assembly type steel frame ladder of reinforcement concrete building

摘要

The present invention relates to a prefabricated steel stairway connection structure and construction method of a reinforced concrete building of a new structure that can improve the construction quality while having an effect of shortening the air construction.;According to the present invention, a prefabricated steel stairway unit 6 is installed in the opening of the staircase room under construction, and the steel stairway unit 6 is connected to the slab formwork 2 by using the connecting member 10. In the connection structure of the prefabricated steel stair step, the connecting member 10 is composed of an angle member including a vertical plate (10a) and a horizontal plate (10b) extending horizontally from the bottom of the vertical plate (10a), The connecting member 10 is mounted on the slab formwork 2 so that the horizontal plate 10b faces the steel frame stair unit 6 opposite to the slab formwork 6, and the upper end of the steel stairs unit 6 or The lower end is provided over the horizontal plate (10a) of the connecting member 10 is provided with a connection structure of the prefabricated steel stair step, characterized in that installed relatively horizontally movable relative to the connecting member (10).