Loose steel buttress

The utility model discloses a loose steel buttress which is composed of a lower base, a side sliding seat and an upper cushion block. The lower seat is arranged at the nethermost part, the side sliding seat is stacked on the lower base, and the upper cushion block is stacked on the side sliding seat. Compared with the prior art, by adopting the movable connection structure which is composed of the lower base, the side sliding seat and the upper cushion block, the loose steel buttress can carry out freely loosening and disassembling according to the requirements of the buttress arrangement, so as to adjust the height of the buttress; the loose steel buttress is suitable for the shifting, carrying and the like of various heavy objects, particularly for the positioning shifting of large-sized steel structure products, such as ship buttress changing, ship shifting and launching. The loose steel buttress has the characteristics of simple structure, convenient manufacturing, large supporting force, good safety, hig