Damping in low-aspect-ratio, reinforced concrete shear walls

Technical Report · Sat May 01 00:00:00 EDT 1993

OSTI ID:6307331

Farrar, C R ^[1]; Baker, W E ^[2]

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1. Los Alamos National Lab., NM (United States)
2. New Mexico Univ., Albuquerque, NM (United States)

This report summarizes the information obtained from static and dynamic tests of scale-model Seismic Category 1 structures (exclusive of containment) on the damping of low-aspect-ratio, reinforced concrete shear walls. The report reviews experimental assessments of damping in low-aspect-ratio shear walls that have been reported in the literature and presents a summary of the types of structures and structural elements tested. It discusses the testing methods and the methods used to determine equivalent viscous damping ratios (both directly and indirectly), a numerical study that examines the accuracy of various methods for estimating damping from measured acceleration input and response data, and tabulates the damping results. The report concludes by graphically showing the changes in the damping of the shear walls as a function of the peak nominal base shear stress experienced by the structure during simulated seismic events. Also included are comparisons of the damping results obtained in this program with those obtained by other investigators.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (United States). Div. of Engineering; Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USNRC; Nuclear Regulatory Commission, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6307331
• Report Number(s): NUREG/CR-5776; LA-12201-MS; ON: TI93014901
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
22 GENERAL STUDIES OF NUCLEAR REACTORS
NUCLEAR FACILITIES
SEISMIC EFFECTS
NUCLEAR POWER PLANTS
REINFORCED CONCRETE
DAMPING
DYNAMIC LOADS
FREQUENCY ANALYSIS
RESPONSE FUNCTIONS
SIMULATION
STATIC LOADS
TEST FACILITIES
TESTING
WALLS
BUILDING MATERIALS
COMPOSITE MATERIALS
CONCRETES
FUNCTIONS
MATERIALS
POWER PLANTS
REINFORCED MATERIALS
THERMAL POWER PLANTS
360603* - Materials- Properties
220900 - Nuclear Reactor Technology- Reactor Safety
220200 - Nuclear Reactor Technology- Components & Accessories