Steel structure butt joint supporting frame

The utility model relates to the technical field of steel structure construction auxiliary equipment, in particular to a steel structure butt joint supporting frame. A supporting column is arranged onthe supporting cross rod; top supporting rods are arranged at the tops of the supporting columns; the supporting cross rod is connected with the supporting base through a supporting column rotating shaft; a supporting column fixing block is arranged beside the supporting column fixing groove; a fixing block bolt hole is formed in the supporting column fixing block; base bolt fixing holes are formed in the upper surface of the supporting base. A steel structure supporting ring A is embedded in the middle of the supporting cross rod and is connected with the supporting cross rod through a spiral telescopic supporting column A arranged at the bottom of the structure supporting ring A; a steel structure supporting ring B is arranged on the top supporting rod; the steel structure supporting ring B is connected with a