Accession Number:

AD0680429

Title:

DESIGN CRITERIA FOR FLEXIBLE UTILITY CONNECTIONS

Descriptive Note:

Technical rept.

Corporate Author:

NAVAL CIVIL ENGINEERING LAB PORT HUENEME CA

Personal Author(s):

Report Date:

1968-12-01

Pagination or Media Count:

72.0

Abstract:

The existing design of flexible utility connections used in naval installations incorporates a flexible bronze hose hanging freely within a corrugated metal tube so that it can move without being highly stressed at the soil-structure interface. A study was made of this design and of possible modifications to it. Theoretical predictions were formulated for flexibility and dynamic strength the theories were tested and partially verified experimentally in the laboratory. The flexibility of a hose was related to the manufacturers specified minimum allowable bend radius. The dynamic strength was expressed in terms of peak acceleration and hose weight and length in a semiempirical relationship suitable for use in design. It is recommended that the results of the present study be incorporated in an appropriate design manual, subject to verification by full-scale field tests, and that a summary be compiled of means to predict the relative displacements between a buried structure and the surrounding soil.

Subject Categories:

  • Couplers, Fasteners and Joints
  • Explosions
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE