| 钢-混凝土组合直箱梁变形理论分析及应用 |
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| 引用本文： | 卢彭真,赵人达,诸葛萍.钢-混凝土组合直箱梁变形理论分析及应用[J].北京工业大学学报,2011,37(2):186-190. |
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| 作者姓名： | 卢彭真 赵人达 诸葛萍 |
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| 作者单位： | 浙江工业大学建筑工程学院,杭州310014;西南交通大学土木工程学院,成都610031;西南交通大学土木工程学院,成都,610031 |
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| 基金项目： | 教育部优秀青年教师基金项目(教人司[2000]11号) |
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| 摘 要： | 组合箱梁结构刚度计算采用换算截面法没有考虑钢梁与混凝土翼板之间的滑移效应,使组合箱梁刚度较实际刚度偏大而变形较实测值偏小.利用Goodman弹性夹层假设,引入轴线滑移函数考虑组合箱梁轴线变形引起的滑移效应,通过组合箱梁受力平衡方程推导出钢-砼组合箱梁考虑滑移效应的变形平衡微分方程,得出方程相应的通解,根据边界条件获得钢-砼组合箱梁的变形表达式.算例应用计算结果表明,该分析方法能准确方便地求解钢-砼组合简支直箱梁变形,同时可得到钢-砼组合箱梁的内力,为钢-砼组合箱梁的安全设计提供理论依据.
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| 关 键 词： | 钢-砼组合直箱梁 轴向滑移函数 滑移效应 剪力连接程度系数 |
| 收稿时间： | 2010-04-10 |
Deformation Theory of Steel-concrete Composite Straight-line Box Girders and Application |
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| LU Peng-zhen,ZHAO Ren-da,ZHU Ge-ping.Deformation Theory of Steel-concrete Composite Straight-line Box Girders and Application[J].Journal of Beijing Polytechnic University,2011,37(2):186-190. |
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| Authors: | LU Peng-zhen ZHAO Ren-da ZHU Ge-ping |
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| Affiliation: | LU Peng-zhen1,2,ZHAO Ren-da2,ZHU Ge-ping2(1.Zhejiang University of Technology,College of Civil Engineering and Architecture,Hangzhou 310014 China,2.Southwest Jiaotong University,School of Civil Engineering,Chengdu 610031,China) |
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| Abstract: | On the basis of previous study,stiffness calculation of the steel-concrete composite box girders is adopted to the transformed section,and the effect of slipping is not be considered in the Rigidity calculation.Because of the effect of slipping,the calculated stiffness is slightly larger than the actual stiffness of the steel-concrete composite box girders but the deformation is relatively small,which is not safe in the deformation.Using Goodman elastic multiplayer assumption,the effect of slipping of the A... |
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| Keywords: | steel-concrete composite straight box girders function of the axial slip slip effect the shear connection degree coefficients |
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