| 脱粘对桁架式钢管混凝土拱肋刚度影响研究 |
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| 引用本文： | 涂光亚,颜东煌,邵旭东,易壮鹏.脱粘对桁架式钢管混凝土拱肋刚度影响研究[J].公路交通科技,2011,28(2):93-96,110. |
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| 作者姓名： | 涂光亚 颜东煌 邵旭东 易壮鹏 |
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| 作者单位： | 涂光亚,颜东煌,易壮鹏,TU Guangya,YAN Donghuang,YI Zhuangpeng(长沙理工大学,土木与建筑学院,湖南,长沙,410114);邵旭东,SHAO Xudong(湖南大学,土木工程学院,湖南,长沙,410082) |
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| 基金项目： | 湖南省教育厅科研项目，长沙理工大学土木与建筑学院重点学科基金资助项目 |
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| 摘 要： | 定量分析了钢管与核心混凝土之间的脱粘对桁架式钢管混凝土拱桥整体刚度的影响程度.基于完全脱粘计算模型,以一桁架式钢管混凝土悬臂梁为例,揭示了脱粘使桁架式钢管混凝土拱肋抗弯刚度降低的机理.采用有限元方法,以一桁架式钢管混凝土拱肋为例,分析了在完全脱粘情况下矢跨比、桁高、钢管壁厚和荷载作用方式对桁架式钢管混凝土拱肋刚度的影响...
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| 关 键 词： | 桥梁工程 脱粘 有限元法 刚度 桁架式 钢管混凝土拱肋 |
Effect of Debonding on Stiffness of Trussed Concrete-filled Steel Tubular Arch Rib |
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| TU Guangya,YAN Donghuang,SHAO Xudong,YI Zhuangpeng.Effect of Debonding on Stiffness of Trussed Concrete-filled Steel Tubular Arch Rib[J].Journal of Highway and Transportation Research and Development,2011,28(2):93-96,110. |
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| Authors: | TU Guangya YAN Donghuang SHAO Xudong YI Zhuangpeng |
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| Institution: | TU Guangya1,YAN Donghuang1,SHAO Xudong2,YI Zhuangpeng1(1.School of Civil Engineering and Architecture,Changsha University of Science and Technology,Changsha Hunan 410114,China,2.School of Civil Engineering,Hunan University,Changsha Hunan 410082,China) |
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| Abstract: | The effect of debonding between steel tube and centre concrete on the stiffness of trussed CFST arch bridge were analyzed quantitatively.Based on the calculation model of complete debonding,taken a trussed CFST cantilever beam for example,the mechanism of decreasing of bending stiffness of trussed CFST arch rib due to debonding was revealed.By using finite element method,taken a trussed CFST arch rib for example,the effect rule of rise-span ratio,height of truss,thickness of steel pipe wall,and action mode ... |
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| Keywords: | bridge engineering debonding finite element method stiffness trussed type CFST arch rib |
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