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Author
Son, B. C.
Title
Fire Endurance Test on a Steel Tubular Column Protected with Gypsum Board. Final Report.
Coporate
National Bureau of Standards, Gaithersburg, MD
Sponsor
Department of Housing and Urban Development, Washington, DC
Report
NBSIR 73-165, April 1973, 19 p.
Distribution
Available from National Technical Information Service
Contract
IAA-H-16-70
Keywords
fire endurance | fire tests | multifamily housing | Operation Breakthrough
Abstract
As a part of the evaluation of housing systems for Operation Breakthrough a standard fire endurance test was performed at the National Bureau of Standards on a load-bearing steel column construction for use in single-family attached and multifamily low-rise housing. The test method was generally in accord with the requirements of ASTM E 119, Standard Methods of Fire Tests of Building Construction and Materials, for a loaded column. The applied load was 7110 pounds per column and the test results are valid only for columns of such construction loaded at or below the stress level developed by this loading. The 3 in. x 2 in. x 3/16 in. rectangular hollow tubular steel column was protected with two layers of gypsum board. The fire endurance of the column assembly was established at 59 minutes, when structural failure occurred.