Gustaferro, A H
Manager, Fire Research Section, Portland Cement Association Research and Development Laboratories, Skokie, Ill.
Pages: 17 Published: Jan 1970
ASTM Methods E 119 designate several temperature criteria as end points for fire tests. In tests of walls, floors, and roofs, the temperature rise of the unexposed surface is limited to 250 F average or 325 F at any one point. Steel temperatures are limited in tests of certain types of elements. This paper examines the background for these temperature limits by reviewing published data; new data are presented in some cases. The unexposed surface temperature criteria should be re-examined. Limiting steel temperatures are not valid for structural members in which the stresses are altered significantly by the effects of fire.
beams, concrete, failure, fire tests, floors, reinforced concrete, restraint, roofs, slabs, steel construction, thermal expansion, walls, evaluation, tests
Paper ID: STP44712S