BS 4975:1990
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
30-03-1990
Foreword
Committees responsible
Specification
Section one. General
1.1 Scope
1.2 Definitions
1.3 Basic considerations
1.4 Responsibilities
1.5 Information and requirements to be agreed and to
be documented
1.6 Interpretation
Section two. Materials
2.1 Concrete
2.2 Reinforcement
2.3 Prestressing system
2.4 Liners (including supported penetration liners)
Section three. Design
3.1 General
3.2 PCPV structure
3.2.1 Design considerations
3.2.2 Analysis for service load conditions
3.2.3 Permissible stresses in concrete and
reinforcement
3.2.4 Ultimate load analysis
3.3 Liners (including supported penetration liners)
3.3.1 General
3.3.2 Effects of irradiation
3.3.3 Design of liner
3.3.4 Design of ties and shear connectors
3.3.5 Design of corners
3.3.6 Design of penetration liners supported by
concrete
Section four. Manufacture
4.1 Concrete
4.2 Reinforcement
4.3 Prestressing system
4.4 Liners (including supported penetration liners)
Section five. Inspection and tests
5.1 Concrete
5.2 Reinforcement
5.3 Prestressing system
5.4 Liners (including supported penetration liners)
Section six. Steel closures and unsupported penetrations
6.1 General
6.2 Materials
6.3 Design
6.4 Manufacture
6.5 Monitoring and inspection
6.6 Restrictors
Section seven. Insulation and cooling systems
7.1 General
7.2 Fault analysis
Section eight. Automatic pressure relief devices
8.1 Automatic pressure relief devices
Section nine. Testing and surveillance of completed
structure
9.1 Vessel proof test
9.2 Vessel leak test
9.3 Vessel vacuum test
9.4 Surveillance
Appendices
A. Simplified concepts of the development and analysis
of stresses in a PCPV
B. Design and methods of analysis
C. Local stresses
D. Design limits for multiaxial compressive stresses in
concrete
E. Ultimate load conditions
F. Corrosion protection of prestressing tendons
G. Grouting of ducted prestressing tendons
H. Effect of fast neutron irradiation on the properties
J. Effect of fast neutron irradiation on the mechanical
properties of ferritic steels
K. Recommended practice for assessment of liners
(including supported penetration liners) subject to
fatigue
L. Construction of control charts for testing wire,
strand and bar
M. Optional documentation for supply with the vessel
N. References
Tables
1. Principal compressive field stresses in concrete
2. Permissible stresses in steel reinforcement
Figures
1. Design limits for multiaxial compression
2. Typical fast neutron dose attenuation in a PCPV wall
3. Effect of irradiation on the dimensional changes of
limestone aggregates, cement paste and a limestone
aggregate concrete
4. Design fatigue curve for steels for temperatures
up to and including 375 deg C
5. Construction of test fatigue curve
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