Report of the US Nuclear Regulatory Commission Piping Review Committee. Volume 4. Evaluation of other loads and load combinations

Technical Report · Sat Dec 01 04:00:00 EST 1984

DOI:https://doi.org/10.2172/5998410· OSTI ID:5998410

Six topical areas were covered by the Task Group on Other Dynamic Loads and Load Combinations as described below: Event Combinations - dealing with the potential simultaneous occurrence of earthquakes, pipe ruptures, and water hammer events in the piping design basis; Response Combinations - dealing with multiply supported piping with independent inputs, the sequence of combinations between spacial and modal components of response, and the treatment of high frequency modes in combination with low frequency modal responses; Stress Limits/Dynamic Allowables - dealing with inelastic allowables for piping and strain rate effects; Water Hammer Loadings - dealing with code and design specifications for these loadings and procedures for identifying potential water hammer that could affect safety; Relief Valve Opening and Closing Loads - dealing with the adequacy of analytical tools for predicting the effects of these events and, in addition, with estimating effective cycles for fatigue evaluations; and Piping Vibration Loads - dealing with evaluation procedures for estimating other than seismic vibratory loads, the need to consider reciprocating and rotary equipment vibratory loads, and high frequency vibratory loads. NRC staff recommendations or regulatory changes and additional study appear in this report.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (USA)
• OSTI ID: 5998410
• Report Number(s): NUREG-1061-Vol.4; ON: TI85900651
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
CONTROL EQUIPMENT
DYNAMICS
EARTHQUAKES
EQUIPMENT
EVALUATION
FLOW REGULATORS
FREQUENCY ANALYSIS
MECHANICS
NATIONAL ORGANIZATIONS
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
PIPES
POWER PLANTS
REACTOR SAFETY
RELIEF VALVES
SAFETY
SEISMIC EVENTS
STRESS ANALYSIS
THERMAL POWER PLANTS
US NRC
US ORGANIZATIONS
VALVES
WATER HAMMER