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预应力混凝土叠合板是在预制预应力混凝土板上现浇钢筋混凝土叠合层形成的装配整体式楼板,具有大跨度、降低建筑层高、抗震性能好、节省材料、方便施工等优点。文章主要介绍预应力混凝土单向及双向叠合板试验及计算方法的研究进展,讨论叠合面处理方法及其抗剪强度计算方法,总结单向连续叠合板支座弯矩调幅系数取值建议,并介绍双向叠合板的横向拼缝构造、拼缝对抗弯性能的影响以及承载力和刚度计算方法。最后提出下一步研究工作的建议。
Prestressed concrete plywood is a prefabricated prestressed concrete slab cast-in-place reinforced concrete laminated assembly of integrated floor, with a large span, lower building height, good seismic performance, save material, easy construction and so on. In this paper, the research progress of the test and calculation methods of unidirectional and bidirectional composite plywood of prestressed concrete are introduced. The method of composite surface treatment and the calculation method of shear strength are discussed. The suggestions on the value of moment modulation index of single- The paper introduces the structure of transverse joint of two-way composite board, the effect of patchwork on the bending resistance and the calculation method of bearing capacity and rigidity. Finally, put forward the suggestion of the next research work.