To solve the problems of repair and reinforcement of existing old rural houses

taking a single-layer masonry structure with two bays in Beijing as the prototype

according to the idea of inner frame reinforcement

a reinforcement method based on embedded light steel frame reinforcement and supplemented by steel plate reinforcement was proposed

and a 1/4-scale masonry structure shaking table model was designed for shaking table test. Test results show that the model structure had obvious damage under the action of small earthquake

and the transverse wall of the structure had obvious extraversion under the action of moderate earthquake and large earthquake. However

due to the reinforcement and restraint effect of steel frame and steel strip

the structure did not collapse

the degree of the external flashover was controlled within the safe range

and the strengthened structure achieved the goal of “no collapse in large earthquakes”. With the successive loading of seismic loads

the natural frequency of the structure decreased gradually. With the increase in seismic intensity

the acceleration amplification coefficient of the test model decreased on the whole. When the inner steel frame and steel strip were used for reinforcement

the acceleration amplification coefficient of the structure had a slight increase. The displacement of the structure increased with the increase in the earthquake magnitude

and the displacement of the front cornice was greater than that of the rear cornice

leading to the torsion effect. The inner steel frame remained undamaged after the earthquake

which avoids the overall collapse of the structure and ensures the safety of the structure.