Mounting structure for lap joint of aluminum alloy formwork and cantilever I-shaped steel

The utility model relates to a mounting structure for lap joint of an aluminum alloy formwork and cantilever I-shaped steel, which comprises an outer formwork and an inner formwork parallel to the outer formwork at an interval, and a cantilever layer wall pouring space is formed between the inner formwork and the outer formwork. The outer bottom formwork is fixedly arranged below the outer formwork, and the lower end of the outer bottom formwork is used for being fixedly connected with a floor formed through pouring; the outer bottom die is provided with an outer through hole with the adjustable size, and the overhanging I-shaped steel can penetrate through the outer through hole. The inner bottom die is fixedly arranged below the inner template, the inner bottom die and the outer bottom die are arranged in parallel at an interval, and the lower end of the inner bottom die is used for being fixedly connected with a floor formed by pouring; the inner bottom die is provided with an inner through hole with the a