| 摘要 |
PURPOSE:To reduce unevenness of equivalent external pressure, by parallelly arranging each group of reverse U-shaped tendons, divided into three groups respectively in a plane, including the axial line of a dome part further almost equally dividing said dome part, in the case of a container used in a pressurized light-water type power reactor or the like. CONSTITUTION:A reverse U-shaped tendon 11, being divided into three groups parallelly arranged respectively in three perpendicular surfaces P1, P2, P3 including an axial line l of a dome part 10c further dividing the dome pat 10c into almost equal six parts, is arranged at an equal interval in the peripheral part of a PCCV 10. In this constitution, a concrete made container, equally arranging each reverse U-shaped tendon 11 in the dome part 10c of the PCCV 10, enables unevenness of equivalent external pressure by the tendon to be decreased as compared with a conventional PCCV. |
