YWW 60 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) 21 BE9-2746 / BE9-2747 V E R T I C A L 20 19 18 17 16 15 A 14 B 13 12 C 11 10 Ixx=10.878 in (452.77 cm4) 4 D 2 3 4 5 6 H E I G H T (FT) 21 7 A = 15 PSF (720 Pa) B = 20 PSF (960 Pa) C = 30 PSF (1440 Pa) D = 45 PSF (2160 Pa) 20 19 18 17 16 14 13 C Ixx=14.065 in4 (585.43 cm4) 12 D 11 10 2 3 4 5 6 7 V E R T I C A L S PA C I N G ( F T ) Effective Date: July 14, 2020 | 03-1009-02 14 13 12 A 11 B 10 C D 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 B 15 8 BE9-2746 / BE9-2747 w/ 1/4 " x 3-3/4 " Steel Bar 15 16 (FT) 9 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 4 Ixx=4.673 in G (194.50 cm4) H T E9-2750 / E9-2751 17 H E Ixx=8.559 in4 I (356.25 cm4) G H T 20 E9-2750 / E9-2751 w/ 3/8 " x 3-1/2 " Steel Bar 19 18 17 16 15 14 A 13 B 12 C 11 ( F T ) 10 9 D 2 3 4 5 6 7 V E R T I C A L S PA C I N G ( F T ) Page-27