| 钢管混凝土拱空间受力性能分析 |
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| 引用本文： | 陈宝春,韦建刚,林嘉阳.钢管混凝土拱空间受力性能分析[J].福州大学学报(自然科学版),2006,34(5):732-738. |
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| 作者姓名： | 陈宝春 韦建刚 林嘉阳 |
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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： | 福建省科技攻关项目;交通部西部交通建设科技项目 |
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| 摘 要： | 以钢管混凝土单肋模型拱和双肋模型拱为分析对象,以通用有限元程序为分析手段,对钢管混凝土拱空间受力进行了双重非线性分析.分析结果表明,采用该计算方法计算的结果能基本反映结构的受力性能,尤其是双肋拱.在空间荷载作用下,几何非线性影响在钢管混凝土拱空间受力行为中的影响上升;分枝点屈曲临界荷载几乎不随横向力的变化而变化,稳定极限承载力随横向力的增大而明显降低.
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| 关 键 词： | 钢管混凝土 肋拱 空间 有限元 稳定极限承载力 非线性 |
| 文章编号： | 1000-2243(2006)05-0732-07 |
| 修稿时间： | 2005年11月4日 |
Analysis of behavior of concrete filled steel tubular arches under spatial loads |
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| CHEN Bao-chun,WEI Jian-gang,LIN Jia-yang.Analysis of behavior of concrete filled steel tubular arches under spatial loads[J].Journal of Fuzhou University(Natural Science Edition),2006,34(5):732-738. |
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| Authors: | CHEN Bao-chun WEI Jian-gang LIN Jia-yang |
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| Institution: | (College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350002,China) |
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| Abstract: | Using general finite element software,the dual nonlinearity analyses for concrete filled steel tubular(CFST) arches are carried out,taking both the CFST model arches with a single rib and with double ribs as the case studies.It can be seen from the analyses that the calculation results from FEM can reflect the basic behaviors of the CFST arches subjected to spatial loads,especially for the arch with double ribs.Under the spatial loads,the influence of geometric nonlinearity of CFST arches on its(behaviors) will increase up.With the increase of the lateral loads,the stability ultimate load will increase while the elastic buckling load almost has no change. |
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| Keywords: | CFST tuber arch space FEM stability load-carrying capacity non-linearity |
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