低层建筑新型装配式砌体结构抗震性能研究  

Research on Seismic Performance of New Prefabricated Masonry Structures in Low-rise Buildings

作　　者：徐清清 Xu Qingqing(Ever Trust Energy Technology(Shanghai)Co.Ltd.,Shanghai 200125)

机构地区：[1]衡诚能源科技(上海)有限公司,上海200125

出　　处：《江西建材》2024年第7期324-326,共3页

摘　　要：文中利用静力加载试验对新型装配式砌体结构的破坏模式、刚度曲线、延性系数以及耗能能力进行了分析。结果表明,T形截面装配式砌体结构的结构强度优于一字形截面,且对钢筋施加预应力可以有效提升装配式砌体结构的力学性能。施加预应力可有效提升其延性及承载性能,且T形截面具有良好的承载能力和延性。T形截面的无填充装配式砌体结构的能耗系数为0.62,施加完预应力后降低5.3%;T形截面的无填充装配式砌体结构的能耗系数为0.82,施加完预应力后降低11.5%。施加预应力可略微增强一字形截面装配式砌体结构耗能能力,但弱化了T形截面装配式砌体结构的耗能能力。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 improved by applying prestress to the rebar.The application of prestress can effectively improve its ductility and bearing capacity,and the Tshaped 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 prefabricated 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 dissipationperformance of the prefabricated masonry structure with a T section.

关 键 词：低层建筑 装配式结构 砌体结构 抗震性能 

分 类 号：TU315[建筑科学—结构工程]