| 钢管混凝土组拼管拱面外屈曲参数分析 |
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| 引用本文： | 黄文金,;陈宝春.钢管混凝土组拼管拱面外屈曲参数分析[J].福建建筑高等专科学校学报,2008(1):13-16. |
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| 作者姓名： | 黄文金 ;陈宝春 |
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| 作者单位： | [1]福建农林大学交通学院,福建福州350002; [2]福州大学土木工程学院,福建福州350002 |
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| 基金项目： | 福建省教育厅B类科技基金资助项目（JB04123）;福建农林大学青年教师科研基金资助项目（05A10） |
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| 摘 要： | 以福鼎山前大桥空间有限元模型为基础，分析了影响钢管混凝土组拼管拱面外屈曲的主要参数，包括横撑布置形式、横撑刚度、拱脚约束情况、截面含钢率和混凝土弹性模量。有限元分析结果表明，横撑布置形式、横撑刚度和截面含钢率对钢管混凝土组拼管拱面外屈曲影响很大，但混凝土强度等级和拱脚约束对其影响很小。
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| 关 键 词： | 钢管混凝土 组拼拱 面外屈曲 参数分析 |
Parametric analysis on out-of-plane buckling of CFST build-up arch |
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| Affiliation: | Huang Wenjin, Chen Baochun ( 1. College of Traffic, Fujian Agriculture and Forestry University, Fuzhou 350002, China; 2. College of Civil Engineering, Fuzhou University, Fuzhou 350002, China) |
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| Abstract: | Based on the finite element spatial model of Shanqian Bridge in Fuding, Ningde, Fujian, parameters influencing out-of-plane buckling of concrete filled steel tubular （CFST） build-up arch, including arrangement and rigidity of lateral brace, fixing condition of arch spring, sectional steel ratio and Young＇s modulus of filled concrete were analyzed. FEM analysis result shows that sectional steel ratio, arrangement and rigidity of lateral brace greatly influence out-of-plane buckling of CFST build-up arch, that the influence of fixing condition of arch spring and Young＇s modulus of filled concrete on buckling can be neglected. |
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| Keywords: | CFST build-up arch out-of-plane buckling parametric analysis |
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