The utility model relates to a bridge double-Y special-shaped
pier body supporting device which comprises a deformed
steel bar pull rod, a first wedge-shaped
cushion block, a transverse back
ridge and a disc buckle supporting frame, and the disc buckle supporting frame is supported below a formwork support of a double-Y special-shaped
pier body. The deformed
steel bar pull rod transversely penetrates through two outer side face formworks of the formwork support, a plurality of first wedge-shaped
cushion blocks are arranged on the outer side face formworks, the inclined faces of the first wedge-shaped
cushion blocks abut against the two outer side face formworks of the formwork support respectively, and the side faces, away from the outer side face formworks, of the first wedge-shaped cushion blocks are locking faces. Transverse back ridges are arranged on the locking face of the first wedge-shaped cushion block, the two ends of the deformed
steel bar pull rod penetrate through the two corresponding transverse back ridges respectively, the two ends of the deformed steel bar pull rod are provided with locking nuts abutting against the transverse back ridges respectively, and the locking nuts are double-nut locking mechanisms. Through external and internal support of the double-Y special-shaped
pier, the support structure achieves the purposes of high efficiency, safety, high quality and convenient construction.