|
|||||
|
|
| 薄壁箱梁剪力滞实验与计算研究 | |
| 引用本文： | 吴幼明,罗旗帜,岳珠峰,苟文选.薄壁箱梁剪力滞实验与计算研究[J].公路交通科技,2004,21(2):73-76. |
| 作者姓名： | 吴幼明 罗旗帜 岳珠峰 苟文选 |
| 作者单位： | 1. 西北工业大学,陕西,西安,710072;佛山科学技术学院,广东,佛山,528000 2. 佛山科学技术学院,广东,佛山,528000 3. 西北工业大学,陕西,西安,710072 |
| 基金项目： | 国家自然科学基金资助项目(50005016)，航空科学基金资助项目，长江学者基金资助项目 |
| 摘 要： | 本文在分析箱梁剪力滞效应时,用多个不同的纵向位移剪力滞差值函数以反映薄壁箱梁不同宽度翼板的剪滞变化幅度,并且考虑了剪切变形情形,构造薄壁箱梁的翘曲位移函数,提出了一种能对工程中常用的变高度梯形截面箱梁剪力滞计算的梁段有限元法。进行了有机玻璃模型试验,并对模型桥作了有限段法和有限元法的数值计算,计算值与试验结果均吻合良好。 |
| 关 键 词： | 薄壁箱梁 剪力滞 有限段法 模型试验 剪切变形 |
| 文章编号： | 1002-0268(2004)02-0073-04 |
| 修稿时间： | 2002年12月9日 |
Experimental and Analytical Study of the Shear Lag in Thin Walled Box Girders |
|
| WU You-ming.Experimental and Analytical Study of the Shear Lag in Thin Walled Box Girders[J].Journal of Highway and Transportation Research and Development,2004,21(2):73-76. | |
| Authors: | WU You-ming |
| Institution: | WU You-ming~ |
| Abstract: | In this paper,several differential functions of shear lag for longituddinal displacement are used to describe the various amplitude of shear lag for thin walled box girder with different flange plate width,taking into account of the shear deformation,and form a warping displacement function for the box girder. A finite segment method on shear lag with varying depth in engineering for general box girder is presented.In addition, the tests of perspex model bridge and numerical calculation of the model tests by finite segment method and finite element method are made.The results of the model tests and the numerical calculation are consistent with each other. |
| Keywords: | Thin walled box girder Shear lag Finite segment method Model test Shear deformation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |