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4" LAT - SEISMIC BRACE CALCULATIONS <br /> Seismic Project 4" Lateral Brace Name 4" Lat <br /> Standard NFPA 13-2016 Drawing Reference Lat <br /> Brace Type Lateral Approval Agency UL Listed <br /> STRUCTURE INFORMATION SEISMIC BRACE ATTACHMENTS <br /> Structure Cracked Concrete Model Size Load Rating <br /> Substrate Normal Weight Cracked Concrete- Swivel Att. AF075 1 NPS x 1/2" 1,425 lbf. <br /> 4000 psi Pipe Att. AF035 4 NPS x 1 NPS 1,955 lbf. <br /> Load Orientation N/A <br /> See Appendix A for alternate seismic brace attachments. <br /> BRACE INFORMATION All seismic brace attachments manufactured by ASC Engineered Solutions. <br /> Brace Member 1 NPS Sch 40 <br /> Brace Length Max 7 ft 0 in <br /> Brace Angle 45°- 59° <br /> Wedge Anchor —Structure: <br /> Least Radius of Gyration 0.421 in. ;, -O Concrete(By othersl <br /> 1/r Ratio Max 200 Fig.AF075 <br /> Max Horizontal Load 1,310 lbf. <br /> FASTENER INFORMATION Schedule40 Service <br /> Brace Pipe Pipe <br /> Fastener Name Wedge Anchor per NFPA <br /> 13-2016 Fig.AF035 <br /> Fastener Orientation B <br /> Fastener Diameter 1/2 in. Net Vertical Reaction Forces do not need to be addressed per NFPA 13-2016. <br /> Nominal Embedment 3 5/8 in. <br /> Max Horizontal Load 607 lbf. <br /> SPNKLERSYSTEMLiAD CAL .. . TI (Fpw = Cp p) <br /> Cp = 0.618 <br /> Qty Line Description Pipe Diameter/Type Length Weight per ft Weight <br /> 1 Main Braced Pipe 4 NPS Steel Sch 10 20.00 ft. 11.78 lb/ft. 235.60 lb. <br /> 2 Branch 1 Segment A 1 1/2 NPS Steel Sch 10 60.00 ft. 3.04 lb/ft. 182.40 lb. <br /> Weakest Main Size Spacing Max Fpw Total System Weight 600.40 lb. <br /> 4 NPS Steel Sch 10 20 ft. 1,634 Ibf. System Design Weight (Wp) 691 lb. <br /> Horizontal Seismic Load (Fpw) 428 lbf. <br /> 2 <br />