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免浆混凝土空心砌块砌体与传统小砌块砌体的最大区别,就在于“砌筑”时不需要砂浆,而是靠公母榫头连接,这将影响砌体的力学行为。本文以新型免浆砌块——模卡混凝土砌块为研究对象,对两片模卡砌块配筋墙片进行伪静力试验,研究试件的破坏模式、变形能力及耗能性能,同时也得到了墙片试件的滞回曲线、承载力、骨架曲线、刚度退化曲线、位移延性系数等。试验结果表明,模卡砌块配筋墙片具有良好的抗弯性能,并且可以用普通混凝土小型空心砌块配筋砌体的相关规范、规程,进行极限承载力验算。
Mortar concrete hollow block masonry and traditional small block masonry biggest difference is that “masonry ” does not require mortar, but by the male and female tenon connection, which will affect the mechanical behavior of masonry. In this paper, the new free mortar block-formwork concrete block is taken as the research object. The pseudo-static test is carried out on the two pieces of reinforced concrete block wall, and the failure mode, deformation capacity and energy dissipation performance of the test piece are studied. Simultaneously The hysteresis curves, bearing capacity, skeleton curves, stiffness degradation curves and displacement ductility coefficients of the wall specimens were also obtained. The test results show that the reinforced concrete block wall panels have good flexural properties, and can carry out the ultimate bearing capacity checking with the relevant norms and procedures of ordinary concrete small hollow block reinforced masonry.