装有扇形铅黏弹性阻尼器框架结构的设计与分析

Analysis and Design of Frame Structure with Sector Lead Viscoelastic Dampers

给出了装有扇形铅黏弹性阻尼器框架结构的设计步骤,对某11层钢筋混凝土框架结构进行减震设计。采用ETABS和Perform-3D软件分别对原结构和装有扇形铅黏弹性阻尼器框架结构进行了多遇地震下的时程分析和罕遇地震下的弹塑性时程分析。结果表明:安装扇形铅黏弹性阻尼器能显著降低结构的地震反应,保护框架节点,达到小震下减小层间位移角和"大震不倒"的性能目标。

The design procedure of frame structure with sector lead viscoelastic dampers （SLVD） is provided. The energy dissipation design of 11-story reinforced concrete frame structure is carried out. Nonlinear time history analysis of frame structure with and without SLVD under frequent and rare earthquakes is conducted using software ETABS and Perform-3D. The results show that the seismic responses of structure with SLVI） are reduced dramatically. Frame joints are protected effectively achieving the performance objective that the maximum story drift of the building is reduced and the building does not collapse under rare earthquakes.