The paper describes a study in which two test structures (identical reinforced arches) were constructed with the intention of reducing skin friction as much as possible in the second arch. The second arch was covered with two layers of Teflon, with one of the Teflon layers attached to the arch ring. The arches were buried in a sand backfill and were subjected to a dynamic overpressure. Pretest linear and nonlinear finite element analyses of the test structures were conducted, as well as simplified calculations and an analysis of available test data. Results were used to calibrate transducers and to determine an appropriate dynamic test environment, i.e., an environment in which the response of the arches would be enough so that any differnece in response mode could be observed. Results of the pretest anslyses, along with an evaluation of the test results are presented. It was found that structural loads induced by skin friction can possibly affect the failure mode and ultimate capacity of buried arches.

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  • Accession Number: 00486440
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 31 1989 12:00AM