Abstract：This paper uses discontinuous deformation analysis and FEM to study the earthquake response analysis on masonry structures. In the modeling process, the bricks, columns, lintels and floors in the masonry structure are regarded as independent elastomer. Each elastomer is classified as a finite element. Movement among the elastomers is based on the opening, closure and slide control of the contact interface. To prevent the intrusion of elastomer we correct the results of least-square of displacement and strain to the simulation system. We use Coulomb-Moore’s law to control the function and failure of mortar’s forces among elastomers. We input the peak acceleration equal to the seismic intensity of Ⅸ degrees of Qianan wave in the masonry structure model for dynamic analysis and to study the whole seismic response process. The analysis of the example shows the methods of DDA and FEM can simulate the dynamic response process of masonry structure subjected to earthquake very well. Under the effect of a large earthquake, the bottom of masonry structure firstly began to show cracks and then led to structural collapse. This agrees with the earthquake damage phenomena seen in rural masonry structures in real large earthquakes.
FANG Jie,QIN Xiaojun,CAI Yongjian et al. Earthquake Response Analysis on Masonry Structural by Discontinuous Deformation Analysis and Finite Element Method[J]. jgg, 2016, 36(6): 520-.
