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采用实验和理论研究相结合的方法,通过在中部开洞板和不开洞板的对比分析,研究了无粘结预应力板在各种条件下挠度、极限承载力变化规律;并采用屈服线理论对预应力开洞板的极限承载力进行计算,得出不同开洞参数对无粘结预应力板的极限承载力的影响规律。
By means of the combination of experimental and theoretical studies, the deformation and ultimate bearing capacity of unbonded prestressed slab under different conditions were studied through the comparative analysis of open and non-opened slabs in the middle. The theoretical calculation of the ultimate bearing capacity of prestressed open-plank panels leads to the influence law of different open-hole parameters on the ultimate bearing capacity of unbonded prestressed plates.