Downward pressing type external prestressing CFRP material reinforcing system and construction method thereof

The invention discloses a pressing type external prestressing CFRP material reinforcing system and a construction method, the pressing type external prestressing CFRP material reinforcing system comprises a to-be-reinforced structural member and a CFRP reinforcing member, the two ends of the CFRP reinforcing member are connected with the to-be-reinforced structural member through end fixing mechanisms, at least one supporting mechanism is arranged on the to-be-reinforced structural member, and the supporting mechanism comprises a supporting seat; a first steering mechanism is arranged between the supporting seat and the CFRP reinforcing piece, the first steering mechanism is connected with the supporting seat through a supporting screw rod, a limiting nut is further arranged on the supporting screw rod, and a prestress adjusting mechanism is further detachably arranged on the first steering mechanism; the prestress adjusting mechanism is used for adjusting the height of the first steering mechanism on the sup