| 摘要 |
PROBLEM TO BE SOLVED: To provide a double floor structure, which is free from obstruction to a supply air current, a wiring/piping passage or the like by a weir, a barrier or the like, is equipped with a plenum chamber also functioning as a maintenance space, and can effectively secure the support strength, support rigidity, stability and the like of a floor component. SOLUTION: The double floor structure (10) has a floor slab (17) for horizontally dividing a room (11) from a lower floor or the ground, and the floor component (18) disposed above the floor slab while forming a floor. The plenum chamber (20) is formed between the floor slab and the floor component. The loads on the floor component and a substrate material thereof are supported by an upper chord (81) of a beam (80) having a truss structure, and the load of the floor slab is supported by a lower chord (82) of the beam. The height dimension (S) of the plenum chamber is set to a dimension corresponding to the beam depth (G) of the beam. COPYRIGHT: (C)2011,JPO&INPIT |
