| 钢管混凝土拱肋极限承载力参数分析 |
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| 引用本文： | 巩美杰1,许 会2. 钢管混凝土拱肋极限承载力参数分析[J]. 中州煤炭, 2018, 0(12): 113-117. DOI: 10.19389/j.cnki.1003-0506.2018.12.026 |
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| 作者姓名： | 巩美杰1 许 会2 |
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| 作者单位： | （1.南京市城市与交通规划设计研究院股份有限公司，江苏 南京 210008； 2.中冶华天南京工程技术有限公司，江苏 南京 201117） |
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| 摘 要： | 为探索不同参数对结构非线性性能与极限承载力的影响，分别对哑铃型钢管混凝土拱肋和单圆管拱肋进行了非线性极限承载力参数分析。分析的参数主要有矢跨比、长细比、含钢率、拱肋截面形式、拱轴线形。结果表明:哑铃型拱肋与单圆管拱肋在受力性能方面有很高的相似性，与单圆管拱肋相比哑铃型拱具有更高的极限承载能力和更好的荷载适应能力。
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| 关 键 词： | 钢管混凝土 极限承载力 双重非线性 参数分析 |
Parameter analysis of ultimate bearing capacity of concrete filled steel tube arch ribs |
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| Gong Meijie1,Xu Hui2. Parameter analysis of ultimate bearing capacity of concrete filled steel tube arch ribs[J]. Zhongzhou Coal, 2018, 0(12): 113-117. DOI: 10.19389/j.cnki.1003-0506.2018.12.026 |
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| Authors: | Gong Meijie1 Xu Hui2 |
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| Affiliation: | （1.Nanjing Institute of City & Transport Planning Co.，Ltd.，Nanjing 210008，China；2.Huatian Nanjing Engineering & Technology Corporation，MCC，Nanjing 201117，China） |
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| Abstract: | In order to discuss the effect of different parameters on the nonlinear performance and ultimate bearing capacity of the structure，the parametric analysis of nonlinear ultimate bearing capacity of the dumbbell-shaped CFST arch rib and the single tube CFST arch rib was carried out.Main parameters included the ratio of rise to span，slenderness ratio，steel ratio，loading patterns，section forms of arch rib and arch axis linetype.The results showed that the variation of load-carrying capacity of dumbbell-shaped CFST arches were similar to those of the single tube CFST arches.Dumbbell-shaped arches had higher ultimate load capacity and better load adaptability compared to the single tube CFST arches. |
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| Keywords: | concrete filled steel tubular（CFST） ultimate load-carrying capacity dual nonlinear parameter analysis |
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