STRUCTURE FOR PREVENTING FIRE SPREADING IN FIRE COMPARTMENT HAVING CFT COLUMN, AND METHOD FOR PREVENTING FIRE SPREADING THEREFOR

PROBLEM TO BE SOLVED: To effectively block fire spreading due to heat conduction via a CFT column (concrete-filled steel column), to ensure the performance of prevention of fire spreading, and to use the CFT column without a fire resistive sheath, in a fire compartment having the CFT column. SOLUTIO...

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Bibliographic Details
Main Authors MATSUTANI TERUO, YUTANI TAKAO, ONO TETSUO, KOBASHI SOUICHI
Format Patent
LanguageEnglish
Published 18.01.2002
Edition7
Subjects
BUILDING
CEILINGS
FIRE-FIGHTING
FIXED CONSTRUCTIONS
FLOORS
GENERAL BUILDING CONSTRUCTIONS
HUMAN NECESSITIES
INSULATION OR OTHER PROTECTION OF BUILDINGS
LIFE-SAVING
ROOFS
WALLS, e.g. PARTITIONS
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Summary:PROBLEM TO BE SOLVED: To effectively block fire spreading due to heat conduction via a CFT column (concrete-filled steel column), to ensure the performance of prevention of fire spreading, and to use the CFT column without a fire resistive sheath, in a fire compartment having the CFT column. SOLUTION: A thermal insulation slab formed of a noncombustible material is set at a joint portion between the CFT column and a fire wall, and a section in the vicinity thereof is set as a heat dissipation section of fire heat into internal concrete by a thermal shielding function of the thermal insulation slab. The heat dissipation section is set to at least 300 mm, and the heat insulation slab is set to have the thermal conductivity of 0.2 or less and the thickness of 20 mm or more.
Bibliography:Application Number: JP20000196617