JUNCTION STRUCTURE OF REACTOR CONTAINER DIAPHRAGM FLOOR AND FOUNDATION OF NUCLEAR REACTOR BODY

摘要

PURPOSE:To rationalize the execution of works by constituting this structure so that a vertical load for working on a diaphragm floor is transferred directly by bearings, and a load in the radial direction and the tangential direction can be transferred by plural studs provided on the top part of a nuclear reactor body. CONSTITUTION:On a diaphragm floor 2, a radial direction bar 7 and a peripheral direction bar 10 are installed in the upper and the lower ends, and on the nuclear reactor body foundation side, each upper and lower end of the radial direction bar 7 is joined. In this structure, studs 11 corresponding to yield strength in the radial direction and the tangential direction and a load in the tangential direction are fixed and placed by welding on a top part horizontal plate 12 of a notch part of a foundation 6 of the nuclear reactor body. In this case, at the time of bar arrangement execution of works in a job site, trouble for joining the lower end bar of the radial direction bar to a screw coupler welded to the foundation of the nuclear reactor body is saved, and the execution of works in a job site is rationalized.