Seismic strengthening methods for reinfroced concrete structures

Improve the performance of column and beam for seismic strengthening (1) externally added reinforced concrete surface layer (2) bonded steel plate reinforcement (3) steel jecketing (4) carbon fiber strengthening

Seismic strengthening using carbon fiber fabric

Seismic strengthening by steel plate

Seismic strengthening methods for structures

Structure	Seismic resistance characteristics	Seismic strengthening method
Masonry structure	Aseismic capacity of aseismatic wall is insufficient	(1) outsourced reinforced concrete surface layer (2) the surface layer of reinforced concrete mortar
	Insufficient deformation performance of masonry	Seismic walls are added to reduce earthquake resistance of members with weak seismic capacity
	The integrity of the building is not good	Improve the aseismic integrity of the structure (1) adding a beam and a structural column (2) post installed rebar (3) pressure grouting
Frame structure	Insufficient seismic bearing capacity of frame columns and beams	Improve the performance of column and beam (1) externally added reinforced concrete surface layer (2) bonded steel plate reinforcement (3) steel jecketing (4) carbon fiber strengthening
Frame structure	Lack of seismic deformation capacity of frame columns and beams	Increase the number of structural seismic walls and reduce the seismic action of beams and columns with poor seismic performance