Research on Seismic Performance of New Prefabricated Masonry Structures in Low-rise Buildings
In this paper,the failure mode,stiffness curve,ductility coefficient and energy dissipation performance of new prefabricated masonry structure are analyzed by static loading test.The results show that the structural strength of T-shaped section prefabricated masonry is better than that of unfilled prefabricated masonry of a straight section,and the mechanical properties of prefabricated masonry can be effectively im-proved by applying prestress to the rebar.The application of prestress can effectively improve its ductility and bearing capacity,and the T-shaped section has good bearing capacity and ductility.The energy dissipation coefficient of the unfilled prefabricated masonry structure with T-shaped section is 0.62,which decreases by 5.3%after the prestress is applied.The energy dissipation coefficient of the unfilled prefabrica-ted masonry structure with T-shaped section is 0.82,which decreases by 11.5%after applying prestress.The application of prestress can slightly strengthen the energy dissipation performance of the prefabricated masonry structure with a straight section,but weaken the energy dis-sipationperformance of the prefabricated masonry structure with a T section.
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