| 考虑滑移的钢-混凝土组合梁有限单元法 |
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| 引用本文： | 王文炜,翁昌年,万水,李淑琴.考虑滑移的钢-混凝土组合梁有限单元法[J].东南大学学报(自然科学版),2007,37(2):206-212. |
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| 作者姓名： | 王文炜 翁昌年 万水 李淑琴 |
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| 作者单位： | 1. 东南大学交通学院,南京,210096
2. 辽宁省大通公路工程有限公司,沈阳,116021 |
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| 摘 要： | 利用考虑滑移的钢混凝土组合梁单元,建立了考虑滑移的钢混凝土组合梁有限单元法.在粘结剪力和滑移微分控制方程的基础上,建立了关于组合梁单元杆端未知力的力法方程.在力法方程的基础上,给出了组合梁单元的刚度矩阵、杆端位移向量及杆端荷载向量并建立了刚度方程.为验证有限单元法的正确性,对试验梁进行了跨中挠度、沿梁高应变分布及梁端滑移的计算分析.计算结果表明,所建立的考虑滑移的钢混凝土组合梁有限单元法与试验值吻合较好,计算结果可靠.
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| 关 键 词： | 滑移 钢混凝土组合梁 有限单元法 刚度矩阵 位移向量 荷载向量 |
| 文章编号： | 1001-0505（2007）02-0206-07 |
| 修稿时间： | 2006-05-31 |
FE method of steel and concrete composite beams considering slip between steel girder and concrete plate |
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| Wang Wenwei,Weng Changnian,Wan Shui,Li Shuqin.FE method of steel and concrete composite beams considering slip between steel girder and concrete plate[J].Journal of Southeast University(Natural Science Edition),2007,37(2):206-212. |
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| Authors: | Wang Wenwei Weng Changnian Wan Shui Li Shuqin |
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| Institution: | 1.School of Transportation, Southeast University, Nanjing 210096, China;2.Datong Highway Engineering Ltd. Company, Shenyang 116021, China |
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| Abstract: | Based on displacement-based finite element models proposed,a finite element(FE) method of steel and concrete composite beams considering slip between steel girder and concrete plate is presented.A force-method equation about unknown nodal forces of the composite beams is proposed based on the governing differential equation.Based on the force-method equation,the stiffness matrix and fixed-end nodal displacement and force vector are derived.The proposed model is compared with experimental beams in the midspan cross-section deflections,strain distribution and the slip of supporting points.It is shown that the calculation results by the proposed method are in close agreement with the experimental results. |
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| Keywords: | slip steel-concrete composite beam FE method stiffness matrix nodal displacement vector nodal force vector |
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