【摘要】 根据我国轻型木结构工程实际应用情况,制作了14个剪力墙试件、2个木楼盖试件,采用单调加载方式进行抗侧力试验研究,并且采用有限元模型补充分析了常用尺寸剪力墙的抗侧力性能。在试验研究的基础上,提出基于变形的剪力墙和楼盖的刚度取值方法,分析了剪力墙承载力和刚度与剪力墙长度的关系,比较了剪力墙开洞、石膏板覆面对剪力墙承载力和刚度的影响,以及楼盖的抗侧力刚度和变形性能,获得一些有益的启示。更多还原

【Abstract】 14 wood shear walls and 2 diaphragms were tested.The specimens were made according to common light frame wood engineering practices in China.All the specimens were tested under monotonic load protocol.Finite element analysis was executed to extend study of the shear walls.Furthermore,a method for calculating lateral stiffness based on displacements was provided.The studies verified that the lateral stiffness and strengths of shear walls were proportion to the lengths.The lateral stiffness and strengths of perforated and gypsum board sheathed shear walls were studied,and the methods to improve stiffness and strengths of the walls were compared.The stiffness and strengths of unblocking floor diaphragm were studied.It is found that sheathings of diaphragm transfer shear loads and most moment loads,while the maximum slips of sheathing-to-framing joints of diaphragm were found in unblocking edges of sheathings in corner areas.Some other useful conclusions were also obtained in the study.更多还原