网页52 VULCRAFT GRATING www.vulcraft.com VULCRAFT GRATING www.vulcraft.com 53 LOAD TABLES | HEAVY DUTY, IMPERIAL LOAD TABLES - HD IMPERIAL LOAD TABLES - HD Section Bearing Approx. Ped. Properties Bar Size Weight Span Load / Sx (in 3)/ft (inches) (lbs/ft2) (inches) Deflection I x (in 4)/ft U 5,614 2,495 1,404 898 624 458 351 277 225 186 156 133 115 ...