| 蝴蝶拱桥扁平钢箱弯梁的约束扭转分析 |
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| 引用本文： | 黄海云,刘爱荣,张俊平,赵新生. 蝴蝶拱桥扁平钢箱弯梁的约束扭转分析[J]. 暨南大学学报(自然科学与医学版), 2010, 31(1) |
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| 作者姓名： | 黄海云 刘爱荣 张俊平 赵新生 |
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| 作者单位： | 广州大学,土木工程学院,广东,广州,510006 |
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| 基金项目： | 广东省自然科学基金项目(7001897);;建设部科技项(2007-K3-10);;广州市建设科技计划项目(200617) |
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| 摘 要： | 以我国首座已建成通车的蝴蝶拱桥为背景,基于乌曼斯基约束扭转的弹性薄壁梁理论及薄壁箱梁的剪力流理论,采用考虑翘曲位移自由度的空间杆系有限元分析模型,结合静载试验实测数据,对该桥单箱多室截面的扁平钢箱弯梁进行了考虑约束扭转效应的空间受力分析.计算结果表明,在蝴蝶拱桥结构中,扁平钢箱弯梁的约束扭转效应比较显著,在设计中应加以考虑.
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| 关 键 词： | 蝴蝶拱桥 扁平钢箱梁 约束扭转 有限元法 |
Restraint torsion analysis for curved flat steel box girder of butterfly arch bridge |
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| HUANG Hai-yun,LIU Ai-rong,ZHANG Jun-ping,ZHAO Xin-sheng. Restraint torsion analysis for curved flat steel box girder of butterfly arch bridge[J]. Journal of Jinan University(Natural Science & Medicine Edition), 2010, 31(1) |
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| Authors: | HUANG Hai-yun LIU Ai-rong ZHANG Jun-ping ZHAO Xin-sheng |
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| Affiliation: | School of Civil Engineering;Guangzhou University;Guangzhou 510006;China |
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| Abstract: | Based on the Zhongshan butterfly-shape arch bridge which is the first butterfly arch and had opened to traffic in our country,according to the elastic thin-walled beam theories of Wumnansji and shear flow,adopting the spatial beam finite element mode which including the warping displacement freedom,comparing with the measured data of static loading test,a study about the curved flat steel box girder with the section of single box and several cell of this bridge was conducted with consideration of the effect... |
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| Keywords: | butterfly arch bridge flat steel box girder restraint torsion finite element method |
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