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32 7.0 Floor Attachment Systems When an intermediate floor system is designed into the FASWALL®Wallforms structure, it is generally assumed to be of wood. Because these floors do not have components that can adequately support the dead weight of the subsequent wall assembly above it, the typical design criterion is to"hang"the floor from the inside of the wall structure. This technique involves the use of a perimeter rim joist that is secured to the vertical wall by a series of"hooked" 1/2"x 8" anchor bolts that are cast into the concrete core of the wall through the side of a Wallform(see Figure 7). 7.1 Rim Joists and Rim Joist Anchor Bolts After the location of the rim joist for the floor is laid out on the wall, the locations of the anchor bolts are also marked on the surface of the Wallforms, on a vertical centerline visually above the top edge position of the rim joist. The rim joist is then held in position on the wall and the vertical centerlines of the anchor bolt locations projected and marked through the center of its width. At these points, 1/2"holes are drilled through the rim joist. After the holes are drilled through the rim joist, the rim joist is again held in position on the wall and the holes used as templates to mark the precise locations of the anchor bolts on the Wallforms. Using a circular"hole-saw" mounted in a 1/2"drill, a 3" diameter hole is cut into the side of the wallform at each anchor bolt location. The 1/2"x 8" anchor bolts are then affixed, with nuts and washers through the 1/2"holes in the rim joist. They also may be tied to the rebar inside the cell. The rim joist, with anchor bolts affixed, is then positioned on the wall with the"hooked" ends of the anchor bolts inserted into the 3"diameter holes in the Wallforms. While the rim joist is held in position, it is secured to the wall with 4"coarse-thread screws. ShelterWorks General Application and Technical Information (GATI)version 2.5