The aseismic problems often encount

The aseismic problems often encountered in brick buildings with inner frame and bottom frame are as follows:1) Too large spacing between seismic cross walls2) Insufficient bearing capacity of transverse wall or outer longitudinal wall3) Stiffness ratio of bottom layer and transition layer does not meet the requirements4） The bottom floor is a single span frame, so the seismic redundancy is insufficient.1) When the spacing of seismic cross wall meets the requirements and the bearing capacity is insufficient, the reinforcement with steel mesh surface layer can improve the bearing capacity and structural ductility, and the construction is more convenient; when the original wall seismic bearing capacity is too different from the fortification requirements, the reinforcement with reinforced concrete slab wall can be used.2) If the distance between the seismic cross walls exceeds the limit, or the lateral seismic bearing capacity of the building is insufficient, the seismic wall reinforcement should be added first, because the effect of this reinforcement method is the best. Brick wall can be used as additional seismic wall; when the integrity of the floor is good and the lateral seismic bearing capacity is quite different from the requirements of fortification, reinforced concrete seismic wall can also be added for reinforcement.3) When the reinforcement of reinforced concrete column does not meet the requirements, steel cast-in-place reinforced concrete sleeve can be added to strengthen the bending resistance, shear resistance and the first resistance of the column, such as pasting fiber cloth, steel wire mesh polymer mortar surface layer, etc