| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel floor structure which achieves the entire weight reduction in spite of including steel floor joists. SOLUTION: The steel floor structure K is formed of steel piers 10, steel sleepers 20, the steel floor joists 30, and floor panels 40. The steel sleeper 20 is a self-reinforced steel sleeper consisting of a first member B1 forming an upper surface 21, and a second member B2 forming side surfaces 22, 23 and a lower surface 24, wherein the upper surface 21 is connected to the side surfaces 22, 23 by calking. The steel floor joist 30 is a self-reinforced steel floor joist consisting of a first member B4 forming a lower surface 31, and a second member B4 forming side surfaces 32, 33 and an upper surface 34, wherein the lower surface 31 is connected to the side surfaces 32, 33 by calking. COPYRIGHT: (C)2004,JPO
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