混凝土灌芯石膏板板梁抗剪承载力试验研究

Experimental Study on Shear Bearing Capacity of Concrete-filled Plasterboard Beam

根据混凝土灌芯石膏板预留门窗洞口及设置连梁的实际情况,通过六根混凝土灌芯石膏板板梁的试验,分析混凝土灌芯石膏板板梁的受剪机理和破坏特点.在桁架模型的基础上,引入了考虑石膏板影响的截面换算系数,对石膏板、混凝土协同工作的机理进行了分析.结合试验结果和理论分析,得出了一些结论.

According to the actual project, the holes of the doors and windows should be prefabricated, and the connecting beam above them should be set. Based on the experiments of six concrete-filled plasterboard beams, this paper analyzed the mechanism of the beam to stand against shearing force and the characters of destruction. Considering the influence of the plasterboard to shear capacity, a section conversion coefficient is introduced to the truss-model. With the truss-model, the mechanism that concrete works together with plasterboard is analyzed. Together with the results of the test and theory analysis, soma conclusions are put forward.