| 摘要 |
PROBLEM TO BE SOLVED: To provide a fire resistive covering structure of a steel beam, which makes it unnecessary to change a distance between the steel beams of each story depending on the height of a building, which can keep the height of a room of each story of the building constant, and which is to be used for the building with two or more stories.SOLUTION: A fire resistive covering structure of a steel beam, which is to be used for a building with two or more stories, includes at least the H-shaped cross-section steel beam which comprises two flanges facing each other in parallel and one web having the flanges connected to both ends, a thermally-expandable fireproof sheet which is installed on an outer surface of the downside flange of the two flanges, and a sprayed noncombustible material which covers both side surfaces of the steel beam. |
