【摘要】 消能节点装配式木框架结构体系是以Q235钢制成的消能节点将规格木材制成的梁、柱连接成具有较大抗侧刚度的延性框架体系。通过3个足尺消能节点的拟静力试验,研究了该节点的受力性能、破坏形态、滞回特性与耗能能力等。研究结果表明:在弹性工作阶段,消能节点将木梁、柱连接成具有较大抗侧刚度的框架体系;在非线性工作阶段,结构通过节点的塑性变形消耗外部输入结构的能量;破坏时结构变形主要集中在节点上,节点钢板达到屈服强度,而木构件处于弹性工作状态;节点的位移延性系数达到5左右,其等效阻尼比达0.2左右;装配式木框架结构消能节点具有良好的延性、耗能能力与减震效果。更多还原

【Abstract】 An assembled timber frame structure can achieve good ductility and high lateral stiffness by connecting its timber columns and beams with energy dissipating joints made by Q235 steel.The mechanical performances,damage model,hysteresis loops,and energy dissipation were investigated in this research by quasi-static experiments on three full scale joints.The results indicate that the timber columns and beams can be connected to form an assembled frame with high lateral stiff frame at elastic stage.The input energy can be dissipated by the plastic deformation of the joints at nonlinear stage.The deformation of the structure will mainly concentrates at the joints when structural damage occurs.The timber members remain elastic while the joint steel plates yield.The maximum displacement ductility is about 5.The damping ratio of the joints can reach about 0.2.The joint proposed in this paper has excellent ductility,energy dissipation capacity and earthquake mitigation effect.更多还原