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以某典型大跨度现浇混凝土空心楼盖项目为例,分别用有限元法、拟梁法和拟板法对大跨度现浇混凝土空心楼盖进行分析。通过对计算结果进行比较,得出整体计算有限元模型能真实模拟构件的边界条件,直观反映各区域的内力分布情况,有限元法计算结果优于其他方法。因此提出了在合理划分网格的情况下,有限元法最适用于大跨度现浇混凝土空心楼盖的结论,并介绍了大跨度现浇混凝土空心板技术在熙汇广场项目的实际应用。
Taking a typical large span cast-in-place concrete hollow floor project as an example, the long-span cast-in-place concrete hollow floor is analyzed by finite element method, quasi-beam method and quasi-plan method respectively. Through the comparison of the calculated results, it can be concluded that the integral finite element model can simulate the boundary condition of the component and reflect the internal force distribution of each region intuitively. The result of the finite element method is superior to other methods. Therefore, it is put forward that the finite element method is most suitable for the large span cast-in-place concrete hollow floor when the grid is reasonably divided, and the practical application of the long-span cast-in-place concrete hollow slab in the Xihui Plaza project is introduced.