PREFABRICATED WORK PLATFORM FOR CYLINDRICAL CONCRETE STRUCTURE

PROBLEM TO BE SOLVED: To provide a prefabricated work platform constructed at a height at which maintenance of a cylindrical concrete structure is required, by sequentially suspending and stacking work platform units inside the large-sized vertical cylindrical concrete structure. SOLUTION: The work platform unit 8 is installed by connecting a plurality of platform frame bodies 3 together in the cylindrical concrete structure 1. In a work frame body 3, at least four supports 4 are erected in such a manner as to be positioned at rectangular corners, respectively; the adjacent supports 4 are connected together by vertically providing a plurality of tires of horizontal members 5; and a platform plate 6 is placed on the horizontal member 5. In the work platform unit 8, a plurality of the platform frame bodies 3 are arranged in such a manner as to come into contact with an inner wall surface of the cylindrical concrete structure 1 in the plan view of the cylindrical concrete structure 1, and constituted as one unit by being connected to each other by means of a horizontal connecting material 7; and a sliding member 9, which slides by coming into contact with the inner wall surface of the cylindrical concrete structure 1, is mounted in the outer peripheral position of the work platform unit 8. COPYRIGHT: (C)2010,JPO&INPIT