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ANCHORING <br /> 9.13.1.4. CSI deadmen are engineered and sized to 9.14.1.3. For unstable excavations,it is the <br /> the tank ordered. responsibility of the tank owner or tank <br /> 9.13.1.5. Placement of CSI deadmen is the same as owner's representative to design the <br /> standard deadmen. bottom pad thickness and reinforcement. <br /> 9.13.1.6. Lay the deadmen in the excavation Regardless of design,the anchor pad <br /> parallel to the tank and at the outside should extend to the excavation walls. <br /> edge of the tank shadow(see Figure 9-5). 9.14.1.4. Poor soil conditions,local codes,seismic <br /> activity,etc.may require increased <br /> Figure 9-5 reinforcement and anchor pad thickness. <br /> Contact a soils consultant for specifications. <br /> FRPTank 9.14.2. Embedded anchor points should be designed <br /> for the working loads in Table 9-1. <br /> Strap 9.14.3. When embedding anchor points at the time <br /> the pad is fabricated,the following design will <br /> AnchorHook meet the minimum required anchor points <br /> Pant Turnbuckle <br /> (see Fig ure 9-6). <br /> JT, <br /> rank snadow H Figure 9-6 <br /> ... ." " " 14-va, Smooth <br /> lasts a.d en Deadman or Anchor Pad Radius <br /> Deadman Deadman Min. <br /> (,ea <br /> 9" 6" (12k12) #6 Rebar <br /> Tank Diameter *Dimension H Span 4"Min. <br /> 4' See supplemental documents in section 21 �" <br /> e 16"Max. <br /> 6' 27" <br /> 8' 36" n 4 <br /> 10' 42" •� <br /> 12' 50" Tank Minimum Rebar* <br /> Diameter Rebar Loop Size Span <br /> * This dimension is the distance from the hook point on the anchor (l strap/anchor point) <br /> strap tothe bottom of the deadman. 4' #6 71h" <br /> 6' #8 10+h" <br /> 9.13.1.7. CSI deadmen are supplied with a/4"cliameter, 8' #8 1D,/s" <br /> galvanized,adjustable anchor points. <br /> 9.13.1.8. Move anchor points to match the 10' #10** 131/2" <br /> hold-down strap locations on the tank 12' #10** 131/2" <br /> ► 4 ±1"with CSI split straps.This must be * Note: Wider or narrower span will reduce the strength of the <br /> done before placing deadmen in the hole. anchor points below the required value. <br /> 9.13.1.9. Place multiple deadmen,in contact, *` 3/4"turnbuckles require a wire rope loop or shackle between <br /> p turnbuckle and rebar anchor point because#10 rebar will not <br /> end to end. fit into 3/4"eye turnbuckle. <br /> 9.13.1.10. Use one anchor point per strap end. <br /> 9.14. Concrete Anchor Pad 9.15. Split Strap Anchoring stem <br /> 9.14.1. The weight of the overburden acting on the 9.15.1. The CSI split strap anchorr system is designed <br /> for use in installations when personnel may not <br /> concrete anchor pad and the tank provides the <br /> enter the hole.This system includes a two part <br /> anchoring force(not the weight of the concrete <br /> anchor pad). strap and take-up assembly at the tank top that <br /> may be used in conjunction with <br /> 9.14.1.1. As a minimum,to counteract buoyancy, CSI deadmen. <br /> the anchor pad for stable excavations 9.15.2. When using the split strap anchoring system, <br /> must be at least 8"thick,with#6 rebar the placement of components is critical <br /> on 12"centers each way,constructed per <br /> current ACI code. (see Figure 9-7).For detailed instructions on <br /> using the split strap anchor system refer to <br /> 9.14.1.2. For stable conditions the pad must Supplemental Documents(Section 21). <br /> extend a minimum of 18"beyond the tank <br /> shadow.The pad must also be at least the <br /> same length as the tank. <br /> 17 <br />