| 钢-混凝土组合箱梁剪力滞效应级数解 |
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| 引用本文： | 程海根,强士中.钢-混凝土组合箱梁剪力滞效应级数解[J].土木工程学报,2004,37(9):37-40. |
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| 作者姓名： | 程海根 强士中 |
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| 作者单位： | 1. 华东交通大学土建学院
2. 西南交通大学桥梁工程系 |
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| 摘 要： | 对于组合箱梁 ,在一定假设条件下根据组合翼板微元的变形协调和平衡条件 ,分别建立了横截面翼板和悬臂板的法向力微分方程。在两端简支的边界条件下采用分离变量法求解偏微分方程 ,得到用级数表示的应力解 ,然后根据剪力滞系数的定义即可得到组合箱梁翼板的剪力滞系数。通过算例验证了该近似方法能够满足工程实际的需要 ,计算较为简单
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| 关 键 词： | 组合箱梁 法向力 微分方程 剪力滞系数 |
| 文章编号： | 1000-131X(2004)09-0037-04 |
| 修稿时间： | 2002年10月8日 |
SERIES SOLUTION OF SHEAR LAG OF STEEL- CONCRETE COMPOSITE BOX GIRDER |
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| Cheng HaigenQiang Shizhong.SERIES SOLUTION OF SHEAR LAG OF STEEL- CONCRETE COMPOSITE BOX GIRDER[J].China Civil Engineering Journal,2004,37(9):37-40. |
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| Authors: | Cheng HaigenQiang Shizhong |
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| Affiliation: | Cheng HaigenQiang Shizhong (Eastchina Jiaotong University)(Southwest Jiaotong University) |
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| Abstract: | A differential equation of longitudinal forces at transverse section and cantile ver flange is respectively constituted according to the compatibility of strain and the equilibrium of forces of composite box girder in certain conditions.The m ethod of variable-separating is used to solve the differential equation in simpl y supported boundary condition.The shear lag coefficient is determined by the r atio between stress calculated by this method and stress decided by elementary b eam theory.An example of such calculation method is given to approve its applica bility and the caculation is simple. |
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| Keywords: | composite beams longitudinal stress differential equati ons shear lag coefficient |
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