FOUNDATIONS The design of the foundation for a K-span building depends  on  the  building’s  size,  existing  soil  conditions, and  wind  load.  The  foundations  for  the  buildings  are simple and easy to construct. With the even distribution of  the  load  in  a  standard  arch  building,  the  size  of  the continuous strip footing is smaller and more economical than the foundations for conventional buildings. The  concrete  forms  and  accessories  provided  are sufficient to form the foundations for a building 100 feet long  by  50  feet  wide.  When  a  different  configuration  is required,  forms  are  available  upon  request  from  the manufacturer. The   actual   footing   construction   is   based,   as   all project are, on the building plans and specifications. The location  of  the  forms,  placement  of  steel,  and  the  psi (pounds  per  square  inch)  of  the  concrete  are  critical. Since  the  building  is  welded  to  the  angle  in  the  footer prior to the concrete placement, all aspects of the footer construction must be  thoroughly  checked  for  alignment and square. Once concrete is placed, there is no way to correct mistakes. As  mentioned  above,  forms  are  provided  for  the foundation. Using table 9-1 as a guide, figure 9-32 gives you a simple foundation layout by parts designation. As noted in figure 9-32, the cross pipes are not provided in the kit. They are provided by the contractor. With   the   foundation   forms   in   place,   and   the building panels welded to the attaching angle (fig. 9-33) at  12  inches  OC,  you  are  ready  to  place  the  concrete. When  placing  the  concrete,  remember  it  is  extremely important that it be well-vibrated. This  helps  eliminate voids under all embedded items. As the concrete begins to set, slope the top exterior portion of the concrete cap about  5  inches  (fig.  9-34)  to  allow  water  to  drain  away from  the  building.  The  elevation  and  type  of  interior floor are not relevant as long as the finish of the interior floor is not higher than the top of the concrete cap. BUILDING ERECTION With  the  placement  of  the  machinery  and  forming of    the    building    panels    in    progress,    your    next considerations are the placement and  the  weight-lifting capabilities of the crane. Check the crane’s weight-lifting chart for its maximum weight capacity. This dictates the number  of  panels  you  can  safely  lift  at  the  operating distance. As with all crane operations, attempting to lift more than the rated capacity can cause the crane to turn over. Table 9-1.-Concrete Forms Included in Kit DESCRIPTION PART (Each set of forms is sufficient to erect a building 100 feet     NUMBER long by 50 feet wide) Side form panels, 1 10, 12-gauge steel   F-1 Transition panels, 1 12, 12-gauge steel   F-2 Transition panels, 1 28, 12-gauge steel   F-3 End- wall caps, 1 15, 12-gauge steel   F-4 Side- wall caps, 1 19, 12-gauge steel   F-5 Filler form, 1 12, 12-gauge steel   F-6 Sidewall inside stop, 1 12, 12-gauge steel   F-7 End wall inside stop, 1 12, 12-gauge steel   F-8 Stakes, 1/4 diameter, bar steel   F-9 All-thread rod, 1/2-13 18   F-10 Hex nuts, 1/2-13   F-11 Hex bolts, 1/8-16 1-1/2   F-12 Hex nuts, 3/8-16   F-13 Flat washers, 1/8 SAE   F-14 Corner angles, 2 2 12, steel angle   F-15 9-20