Research situation and development of the rocking wall system
Seismic resilience of structures has become an important research direction of earthquake prevention and disaster reduction.The existing research shows that the rocking wall can coordinate the deformation mode of the frame structure,improve the structural damage mechanism,and save the structural cost;Meanwhile,the rocking wall can unify the three methods for improving structural seismic resilience:rocking,self-centering and replaceable,and has attracted extensive research from domestic and foreign scholars.In this paper,the origin of rocking structure is reviewed,and the working mechanism and failure mode of frame-rocking wall structural systems are introduced.The existing research of rocking wall with different material properties,hybrid rocking wall and continuously rocking wall are reviewed.The design method of the frame-rocking wall is concluded,as well as the connection design between the rocking wall and the foundation and frame.And the structures with similar functions as the rocking wall are presented.Finally,the characteristics and main problems of the rocking wall structure are summarized,and the development trend of the rocking wall structure system is prospected.