Rapid manufacturing and mounting method of steel structure platform

A rapid manufacturing and mounting method of a steel structure platform comprises the following steps that (1) supporting columns are manufactured according to the ground smooth situation and piled up after being manufactured; (2) a mounting platform framework is welded and mounted on the ground of a mounting area; (3) angle steel is welded and mounted on the platform framework for reinforcing the framework and meanwhile used as checkered steel plates for fixing; (4) parts of the checkered steel plates are laid and mounted on the platform framework; (5) parts of railings are mounted on the platform framework to serve as safety protection of the platform; (6) after the whole platform plane is manufactured, the whole platform plane is overall lifted through a crane machine; (7) after the whole platform plane is overall lifted to the design height, the levelness of the platform plane is rectified, (8) under the premise of well making safety protection measures, welding, connecting and fixing of the supporting co