Tool type formwork for transforming engineering support-free system and construction method of tool type formwork

The invention relates to a tool type formwork for transforming an engineering support-free system and a construction method of the tool type formwork, and belongs to the field of building engineering construction. The two sides of a cross beam of the tool type formwork for transforming the engineering support-free system are lapped on an original structure bridging piece, a U-shaped groove in the middle of the cross beam is clamped in the position of a decorative column, a bolt and a reverse small cross beam are connected and wrapped, a screw rod is inserted between the cross beam and an aluminum alloy, a nut is tightened at the bottom of an aluminum alloy formwork, concrete is poured between the cross beam and the aluminum alloy formwork, the periphery of the screw rod is sleeved with a sleeve, and the screw rod cannot be poured and fixed by the concrete and can be recycled due to arrangement of the sleeve. According to the construction method of the tool type formwork for transforming the support-free syste