Accession Number:

AD0694030

Title:

MOVABLE SHIELD FOR FALLOUT PROTECTION OF ABOVE-GROUND STRUCTURES: DURABILITY STUDY.

Descriptive Note:

Final rept. Feb 64-Jun 69,

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF

Personal Author(s):

• Scott,A. L.

Report Date:

1969-09-01

Pagination or Media Count:

13.0

Abstract:

A movable protective shield, consisting of a number of heavy vertical concrete louvers, was evaluated to determine its operation, weather resistance, and maintenance requirements. A test stand consisting of three panels, or louvers, was erected and exposed to wind, sun, sand, rain, and salt air for 4-12 years. Periodic measurements were made of the torque required to turn the panels after periods of immobility of up to 1 year. No increase was noted in the torque required to turn the panels during the test periods. On disassembly, the bearings were found to be in excellent condition. Author

Descriptors:

• (*FALLOUT
• *SHIELDING)
• (*BUILDINGS
• SHIELDING)
• WALLS
• CONCRETE
• OPERATION
• METEOROLOGICAL PHENOMENA
• MAINTENANCE
• ASSEMBLY
• BEARINGS
• PHYSICAL PROPERTIES

Subject Categories:

• Structural Engineering and Building Technology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE