- 10 - of the columns and the header beams are connected to the racks by open web bar joists that stabilize the tops of the columns against wind loads and maintain rigidity. These columns are supported at the bottom by foundation walls, which vary in height to conform to the outside grade. The foundation walls of the Reserve Facility are poured-in-place, reinforced concrete, consisting of continuous footings and retaining walls. The wall panels are assembled from one end of the Reserve Facility to the other. Each panel is screwed to the girts with a reinforcing clip. All the joints are caulked between the panels and on the top and bottom girts. The ends and exposed edges of panels are finished with a preformed metal trim. Within the wall system are metal ventilation louvers, a 12-foot-wide by 14-foot-high rollup door, and several hollow metal swing doors and frames. The Reserve Facility is covered by a roof that is directly connected to and supported by the racks. The Reserve Facility's roof consists of a 1.5-inch-deep corrugated metal deck supporting rigid insulation and a waterproof membrane roof. The roof membrane and the rigid insulation are held in place with stone ballast. Special flashing and trim pieces are used to terminate the membrane at mechanical equipment penetrations and around the perimeter of the roof. The metal deck is supported by beams that run across the top of the supporting rack posts. At the north and south ends of the Reserve Facility, the roof, which includes the deck, insulation, and membrane, is supported by open web barPage: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Next
Last modified: May 25, 2011