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
徐清清1
作者信息
- 1. 衡诚能源科技(上海)有限公司,上海 200125
- 折叠
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.
Abstract
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.
关键词
低层建筑/装配式结构/砌体结构/抗震性能Key words
Low-rise building/Prefabricated structure/Masonry structure/Seismic performance引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据