| 框架柱在地基土支承损失条件下的内力分析 |
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| 引用本文： | 张国学,宋建夏,刘晓航. 框架柱在地基土支承损失条件下的内力分析[J]. 宁夏大学学报(自然科学版), 1999, 20(4): 316-319 |
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| 作者姓名： | 张国学 宋建夏 刘晓航 |
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| 作者单位： | 宁夏大学土木工程系!宁夏银川750021(张国学，宋建夏)，宁夏煤矿设计院!宁夏银川750021(刘晓航) |
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| 基金项目： | 宁夏区教委科研基金，国家留学基金管理委员会基金 |
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| 摘 要： | 利用有限元法，通过对一栋１２ 层钢筋混凝土框架结构在１０ 种地基土支承损失条件下，土与上部结构协同工作的三维分析，探讨了框架柱内力变化的基本趋势．结果表明，支承损失对柱子轴力影响很小，对弯矩值的影响较大；但随着楼层的增高和表示地基土支承损失的土中孔洞尺寸的减小，以及其所在位置与基础地面距离的加大，对柱弯矩的影响逐渐减小．
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| 关 键 词： | 框架柱 轴力 弯矩 支承损失 有限元法 协同工作 |
| 文章编号： | 0253-2328(1999)04-0316-04 |
| 修稿时间： | 1999-09-17 |
Analysis of internalforces of frame columns with the support loss |
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| Zhang Guoxue. Analysis of internalforces of frame columns with the support loss[J]. Journal of Ningxia University(Natural Science Edition), 1999, 20(4): 316-319 |
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| Authors: | Zhang Guoxue |
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| Abstract: | The columns internal forces of a 12 storey RC frame with and without support loss are investigated by using three dimension finite element method considering soil structure interaction.The support loss is expressed by soil voids, which are set up as 10 different sizes and locations.Results of the study indicate that the effect of support loss on the columns axial forces changes little,the influences of bending moments of the frame columns are substantial.With the stories increase and the voids sizes enlarge and the voids location are far away from the foundation, the influences for the bending moments lessens gradually. |
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| Keywords: | frame column axial force bending moment support loss finite element method interaction |
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