当前位置:主页 > 管理论文 > 城建管理论文 >

基础与上部结构共同作用的研究

发布时间:2018-04-13 16:32

  本文选题:基础 + 上部结构 ; 参考:《浙江大学》2014年硕士论文


【摘要】:随着社会经济的发展,人们生活水平的不断提高,越来愈多的高层建筑、超高层建筑在我国大地上兴起。在目前的建筑结构设计中,常常把上部结构看成是柱底端与基础脱开考虑的独立结构,这种传统的设计方法不考虑上部结构与基础共同作用的影响,计算结果与实际有较大的出入,尤其是在高层建筑中,不合理的现象更加明显。因为高层建筑的上部结构,同下部的基础、甚至地基是一个有机整体,相互联系、相互影响,因此,在建筑结构设计中,基础和上部结构共同作用的影响是不容忽视的。 本文总结了国内外在上部结构与地基基础共同作用分析方面的研究方法和成果,首先,论述了共同作用的作用机理,分析上部结构、基础、地基的刚度形成及产生的影响,从理论上阐述了上部结构-基础相互作用体系的计算分析模型与分析方法;然后以实际工程项目——临海市江南里洋住宅区山水一品C区工程7#楼为研究对象,基于传统结构计算软件PKPM,用JCCAD计算模块通过考虑上部结构刚度对基础的影响达到位移协调共同作用的目的。本文研究内容及结论如下:(1)通过对考虑基础—上部结构共同作用模型的分析,得出了桩底反力和基础内力变化规律;(2)对考虑基础和上部结构共同作用后的上部结构进行了动力特性分析,得出基础—上部结构共同作用使得结构动力特性发生改变的一些规律,即自振周期延长,振型发生改变;在水平力作用下,结构侧向位移加大,结构内力发生变化等。 因此,对于高层建筑,在概念设计和结构计算中如若考虑共同作用的影响,将使得结构设计更加安全、合理、经济。
[Abstract]:With the development of social economy, people's living standards continue to improve, more and more high-rise buildings, high-rise buildings rise in our country. In the current building structure design, often the superstructure as a separate column bottom and from consideration, this kind of traditional design method does not consider the influence of the upper structure and foundation, the results were different from the actual, especially in high-rise buildings, the unreasonable phenomenon is more obvious. Because the upper structure of the high-rise building foundation, with the lower part of the foundation, and is an organic whole, mutual connection, mutual influence, therefore, in the design of the building structure, influence the interaction of foundation and upper structure can not be ignored.
This paper summarizes the interaction of superstructure and foundation at home and abroad research methods and achievements of the first, discusses the mechanism of interaction of superstructure, foundation, analysis, foundation stiffness and influence the formation of the upper structure and foundation interaction system analysis model and analysis method are described from in theory; then based on the actual project, the Jiangnan residential landscape in ocean engineering 7# C a district building as the research object, based on the traditional structure calculation software PKPM, calculation module by considering the superstructure stiffness effect on the basis of the interaction of displacement coordination to achieve by JCCAD. The contents and results of this paper are as follows: (1) through the analysis of the foundation structure interaction model, the counter force of the pile bottom and the rule of internal force variation; (2) to consider the base and the upper part of the structure of CO The upper structure with effect of dynamic characteristic analysis, draw some rules of interaction of superstructure, the dynamic characteristics of the structure changes, the natural period was prolonged and the mode change; under horizontal force, lateral displacement increase and the structure internal force change.
Therefore, for high-rise buildings, the impact of the common role in conceptual design and structural calculation will make the design more safe, reasonable and economical.

【学位授予单位】:浙江大学
【学位级别】:硕士
【学位授予年份】:2014
【分类号】:TU470

【参考文献】

相关期刊论文 前1条

1 齐良锋,张保印,简浩;某高层建筑桩筏基础桩间土反力原位测试研究[J];岩土力学;2004年05期



本文编号:1745306

资料下载
论文发表

本文链接:https://www.wllwen.com/guanlilunwen/chengjian/1745306.html


Copyright(c)文论论文网All Rights Reserved | 网站地图 |

版权申明:资料由用户357cd***提供,本站仅收录摘要或目录,作者需要删除请E-mail邮箱bigeng88@qq.com