)01-0085-04 |
| 修稿时间： | 2006年1月4日 |
FEM stress analysis of springing joint for CFST and rigid frame tied through arch bridge |
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| PENG Gui-han,CHEN Bao-chun,SUN Chao.FEM stress analysis of springing joint for CFST and rigid frame tied through arch bridge[J].Journal of Fuzhou University(Natural Science Edition),2007,35(1):85-88. |
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| Authors: | PENG Gui-han CHEN Bao-chun SUN Chao |
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| Institution: | (College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350002,China) |
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| Abstract: | The spatial FEM analysis of springing joint for Dafenbei Shuidao Bridge is carried out in this paper by using 3D solid element.The results show that the main inner force in springing is compressed stress which distributing uniform.It means that the design of this bridge is reasonable.But the local structure reinforcing should be placed in the places where the rigidity changed abruptly,in order to disperse stress. |
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| Keywords: | concrete filled steel tube arch bridge tied rigid frame arch springing finite element |
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