| 框架结构逐层加载的基础沉降数值研究 |
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| 引用本文： | 刘福顺,于广明,章伟,王卫英. 框架结构逐层加载的基础沉降数值研究[J]. 辽宁工程技术大学学报(自然科学版), 2007, 26(4): 544-546 |
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| 作者姓名： | 刘福顺 于广明 章伟 王卫英 |
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| 作者单位： | 中国海洋大学,工程学院,山东,青岛,266071;青岛理工大学,土木工程学院,山东,青岛,266033;青岛理工大学,工程质量检测鉴定中心,山东,青岛,266033 |
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| 基金项目： | 国家自然科学基金重点资助项目(50434020)，国家自然科学基金资助项目(50434020)，建设部科技研究计划资助项目(03-2-30)，山东省自然科学基金资助项目(Z2003F02) |
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| 摘 要： | 应用ANSYS程序建立了框架结构-独立基础-地基共同作用的数值模型,并借助其单元生死功能实现逐层加载。通过研究发现,逐层加载和一次加载对基础最终沉降量影响不大;基础沉降曲线并不随施工层数的增加而线性增长,而是当增加到一定层数时才表现出明显的非线性,且层数越多,非线性关系越明显;进而提出了基础沉降值非线性累积与相邻基础间沉降差非线性累积的概念。为进一步研究基础沉降的非线性规律具有一定的指导意义。
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| 关 键 词： | 框架结构 逐层加载 基础沉降 ANSYS 共同作用 非线性累积 |
| 文章编号： | 1008-0562（2007）04-0544-03 |
| 修稿时间： | 2005-05-24 |
Numerical research on foundation settlement of frame structure loaded floor by floor |
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| LIU Fu-shun,YU Guang-ming,ZHANG Wei,WANG Wei-ying. Numerical research on foundation settlement of frame structure loaded floor by floor[J]. Journal of Liaoning Technical University (Natural Science Edition), 2007, 26(4): 544-546 |
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| Authors: | LIU Fu-shun YU Guang-ming ZHANG Wei WANG Wei-ying |
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| Affiliation: | 1.College of Engineering, Ocean University of China, Qingdao 266071, China; 2.College of Civil Engineering, Qingdao Technological University, Qingdao 266033, China; 3. Center for Engineering Test and Appraisal, Qingdao Technological University, Qingdao 266033, China |
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| Abstract: | Numerical model considering the interaction of structure,foundation and soil is established with ANSYS,whose function of element birth and death can be employed for loading floor by floor.Results indicate that two loading methods,which are loading floor by floor and loading one time,respectively,have little influence on ultimate settlement;settlement curve does not increase linearly with the floor number,and nonlinear relationship between the curve and the floor number will be obvious when the floor number up to certain value,more the floor numbers are,more obvious the nonlinear relation is.Then the concepts,which are the nonlinear accumulation of foundation settlement and the settlement discrepancy between adjacent foundations,are put forward.The achievements will contribute to the further study on nonlinear mechanics of foundation settlement,and provide theoretical guidance for design and construction of frame structure. |
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| Keywords: | frame structure loaded floor by floor foundation settlement ANSYS interaction nonlinear accumulation |
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