masonry structures;  reliability;  constraints;  Invalidity;  Monte Carlo Law

Using the reliability theory, according to the design specifications adopted by the existing brick masonry structure in China, the test model of seismic and non-seismic brick masonry wall was established, and the Monte-Carlo random simulation method was used to test and analyze these two types of models under the action of horizontal earthquake, and according to the statistical principle, the conclusion and cause of the failure part of the brick masonry structure wall mainly occurred in the corner of the wall opening, and the common working coefficient of constrained masonry was verified.