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 Riveted Grating |
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 iveted gratings, which provided the foundation for the
manufacture of commercial grating products, continue to serve many of industry's most
demanding applications. Manufactured by riveting crimped flatbar cross members to
rectangular bearing bars in a recticuline pattern, these products offer superior
resistance to impact, fatigue and repetitive loads. The truss style reticulated
cross bars offer excellent strength and durability when subjected to the concentrated
stresses of rolling loads imposed by cart and dolley traffic. |
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TYPE R-18-7 |
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| MATERIALS AND SPECIFICATIONS |
| Riveted gratings are produced in carbon steel, 6000 series aluminum and 300 series stainless steels. To specify GPI Riveted Grating, first specify the type of grating from the table. In the instance of Standard Riveted Grating, the "R" indicates the method of assembly shall be riveted construction, the "18" indicates that the bearing bars shall be spaced 18/16's (1-1/8) inches apart, and the "7" indicates that the rivets shall be spaced at 7" on center. Following selection of the type of grating, consult the load tables to select the appropriate bearing bar size for the loads and spans to be served. To complete the specification, indicate which of the three materials is desired for the application, carbon steel, aluminum or stainless steel. |
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| SERRATED
SURFACE When the walking surface of the bar gratings are subject to the accumulation of moisture or other slippery substances, the optional serrated surface should be considered. Unlike rectangular mesh gratings where the bearing bars are typically constructed with the serrated surface, the standard method of manufacture for riveted gratings is to serrate the crimped cross member. When the grating is assembled, these crimp bars are allowed to project slightly above the top surface of the bearing bars to provide a superior unidirectional skid resistant surface. Environments particularly prone to unsafe walking conditions can be further specified as 100% serrated where both bearing bars and the crimp bars are provided with serrations. |
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