| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite fire resistant structure superior in fire resistance using a steel material and heavy concrete. SOLUTION: This steel and heavy concrete composite fire resistant structure is characterized by integrating the heavy concrete having a density of 3.0 or more, desirably 3.5 or more in close contact into the steel material. The steel and heavy concrete composite fire resistant structure is formed by integrating the heavy concrete having the density of 3.0 or more, desirably 3.5 or more in close contact into a closed space or a partially opened space or a steel material reverse surface of, for example, a structural steel material or a structural iron material such as cast iron. COPYRIGHT: (C)2007,JPO&INPIT
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