Specifications
Transportation :20KM to Qingdao Port. Professional steel structuresteel, grating production line, independent plant,
Heavy Duty Grating
Welded Heavy Duty products are designed to meet the need for gratings subject to heavy rolling and static loads such as highways, plant floors, loading docks, inlet covers and airports. Since these conditions can range from light-duty forklifts to semi-trucks and trailers carrying maximum allowable highway loads, Heavy Duty gratings are manufactured in a wide variety of bar sizes and spacings. The most popular products along with tables showing the maximum safe spans for some of the most common vehicle loads, are located below.
E.G Heavy Duty products are designed in accordance with current AASHTO specifications for H-10 through H-20 loads. Automobile and forklift loads are similarly evaluated with loads calculated and distributed in accordance with the criteria shown in the Maximum Traffic Conditions chart below. If your particular load conditions are not adequately addressed in the load criteria presented, please contact our engineering staff and we will be pleased to assist in the selection of a heavy duty grating to satisfy your specific needs.
BEARING BAR SELECTION
Once the bar spacing is selected, the bearing bar size must be specified based upon the anticipated load and the clear (unsupported) span to be served. The load tables in the navigation bar to the left provide the maximum safe clear simple span for our most popular products based on the maximum traffic conditions defined below. These tables incorporate strict limitations where design deflection shall not exceed the lesser of L/400 of the safe span indicated or 1/8 of one inch (.125).
BANDING
Because Heavy Duty gratings are commonly subjected to shock and impact loads it is highly recommended that all open ends be banded. The welded band bar helps distribute impact loads and minimizes panel distortion when subjected to repetitious traffic patterns.
SERRATED SURFACE
Optional serrated bearing bars can be specified to enhance skid resistance. To maximize skid resistance, specify 100% Serrated grating. This Heavy Duty grating is manufact ured with serrated bearing bars and serrated rectangular cross bars.