Fire resistant wood box beam

Details Fire resistant wood box beam Fire resistant wood box beam

1995-08-28

1997-05-06

Friedman, Carl D.

Static structures (e.g., buildings)

Machine or implement

527307, 527321, 527376, 527381, E04C 312, E04C 329

Patent

active

056259964

ABSTRACT:
A box beam has an interior and an exterior. Fire resistance is obtained by preventing the rapid progression of fire from the exterior to the interior. Fire resistant covers for the web elements and sufficiently sized wood flanges protect the interior of the beam, thus giving it improved fire safety. In some instances, longitudinal reinforcement elements embedded in protected areas of the flanges are desirable to provide additional stiffness and strength.

REFERENCES:
patent: 1368594 (1921-02-01), Aatila
patent: 1552474 (1925-09-01), Dornier
patent: 2074463 (1937-03-01), Davis
patent: 4854107 (1989-08-01), Roberts
National Evaluation Service, Inc. Report No. NER-405.
James Hardie Bldg. Products Brochure "Hardibacker Fiber Cement Interior Underlayment".
James Hardie Bldg Products Brochure "Hardiplank/Hardipanel Non-Combustible Fiber-Cement Exterior Siding".
Walker, Jerry A., "Gypsum--The Miracle Mineral Brief History and Prospects".
Lempfer, Karsten H., "Technology Trends in Gypsum Fiberboard".
Kozlowski et al, "Light-weight, Environmentally Friendly, Fire Retardant Composite Boards for Paneling and Construction".
Englert et al, "Properties of Gypsum Fiberboard Made by the USG Process".

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