Chapter 1


This book has been prepared as a guide to the structural and leak-tight integrity design and analyses of structures, distribution systems and components (SSC), which are addressed by construction standards prepared by the American Society of Mechanical Engineers, ASME and other closely related Standards. Particular application is to SSC, which are subject to extreme load phenomena, whether of a design basis external natural, man-induced or accident phenomena. The book is intended for use in assisting structural-mechanical engineers in their supply of engineering services to the nuclear, petrochemical and biomedical industries.

  • 1.1 Purpose
  • 1.2 Scope
  • 1.2.1 Structures
  • 1.2.2 Distribution Systems
  • 1.2.3 Components
  • 1.2.4 Standards
  • 1.3 Facilities Requiring Consideration of Extreme Loads
  • 1.3.1 Introduction
  • 1.3.2 Nuclear Facilities
  • 1.3.3 Petrochemical and Biomass Facilities
  • 1.3.4 Bio-Hazard Facilities
  • 1.4 Description of Potential Design-Basis Hazards
  • 1.5 Loads Typically Considered in Design of Safety-Related Structures, Systems and Components (SSC) in High-Hazard Facilities
  • 1.5.1 Service Load
  • Design Loads
  • 1.5.2 Severe Loads
  • Human Occupancy
  • Natural Hazards
  • Operating Transients Occasional and Upset Loads
  • 1.5.3 Extreme Loads
  • Natural Phenomena Hazards
  • Man-Induced External Hazards
  • Design-Basis Accidents
  • Fire
  • 1.6 Categorization and Classification of Functional Safety-Related Mission Essential and Performance Categorization of SSC and Procedures in Hazardous Facilities
  • 1.6.1 Nuclear Industry
  • Hazard Categorization
  • Hazard Category 3 Facilities
  • Nuclear Hazard Category 2 Facilities
  • Hazard Category 1 Facilities
  • Hazard Category 1s Facilities
  • Functional and Performance Goals for Safety-Related SSC
  • Safety Goals
  • Performance Goals
  • Functional (Safety) Classifications of SSC
  • Functional and Performance Classification of Safety-Related SSC
  • Quality Classification
  • Design (Limit State) Classification
  • Recent Changes to Safety Classification of SSC Used in Nrc-Regulated Facilities
  • 1.6.2 Petrochemical Industry
  • Introduction
  • Natural Hazards
  • External Blast Load
  • 1.6.3 Bio-Medical Industry
  • 1.7 References

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