关于框架-剪力墙结构的混合消能减震研究

Study on Hybrid Energy Dissipation and Seismic Absorption of Frame-shear Wall Structures

当前,单独采用粘滞阻尼器或BRB作为大多数框架-剪力墙结构的消能减震技术,根据它们的位移速度等不同均有着各自的优势。因此,二者在性能上是存在互补性的,但是单独使用这两种阻尼器用来消能减震也确实是存在一些不足。故在本文中将两种减震技术在框架-剪力墙结构中进行合理设计,努力得到更佳的消能减震结果。以14层框架-剪力墙结构为研究对象,得到4种不同混合减震方案,并设计仅设置粘滞阻尼器和BRB的结构进行对比。将这6种减震结构分别在多遇、罕遇地震下的地震反应进行对比。从而找出最优的设计方案,为以后的工程实践奠定基础。

At present,the energy dissipation damping technologies in the frame-shear wall structure are mostly viscous dampers and BRB which respectively associated with speed and displacement.Each one has different advantage of energy dissipation damping.Therefore,both of them are complementary in performance,but it is true that a couple of deficiencies exist when using two dampers separately.Therefore,the reasonable combined designs of two structures of the frame-shear wall structure are designed in this paper for the sake of obtaining the better effect of energy dissipation.In this paper,a frame-shear wall structure model of 14-layer building was be built in the research as the object.To set up the viscous damper and BRB together and gain four different damping scheme and set up a designed using viscous dampers structure and the structure of the BRB separately.The results of the earthquake response in the case of multiple encounters and rare earthquakes are compared.The consequences show that the seismic performances of four kinds of hybrid damping structures are between BRB structure and viscous damper structure.