1.China Academy of Building Research;2.Beijing Jiaotong University
In order to understand the rotation phenomenon in the failure process of masonry wall and the influence of rotation deformation on the seismic performance of masonry wall, referring to the literature related to the seismic test of masonry wall at home and abroad, the rotation phenomena of ordinary masonry wall, masonry wall with constructional column and reinforced masonry wall in the test process are extracted, and the rotation deformation under different specimen design, stress conditions, reinforcement methods and other factors are summarized The influence of rotational deformation on the seismic performance of masonry wall is discussed. The results show that: rotation phenomenon is common in the process of masonry wall stress, and even appears the failure phenomenon of rotation deformation control; rotation deformation reduces the bearing capacity and equivalent lateral stiffness of masonry wall, and the deformation capacity of masonry wall is improved when rotation failure occurs, which provides reference for the subsequent study of masonry structure lateral stiffness and bearing capacity calculation method under the influence of rotation deformation. At present, the literature of masonry wall seismic test generally lacks the description of rotation phenomenon, but it is not without rotation deformation. In the follow-up research work, it is suggested to pay attention to the rotation deformation phenomenon of masonry wall and its impact on seismic performance.