Preventive measure of structural strengthening

Preventive measure of structural strengthening: CFRP strengthening, steel plate strengthening, post installed anchoring.

Item	Common problems	Preventive measure
Post installed anchor	The glue is not full enough; the distance between the steel bar and the hole wall is uneven	Glue injecting gun is used to post installed anchor, and two times correction is made after steel bar is implanted. The length of exposed steel bar is reasonably reserved, and the difficulty of planting bar is reduced.
Externally bonded CFRP wrap	The bond is not firm; carbon fiber cloth is not soaked; hollowing, etc.	Strengthen the grinding of the base and brush the primer glue. The carbon fiber cloth is soaked with carbon fiber adhesive glue and then paste. Roll along the same direction, carbon fiber selvage suitable for more glue.
Pate steel plate	Hollowing	The steel plate and the concrete surface are evenly coated with steel plate adhesive. Strictly control the thickness of the steel plate glue. Pressure perfusion glue is used for construction.