Disc buckle type adjustable steel supporting frame body and construction method thereof

The invention belongs to the technical field of building construction auxiliary facilities, and particularly relates to a disc buckle type adjustable steel supporting frame body and a construction method. Comprising a vertical rod, the top of the vertical rod is provided with a double-support jacking support, the double-support jacking support comprises a solid wire cylinder, a double-adjusting nut, a U-shaped tray and an upper supporting tray, the solid wire cylinder is sequentially provided with the double-adjusting nut, the U-shaped tray and the upper supporting tray from bottom to top, the U-shaped tray is supported through the double-adjusting nut, and the upper supporting tray is arranged at the top of the vertical rod; during use, the upper supporting tray directly supports a wood formwork concrete formwork specially designed for formwork matching, the U-shaped tray fixes and supports a main ridge through the jacking wire barrel nut, separation and transmission of vertical loads borne by the main ridge