摘要
该文以自复位墙作为研究对象,将其简化成一刚体,分别仅考虑自重、考虑预应力筋影响及同时考虑预应力筋和阻尼器的影响,通过理论推导得出了往复荷载作用下的水平力-转角曲线,研究了其在往复荷载作用下的受力机理。研究表明:自复位墙墙体自重和预应力筋共同提供自复位能力,阻尼器提供耗能能力;自复位墙的力学性能与墙体几何尺寸、预应力筋及阻尼器参数有关。
The self-centering wall is simplified as a rigid body, while the horizontal load vs. rotation curve of the self-centering wall subjected to cyclic loading is obtained by theoretical derivation. Three cases are taken into account to investigate the mechanical behavior of the self-centering wall, i.e. only considering the self-weight of the self-centering wall, considering the effect of prestressed tendons, and considering both the influence of prestressed tendons and dampers. The study presented in this paper indicates that for the self-centering wall, the prestressed tendons provide the self-centering ability along with the gravity of the wall, while the dampers can dissipate energy. In addition, the mechanical performance of the self-centering wall depends on the dimensions of wall, the design parameters of prestressed tendons and dampers.
出处
《工程力学》
EI
CSCD
北大核心
2013年第11期202-206,共5页
Engineering Mechanics
基金
国家自然科学基金项目(51208386)
湖北省自然科学基金项目(2011CDB266)
武汉大学引进人才科研启动项目(273528)
关键词
自复位墙
预应力筋
阻尼器
受力机理
耗能
self-centering wall
prestressed tendon
damper
mechanical behavior
energy dissipation
