INSTALL_1997 - Laserfiche WebLink

Home Browse Search

0 TANK DIAMETER (FT.) DEADMAN DIMENSIONS (W x D) (IN.) SLAB WIDTH (FT.) 4 6"x6" 6' 6 12" x 12" 9.5' 8 12"02" 12" 11' 10 18" x 12" 13.5' 12 36" x 8" 15' TABLE 7-1 FIGURE 7-1 FIGURE 7-1A Lay the deadmen in the excavation parallel to the tank'and outside of the tank "shadow." (See Figure 7-1 and 7.1 A). In multiple tank installations, each tank will require two deadmen. The minimum spacing between tanks must be equal to twice the width of a single deadman. One deadman may be used between two tanks if it is doubled in width. Provide a separate anchor point for each holddown strap. ANCHOR SLAB An anchor slab is a reinforced concrete base. The total length of the slab must be at least the same as the tank. The minimum slab thickness is 8 inches. The width of the slab depends on the tank diameter. Refer to Table 7-1 for specific dimensions. Refer to Table 7.2 and Figure 7-2 for anchor point dimensions. Provide a separate anchor point for each holddown strap. When using a concrete base slab, allow sufficient depth in the excavation for 12 inches of bedding material below the tank. (Figure 7-3). 0 TABLE 7.2 FIGURE 7-2 FIGURE 7-3 HOLDDOWN STRAPS Xerxes FRP straps must be used when a tank is to be anchored The location of holddown straps for each tank is marked on the tank by the arrow (><) symbol. Complete data for holddown straps are given in Table 7-2 and Figure 7.2. Q CAUTION: Place the straps only in the locations designated by the arrow symbol (><). To evenly distribute buoyancy loads, tighten all holddown straps uniformly until they are snug over the ribs but cause no deflection of the tank. Make an intermediate measurement of the tank diameter AFTER the straps have been installed and tightened. ANCHORING DIMENSIONS TANK DIAMETER "A" "B" "C" . E, "D" MIN. I MAX. 4' 24" 18" 12" 27" 30" 8'- 41/4" 6' 35" 23" 13" 42' 48" 12'-1" 8' 43" 31" 15" 52" 58" 15'-1" 10' 57" 45" 15" 69" 75" 18'- 83/4" 12' 1 58" 50" 1 23" 87" 93" 22'- 63/4" TABLE 7.2 FIGURE 7-2 FIGURE 7-3 HOLDDOWN STRAPS Xerxes FRP straps must be used when a tank is to be anchored The location of holddown straps for each tank is marked on the tank by the arrow (><) symbol. Complete data for holddown straps are given in Table 7-2 and Figure 7.2. Q CAUTION: Place the straps only in the locations designated by the arrow symbol (><). To evenly distribute buoyancy loads, tighten all holddown straps uniformly until they are snug over the ribs but cause no deflection of the tank. Make an intermediate measurement of the tank diameter AFTER the straps have been installed and tightened.