带转换层高层结构的转换层类型优选分析与研究

发布时间：2018-04-30 05:15

本文选题：复杂高层结构 + 转换层类型　；参考：《华中科技大学》2015年硕士论文

【摘要】：随着现代建筑的发展,为了满足建筑的不同功能要求,同时满足抗风与抗震设防的相关性能,带转换层的高层建筑结构发展迅速。转换层结构的选择对建筑结构的安全与受力性能及工程造价都有重要影响。在工程设计时如何选择转换结构类型使工程结构既满足受力要求,又具有良好的技术经济性能具有重要的实际意义。论文对本领域国内外相关研究与应用现状进行系统综述的基础上,结合柱网为36 m?36 m的框架-核心筒结构的工程实例并进行抽象化处理后为本文的算例结构,分别研究了普通钢筋混凝土梁式转换、箱型转换、斜柱转换、型钢梁式转换、预应力梁式转换、宽扁梁转换等6种不同的转换层结构,运用PKPM建立相应的带不同转换层框架-核心筒结构的分析模型,并进行了计算分析;根据分析计算结果对不同转换层框架-核心筒结构的受力性能进行了研究,对带普通钢筋混凝土转换层的框架-核心筒结构分别在地震烈度为7度和8度的条件下,将转换层位置分别设置在第一层至第七层,同时将转换层层高分别确定为3、4、5、6、7米时,研究了转换层的侧向刚度和转换层设置位置对建筑结构受力性能的影响。在框架-核心筒柱网6.0 m?8.0 m~10.0 m?15.0 m的跨度下,建立66个不同跨度下带不同的转换层的框架-核心筒计算模型,通过计算分析,研究了转换层跨度的改变对结构受力性能和技术经济性能进行了对比分析,得出了关于转换层结构类型的优选方法等具有参考价值的结论。
[Abstract]:With the development of modern buildings, in order to meet the different functional requirements of buildings, and to satisfy the correlation between wind resistance and seismic fortification, high-rise building structures with transition stories have developed rapidly. The selection of transfer structure has an important influence on the safety, mechanical performance and engineering cost of the building structure. It is of great practical significance that how to select the conversion structure type in the engineering design so that the engineering structure can not only meet the stress requirements, but also have good technical and economic performance. On the basis of a systematic review of the domestic and foreign research and application situation in this field, this paper combines the engineering example of the frame core tube structure with 36 m column net and abstracts it as the example structure of this paper. Six kinds of transfer story structures, such as ordinary reinforced concrete beam conversion, box type conversion, oblique column conversion, steel beam type conversion, prestressed beam conversion, wide flat beam conversion, etc., are studied respectively. The corresponding analysis model of frame-core tube structure with different transfer layer is established by using PKPM, and the calculation and analysis are carried out, and the mechanical behavior of frame-core tube structure with different transfer layer is studied according to the results of analysis and calculation. For the frame-core tube structure with ordinary reinforced concrete transfer layer, when the seismic intensity is 7 degrees and 8 degrees respectively, the position of the transfer layer is set at the first layer to the seventh floor respectively, and the height of the transfer layer is determined to be 34,5 or 67m respectively. The influence of lateral stiffness of the transfer layer and the location of the transfer floor on the mechanical performance of the building structure is studied. Under the span of 6.0 m ~ 8.0 m ~ (10) m ~ (10) m ~ (15.0 m) of frame-core cylinder net, 66 frame-core tube calculation models with different transfer layers under different span are established, and the calculation results are analyzed. This paper studies the change of the span of the transfer layer and makes a comparative analysis of the mechanical performance and the technical and economic performance of the structure, and draws the conclusion that the optimal selection method of the structural type of the transfer layer has reference value.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU973.3

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