Structure Analysis and Sealing Design of Reactor Building for China Advanced Research Reactor

CARR building is a typical structure of short-term cycle,which is a complex consisted of various structural types and structural cells of different materials,integrated internal force of the partial struc- ture is analyzed by Algor code,local stress of the building structure is analyzed by ANAYS code, and calcula- tion is carried out for the pre-stressed concrete structure by PREC code.The analysis and calculation show that the maximum displacement of the structure occurs in the middle of the side wall,and the displacement under hit is about 2.28mm.The parts with larger stress are the interfaces between the top plate and side wall, the side wall and the floor plate,and the side walls.The maximum stress is 2.7MPa.Calculated deflection of the girder is 13.5mm,camber is 7.5mm,and pre-stress is 0.745.In order to control the crack of the reinforced concrete components,partial roof is made of pre-stressed concrete structure.The inner liner for sealing of the building is expoxy and glass fabric.