| 摘要 |
PROBLEM TO BE SOLVED: To reduce a required reinforcement amount in a reactor containment of prestressed concrete structure. SOLUTION: PC steel wires 7 are displaced to a wall-thickness-directional outside in a leg part of a circumferential wall part 2 to impart, as prestress force, bending moment P2 in a direction to make deformation outsides with respect to the leg part of the wall part 2, in this reactor containment of the prestressed concrete structure of which the cylindrical circumferentail wall 2 is erected on a foundation slab 1, of which the semi-spherical roof part is provided integrally in a top part thereof, in which a series of the PC steel wires 7 of reversed U-shapes are arranged in the wall part and the roof part, and for which prestress is introduced by tensioning the PC steel wires to be fixed to the foundation slab.
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