NOVEL SUPPORTING LEG IN MOBILE SCAFFOLD

A supporting leg in a mobile scaffold. After the mobile scaffold is moved vertically into position, two joists (2) are horizontally inserted into a socket of a bridge pier (1); the bottom end of the supporting leg (3) is connected to the outer ends of the joists (2) by means of bolts; the supporting leg (3), a jacking cylinder (6) and a balance beam (7) provide support to a distribution beam (11), thereby supporting a main beam (5); and then steel bar binding and concrete pouring may be carried out on the bridge pier (1) to form a box beam (9), and the position where each supporting leg (3) penetrates the box beam (9) is a pre-arranged hole. Four supporting legs (3) are all arranged at the outer side of the front or rear ends of a bridge section, thus avoiding the dense section of poured connected reinforcing steel bars. After concrete curing is completed, a piston rod of the jacking cylinder (6) extends outwards to drive the corresponding balance beam (7) to move up, so that the distribution beam (11) drives