How to strengthen the load-bearing beam with eight-shaped pattern as follows:
1. Pour an extra layer of concrete on the upper and lower sides and implant some steel bars to increase the bearing capacity of the entire beam. .
2. Paste steel plates on the surface of the beam to increase the beam, increase the number of original steel bars, and improve its stiffness, compression resistance and shear resistance.
3. Paste carbon fiber on the bottom of the beam to improve the overall load-bearing capacity.