Reinforcement of RC structure

1) the unidirectional frame should be reinforced or transformed into a two-way frame, or measures such as strengthening the integrity of the building and roof, and adding some aseismatic walls and aseismatic bracing members at the same time.

2) when a single span frame is not in conformity with the requirements of appraisal, the anti lateral force components such as aseismic wall, wing wall and seismic support shall be added to the spacing larger than 24m of the aseismatic wall, which is larger than the frame shear wall structure, or the Dan Kua frame of the corresponding axis should be changed to the multi span frame.

3) when the frame beam column steel bar or bearing capacity does not meet the requirements of appraisal, it can be reinforced by steel jacketing, enlarging section method, sticking steel plate or sticking carbon fiber reinfroced polymer(CFRP) fabric and so on.

4) when the axial compression ratio of the frame column does not conform to the identification requirement, the enlargement section method can be used to reinforce the frame column.

5) when the stiffness of the building is weak, uneven or obvious torsion effect, we can set up reinforced concrete aseismatic wall or wing wall reinforcement, and also set up support reinforcement.

6) when the reinforcement of reinforced concrete aseismic wall does not meet the requirements of identification, the original wall or additional end column and wall can be added.

7) when the staircase members do not meet the requirements of identification, the steel plate, carbon fiber fabric or increase section method can be used to reinforce the staircase.