YWW 50 TU Window Wall System WIND LOAD CHARTS DEFLECTION CRITERIA: AAMA TIR-A11 - L/175 or L/240 + 1/4 " (6.4mm) - FOR SPANS GREATER THAN 13'-6 " (4.1m) BUT LESS THAN 40'-0 " (12.2m) CODES AND SPECIFICATIONS MAY VARY, NO SINGLE LITE OF GLASS SHALL DEFLECT MORE THAN 3/4 " (19.1mm) ALLOWABLE WIND LOAD STRESS YKK AP tested standard. Contact YKK AP for more information. These charts include unbraced length analysis and are based off at least one horizontal being placed at the midpoint of the span. For other applications, please contact YKK AP engineers at 1-866-955-2732. V E R T I C A L H E I G H T (FT) 19 BE9-2764 / BE9-2765 V E R T I C A L 18 17 16 15 14 Ixx=6.535 in (272.01 cm4) A 4 13 12 B 11 10 C 9 D 8 2 3 4 5 6 H E I G H T 20 A = 15 PSF (720 Pa) B = 20 PSF (960 Pa) C = 30 PSF (1440 Pa) D = 45 PSF (2160 Pa) 19 18 17 16 15 A 13 11 C ( F T ) 10 9 Ixx=7.950 in4 (330.90 cm4) B 12 D 2 3 4 5 6 7 V E R T I C A L S PA C I N G ( F T ) Page-12 12 11 10 A 9 B 8 C 7 D 5 7 BE9-2764 / BE9-2765 w/ 3/8 " x 2-1/2 " Steel Bar 14 H E I G H T 13 (FT) 6 V E R T I C A L S PA C I N G ( F T ) V E R T I C A L Ixx=2.402 in (99.98 cm4) 4 E9-2768 / E9-2769 14 Ixx=4.290 in4 (178.56 cm4) 2 3 4 5 6 7 V E R T I C A L S PA C I N G ( F T ) V E R T I C A L H E I G H T 17 E9-2768 / E9-2769 w/ 1/2 " x 2-1/2 " Steel Bar 16 15 14 13 12 A 11 B 10 C FT) 9 8 D 2 3 4 5 6 7 V E R T I C A L S PA C I N G ( F T ) 03-1009-02 | Effective Date: July 14, 2020