预应力混凝土小型空心砌块带窗洞砌体抗震性能试验

Experimental study on seismic behavior of prestressed small-sized concrete hollow block masonry walls with window opening

通过对预应力混凝土小型空心砌块砌体的水平低周反复荷载试验 ,研究了预应力砌体的破坏形态、滞回特性、延性及耗能等抗震性能。研究表明 ,预应力改变了砌体结构的材料特性 ,提高开裂荷载与极限承载力 。

Through the low cyclic reverse loading tests on prestressed small size concrete hollow block masonry walls, the failure mechanisms, ductility, dissipation energy and seismic behavior of prestressed masonry are analyzed in this paper. The results of the test show that after being prestressed the masonry walls can change its materials property and improve masonrys crack resistance and seismic behaviors. The capacity of shear resistance is also improved.