摘要
介绍一种新型黏塑性阻尼器( VPD) ,用于结构的抗震设计。这种装置包含了基于位移和基于速度两种装置的特性。VPD装置由一组夹在两块钢板间的高阻尼黏弹性材料组成,这两块钢板弯曲成特定的形状,可使变形放大,旨在能得到黏弹性材料的拉力和压应变。在低频振动中,该装置可以通过放大轴向应变来耗能,不过只针对于在黏弹性材料中;而从中级到高水平振动中,主要采用钢构件的屈服来耗能。除耗能外,该装置还可为钢构件和黏弹性材料提供刚度。
A new visco-plastic damper （VPD） for seismic protection of structures is introduced in this paper. This device combines and enhances many of the proven characteristics of both displacement-dependent and velocity-dependent devices. The VPD device consists of a block of a highdamping viscoelastic material sandwiched between two steel shapes （plates or channels） bent in a certain configuration to amplify the deformations in the device in order to obtain large tensile and compressive strains in the viscoelastic material.
出处
《钢结构》
2008年第6期86-87,共2页
Steel Construction
关键词
阻尼器
有限元分析
被动控制
塑性
抗震设计
黏弹性
Dampers
Finite element analysis
Passive control
Plasticity
Seismic design
Viscoelasticity
