| 波形钢腹板PC组合箱梁桥腹板平板长度的参数分析 |
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| 引用本文： | 牛黎明,杨霞林.波形钢腹板PC组合箱梁桥腹板平板长度的参数分析[J].平顶山工学院学报,2009,18(3). |
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| 作者姓名： | 牛黎明 杨霞林 |
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| 作者单位： | 兰州交通大学土木工程学院,甘肃兰州,730070 |
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| 摘 要： | 采用混合单元建立波形钢腹板体外预应力混凝土简支箱梁桥的空间有限元计算模型,对腹板剪应力极值、主应力极值和箱梁顶板、底板的正应力极值、主应力极值进行了分析,研究了波形钢腹板平板长度对该种结构受力性能的影响.计算结果表明波形钢腹板预应力混凝土组合箱梁腹板平板长度与波高之比的合理范围是1.67～2.67.分析结果可以为波形钢腹板箱梁桥的合理设计提供参考.
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| 关 键 词： | 桥梁工程 波形钢腹板 组合箱梁 空间有限元 几何参数 |
Parameter analysis of plate web length of prestressed concrete composite box girder bridge with corrugated steel webs |
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| NIU Li-ming,YANG Xia-lin.Parameter analysis of plate web length of prestressed concrete composite box girder bridge with corrugated steel webs[J].Journal of Pingdingshan Institute of Technology,2009,18(3). |
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| Authors: | NIU Li-ming YANG Xia-lin |
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| Affiliation: | NIU Li-ming,YANG Xia-lin (College of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China) |
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| Abstract: | A 3D finite element model of an externally prestressed concrete simple-supported composite box-girder bridge with corrugated steel webs is established by means of the composite element method.By the proposed model,the extreme value of shear stress and principal stress of web and the extreme value of normal stress and principal stress of superior margin and slow margin of box girder roof are analyzed,the influence of plate web length of steel webs on the mechanical behaviors of the structure are researched.C... |
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| Keywords: | bridge engineering corrugated steel webs composite box girder 3D finite element geometrical parameter |
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