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为研究多层大跨度蜂窝形钢空腹夹层板楼盖的刚度,基于通用有限元分析软件ANSYS,建立25个分别承受竖向均布荷载和水平均布荷载作用的结构模型以研究结构的整体稳定性。基于上述模型研究了各个因素对结构稳定性的影响程度,并和传统主次梁式楼板结构的稳定性能进行了对比。分析结果表明:蜂窝形钢空腹夹层板在竖向均布荷载作用下,一阶屈曲模态明显呈碗状弯曲变形,受力较为合理。在水平荷载作用下,结构以整体失稳为主,上下肋尺寸以及表层混凝土板厚度对结构整体稳定性影响最大,与传统主次梁式楼板结构相比,蜂窝形钢空腹夹层板具有更好的整体稳定性。
In order to study the stiffness of multi-storey long-span honey-combed steel plate web sandwich panels, 25 structural models subjected to vertical uniform load and horizontal uniform load respectively were established based on the general finite element analysis software ANSYS to study the overall structural stability Sex. Based on the above model, the influence of various factors on the structural stability was studied and compared with the stability of the traditional primary and secondary girder slab structure. The analysis results show that the first-order buckling mode of the honeycomb-shaped steel webs under a uniformly distributed vertical load is bowel-shaped and the stress is more reasonable. Under the action of horizontal load, the overall structural instability is the main factor, and the size of the upper and lower ribs and the thickness of the concrete slab affect the overall stability of the structure greatly. Compared with the primary and secondary girder slab structure, the honeycomb steel slab sandwich plate has better performance The overall stability.