Nonlinear stimulation of reinforced masonry structure and adding-story isolation model

Nonlinear dynamic response of masonry structure strengthened by external prefabricated reinforced concrete panel and the adding-story isolation structure under major earthquake is carried out. The ABAQUS finite software is used for dynamic elasto-plastic analysis of the masonry structure model, the reinforcement structure model and adding-story isolation on the top of reinforcement structure model. The results show that seismic response and nonlinearity impairments of original masonry building is mitigated effectively after reinforcement, the base shear forces are undertook all mostly by external structure; Adding-story isolation reduce seismic action of the substructure and mitigate masonry impairments. The analysis shows that, masonry structure strengthened by external prefabricated reinforced concrete panel is very effective by reduce the seismic response and damage, and the effect of the adding-story isolation structure is better, the reinforcement method of this paper has a good prospect of engineering application.