| 摘要 |
PURPOSE:To lessen weight by reduction of the thickness of a member to correspond to a span structure, by utilizing a prestressed extruded member as a molding frame and burying it as it is as a surface member. CONSTITUTION:A fastening member 4 is inserted into pierced holes 2 of a mold member and protruding from the fixing hole of the fixture 3 attached to the both ends of the mold member. Next, nuts 6 are pushed in screws 5 to provide a posttension to the fastening member 4 for a prestressed extruded member. The prestressed extruded members 1 are laid down on a beam 7 of steel frame. And concrete is placed thereon to make a slab. In this way, the necessary volume for a support I can be reduced and the prestressed extruded member 1, utilized as a mold member after the concrete is cured, can be used for the surface member as it is. |
