正六边形蜂窝型空间盒式结构受力性能对比分析

为了研究正六边形蜂窝型空间盒式楼盖结构体系在大跨度中高层建筑中的受力性能，根据工程实例，运用ANSYS有限元结构分析软件建立了不同平面楼盖结构布置的有限元分析模型，对比研究了正六边形蜂窝型空间盒式结构体系与正交斜放型空间盒式结构体系在竖向静力试验作用下的结构反应，研究了两种不同盒式结构楼盖的最大挠度、自振频率和整体刚度。研究结果表明，在竖向荷载作用下，正六边形蜂窝型空间盒式结构体系呈现三向传力特性，结构性能表现较好。相比正交斜放型空间盒式结构体系，正六边形蜂窝型空间盒式结构体系的楼盖跨中挠度较小，其整体性、稳定性更佳。依据模态分析方法，通过对比两种结构体系的自振频率与周期，得到了正六边形蜂窝型空间盒式楼盖结构体系的整体抗侧移刚度与空腹夹层板楼盖抗弯刚度均大于正交斜放型空间盒式结构的结论。从经济性层面上比较，得知在相同使用功能要求情况下，正六边形蜂窝型空间盒式楼盖结构体系的用钢量要远小于正交斜放钢混结构盒式结构体系的用钢量，更能节约建造成本。

Comparative Analysis of Mechanical Performance of Hexagonal Honeycomb Space Box Structure

Aimed at a study of the mechanical property of hexagonal honeycomb space box floor structure system in long-span medium and high-rise buildings, based on specific engineering examples, a finite element analysis model of different plane floor structure layouts has thus been established by using ANSYS finite element structure analysis software, with a comparative study on the structural response of hexagonal honeycomb space box structure system and orthogonal inclined space box structure system under the action of vertical static test, followed by a research on the maximum deflection, natural frequency and overall stiffness of two different box structure floors. The results show that under the vertical load, the hexagonal honeycomb space box structure system embodies three-dimensional force transmission characteristics with a good structural performance. Compared with the orthogonal inclined space box structure system, the hexagonal honeycomb space box structure system is characterized with a smaller mid-span deflection, as well as an improved integrity and stability. According to the modal analysis method, based on the natural frequencies and periods of the two structural systems, it is concluded that the overall lateral stiffness and the flexural stiffness of the open web sandwich slab floor of the hexagonal honeycomb space box structure system are greater than that of the orthogonal inclined space box structure. From the perspective of economy, it is known that under the same functional requirements, the steel consumption of the regular hexagonal honeycomb space box floor structure system is much smaller than that of the orthogonal inclined steel-concrete box structure system, thus greatly saving the construction cost.