![]() ![]() The 1/4" maximum deflection criteria is considered consistent with pedestrian comfort, but may be exceeded for other loading conditions at the discretion of the specifying authority. Nominate the required thickness of the floorplate. ** Maximum pedestrian load is defined as a 100lb uniform load with ≤ 1/4". Choose a grating by using the pattern choices on page 2 and choose an appropriate Load Bar from the Load/Deflection Table on page 6 & 7. ![]() * Weight per square foot based upon 15-4 grating. The values are not intended to be absolute since the actual load capacity will be affected by the slight variations in mill and manufacturing tolerances. Notes: All loads and deflections are theoretical and based upon the gross sections of the bearing bars, using a fiber stress of 18,000 psi. 2) = Safe Concentrated Load (lbs./foot of grating width) D = Deflection (inches). The 1/4" maximum deflection criteria is considered consistent with pedestrian comfort, but may be exceeded for other loading conditions at the discretion of the specifying authority.įor Serrated grating, the depth of grating required for a specific load is 1/4" greater than in the table. ** Maximum pedestrian load is defined as a 100 lb. * Weight per square foot based upon 19-4 grating. Notes: All loads and deflections are theoretical and based upon the gross sections of the bearing bars, using a fiber stress of 12,000 psi. 2) C= Safe Concentrated Load (lbs./foot of grating width) D = Deflection (inches). For serrated grating, the depth of grating required for a specific load is 1/4" greater than in the table. ![]()
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