钢—混凝土组合空腹板转换结构应用研究

发布时间：2018-12-29 11:49

【摘要】：厚板转换层作为高层建筑转换结构的重要形式，可以不受上下轴网布置的限制，能保证转换层上下部分建筑功能的顺利实现，但是由于带厚板转换层建筑动力性能上的劣势，使得厚板转换层只能用于低烈度区，高烈度区的运用较少，而且一般要专项研究之后设计施工，因此，研究一种新形式的类似板式转换层的结构，该结构不但能解决传统厚板转换层结构的动力性能劣势，也能同时保持厚板转换层本身在建筑功能实现上的优势，具有一定的现实意义。本文研究的主要内容和成果如下：采用SAP2000软件建立了带厚板转换层和带钢混组合空腹板转换层的高层建筑模型，进行了模态分析和静力线性分析，比较分析了两模型的振型特点、层间剪力分布、层间位移角分布、转换层挠度分布，总结了钢混组合空腹板转换层优势和劣势。通过7×7组正交分析，，研究了钢肋梁截面和剪力键截面尺寸因素对带钢混组合空腹板转换层建筑的影响，比较了自振周期、振型特点、层间位移、转换层挠度，得出了各因素对整体结构的影响规律。采用振型分解反应谱和动力时程分析，分析了转换层竖向错动情况，研究了竖向地震作用对钢混组合空腹板转换层的影响，得出了符合计算要求的振型组合方法，竖向错动程度及竖向地震作用对转换层各构件内力影响。总结比较了现今钢混组合空腹板的计算方法，通过一算例，比较分析了有限单元法采用不同计算单元模型的计算结果，给出了有限单元法单元选取建议。根据支座连接条件，设计出了空腹板网格中间节点和支座节点铰接和刚性连接的构造详图。
[Abstract]:As an important form of high rise building transfer structure, thick plate transfer layer can not be restricted by the upper and lower axial network arrangement, and can guarantee the smooth realization of the building function of the upper and lower parts of the transfer floor, but because of the disadvantages of the building dynamic performance of the transfer floor with thick slab, So that the thick plate transfer layer can only be used in the low intensity area, the high intensity area is less used, and it is generally necessary to design and construct after special research. Therefore, to study a new type of structure similar to the plate type transfer layer, The structure can not only solve the dynamic performance disadvantage of the traditional thick plate transfer layer structure, but also maintain the advantage of the thick plate transfer layer in the realization of building function, which has certain practical significance. The main contents and achievements of this paper are as follows: the model of high-rise building with thick plate transfer layer and steel-concrete composite empty web plate transfer layer is established by SAP2000 software, and the modal analysis and static linear analysis are carried out. The characteristics of the two models are compared and analyzed, such as the shear force distribution, the displacement angle distribution and the deflection distribution of the transfer layer. The advantages and disadvantages of the transfer layer of the steel-concrete composite fasting plate are summarized. Through 7 脳 7 orthogonal analysis, the influence of the dimensions of steel ribbed beam section and shear bond section on the transfer floor building with steel-concrete composite empty web plate is studied. The natural vibration period, mode characteristics, interstory displacement, deflection of the transfer layer are compared. The influence of various factors on the whole structure is obtained. By using the mode decomposition response spectrum and dynamic time history analysis, the vertical dislocation of the transfer layer is analyzed, the effect of vertical earthquake on the transfer layer of steel-concrete composite hollow plate is studied, and the mode combination method which meets the requirements of calculation is obtained. The degree of vertical dislocation and the effect of vertical earthquake on the internal forces of each component of the transfer layer. This paper summarizes and compares the calculation methods of steel and concrete composite empty web plates. Through an example, the calculation results of finite element method using different calculation element models are compared and analyzed, and some suggestions for the selection of finite element method elements are given. According to the condition of support connection, the structure details of the hinge and rigid connection of the middle node and the support node of the hollow plate mesh are designed.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU398.9

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