Support structure for a nuclear reactor
This patent describes a nuclear reactor having a nuclear reactor vessel, a support structure comprising: (a) a basemat and an unitary reinforced concrete core having exterior walls and containing an open vertical void for placement of a nuclear reactor vessel. The void extending from the top of basemat to the top surface of the unitary reinforced concrete core, the concrete core providing structural support to the reactor vessel at the upper end of the reactor vessel and upper end of the core and the core providing shielding for radiation from the reactor vessel; (b) the reinforced concrete core having concrete ligaments in the unitary reinforced concrete core between the void and the edge of the concrete core. The ligaments extending from the top of the core to the basemat where the core is integrally connected to the basemat and the ligaments being large enough to assure that the deformation of support structure is shear controlled and (c) the unitary reinforced concrete core and basemat having a distribution of mass and stiffness which provides a fundamental horizontal natural frequency of vibration greater than 10 Hertz for the unitary concrete core and basemat and greater than the fundamental natural frequency of the supported reactor vessel.
- Assignee:
- Stone and Webster Engineering Corp., Boston, MA
- Patent Number(s):
- US 4786462
- Application Number:
- TRN: 89-007004
- OSTI ID:
- 6371834
- Resource Relation:
- Patent File Date: Filed date 21 Feb 1984
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
REACTOR VESSELS
SUPPORTS
DESIGN
HZ RANGE
MECHANICAL VIBRATIONS
RADIATION PROTECTION
REACTOR SAFETY
REINFORCED CONCRETE
SHIELDS
TENSILE PROPERTIES
WALLS
BUILDING MATERIALS
CONCRETES
CONTAINERS
FREQUENCY RANGE
MATERIALS
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
REINFORCED MATERIALS
SAFETY
220900* - Nuclear Reactor Technology- Reactor Safety
220200 - Nuclear Reactor Technology- Components & Accessories