| 摘要 |
<P>PROBLEM TO BE SOLVED: To satisfy fire resistance efficiency while lowering a ceiling plenum. <P>SOLUTION: A floor framing structure 10 has a H-beam 12 which is bridged between beams 46. A multiple number of studs 14 are jointed at both side of a web 16 of the H-beam 12, and a concrete slab 18 is installed as it is integrated with the H-beam 12 and the studs 14. The concrete slab 18 and the H-beam 12 are strongly jointed with the studs 14 installed at the both side of the web 16. The thickness of the web 16 of the H-beam 12 is regarded as H1, and the thickness of the concrete slab 18 is regarded as H2 as it covers more than overall width from a top edge to a bottom edge of the H1 of the web 16. Main reinforcement and distribution bars are arranged inside the concrete slab 18, and the height of a top face 18U of the concrete slab 18 is regarded as the same as a top face of a upside flange 12U of the H-beam 12. The H-beam 12 is buried in the concrete slab 18 except for a top face of an upside flange 15U and an undersurface and a side face of a downside flange 15D. <P>COPYRIGHT: (C)2012,JPO&INPIT |
