【摘要】 为研究密肋复合墙板内钢筋混凝土框格单元结构的力学性能,对5个不同相对刚度比的框格单元及3个空框格结构进行了1/2比例模型试验.分析了试件的破坏发展过程,探讨了外围框格构件的影响.结果表明外围框格构件与框内填充砌体相互作用明显.框格单元内形成了砌体压杆传力机制.框格单元结构的承载能力远高于空框格结构,但其变形能力降低.外围框格构件对框格单元结构的力学性能影响显著.相对刚度适度减小时,框格单元结构初始刚度、抗裂能力和极限承载能力提高.更多还原

【Abstract】 This paper presents a study on the mechanical behavior of the fundamental reinforced concrete frame structure in multi-ribbed walls,where 1:2 ratio model experiments of eight specimens were conducted.The damage processes of the specimens are analyzed and the effects of the peripheral frame members discussed.It is revealed that the infilled masonry interacts with the peripheral frame members distinctly.The masonry compressive strut mechanism is formed in the fundamental reinforced concrete frame structure.The load-resisting capacity of the fundamental frame structure is greater than that of the corresponding frame,but its deformation capacity is reduced.The peripheral frame members remarkably affect the mechanical behavior of the fundamental frame structure.With the decrease of the structural relative stiffness to a proper degree,the fundamental frame structure increases in the initial stiffness,crack-resisting capacity and the ultimate load-resisting capacity.更多还原