| 混凝土箱梁的剪滞效应分析 |
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| 引用本文： | 蔺鹏臻,周世军,刘凤奎.混凝土箱梁的剪滞效应分析[J].公路,2011(6):52-55. |
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| 作者姓名： | 蔺鹏臻 周世军 刘凤奎 |
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| 作者单位： | 兰州交通大学甘肃省道路桥梁与地下工程重点实验室;重庆大学土木工程学院; |
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| 基金项目： | 甘肃省自然科技基金资助项目,项目编号3ZX062-B25-008; 兰州交通大学“青蓝”人才工程基金计划资助项目 |
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| 摘 要： | 首先针对一集中力作用的简支梁结构,探讨了有限元分析中不同荷载施加方式对计算结果的影响,通过和试验值的比较,得出集中力施加于箱梁中性轴部位的理论分析结果与试验值最为接近.针对混凝土箱梁常见的翼板变厚度、腹板与翼板连接部位加腋等结构特点,通过有限元理论分析方法,研究了翼板厚度变化对剪滞效应的影响因素和规律,得出悬臂根部的翼...
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| 关 键 词： | 混凝土箱梁 剪力滞效应 有限元 效应分析 |
Analysis of Effect of Flange Thickness Changing on Shear Lag of Concrete Box Girders |
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| LIN Peng-zhen,ZHOU Shi-jun,LIU Feng-kui.Analysis of Effect of Flange Thickness Changing on Shear Lag of Concrete Box Girders[J].Highway,2011(6):52-55. |
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| Authors: | LIN Peng-zhen ZHOU Shi-jun LIU Feng-kui |
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| Institution: | LIN Peng-zhen1,ZHOU Shi-jun2,LIU Feng-kui1 (1.Key Laboratory of Gansu Province for Road Bridge and Underground Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China,2.Civil Engineering College,Chongqing University,Chongqing 400044,China) |
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| Abstract: | In order to analyze effect of flange thickness changing on shear lag of box girders,a simply supported beam is caculated under concentrated load using finite element method.Compared with different load patterns,the better one is concentrated load applied on the neutral axis which stress is more equal to testing value.For concrete box girders,the flanges always are changed to make stress transiting smoothly and reinforcing steel bar arranged easily.In this paper,the shear lag effect is analyzed by a simply s... |
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| Keywords: | concrete box girder shear lag effect Finite Element Method effect analysis |
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