新型装配整体式预应力楼盖的整体性能研究与有限元分析

基于新型预制预应力空心楼板实验研究，在新型楼盖中采用新型的板板连接和梁板节点。并用有限元分析软件ANSYS计算的结果与实验结果的进行对比，分析得出了新浇筑的混凝土与老混凝土界面的抗拉强度对结构受力性能的影响较小，新型预应力楼盖在竖向荷载作用下具有较好整体工作性能的结论；然后对一个预制空心楼板的装配整体式楼盖模型进行侧向加载，分析计算了其平面内刚度，同时进行有限元模拟分析这种新型楼盖结构的整体性能、宏观破坏模式，得出新型装配式楼盖具有替代整体现浇楼板或普通预制板 后浇面层楼盖的可行性和可靠性。

The research of overall performance and finite element analysis of Integral prefabricated prestressed floor

Based on the experimental study of a new precast and prestressed hollow floor, the pouring node between the slab and beam has been used to a new prefabricated integral floor. Comparing the results calculated by finite element analysis software ANSYS with the experimental results, a conclusion that the tensile strength between new concrete and old concrete has a small on performance on the structure has been analyzed. The new floor in the vertical load has good overall performance. Then a prefabricated floor model of precast hollow slabs has been built. With the lateral load, the analysis and calculation of the plane stiffness has been done. At the same time finite element analysis of the overall performance and macro failure mode of the new floor structure has been done, and it is feasible and reliable that a new prefabricated floor slab replaces the slab casting in place or ordinary precast panels floor surface pouring.