SECTION 033000 - CAST-IN-PLACE CONCRETE

Sludge Treatment Project Engineered Container Retrieval and Transfer System January 2012
SECTION 055300 - METAL GRATINGS
PART 1 - GENERAL
1.1 SUMMARY
A. Section Includes:
1. Metal bar gratings.
1.2 ACTION SUBMITTALS
A. Product Data: For the following:
1. Formed-metal plank gratings.
2. Clips and anchorage devices for gratings.
B. Shop Drawings: Include plans, sections, details, and attachments to other work.
1.3 QUALITY ASSURANCE
A. Metal Bar Grating Standards: Comply with NAAMM MBG 531, “Metal Bar Grating Manual”
and NAAMM MBG 532, “Heavy-Duty Metal Bar Grating Manual”.
B. For wind and seismic resistance, grating clips in the Loading Bay is Safety Significant, SSC’s
(Structure Systems or Components) as shown on the drawings.
1. All safety SSCs will be procured, inspected, accepted, and verified in accordance with the
requirements of PRC-MP-QA-599, Quality Assurance Program.
2. The critical characteristics are:
PART 2 - PRODUCTS
2.1 FERROUS METALS
a. Minimum downward holding force of 70 pounds per clip.
A. Recycled Content of Steel Products: Provide products with average recycled content of steel
products so postconsumer recycled content plus one-half of preconsumer recycled content is
not less than 25 percent. Note: no documentation is required since the USGBC allows a default
value of 25 percent to be used for steel without documentation.
B. Steel Plates, Shapes, and Bars: ASTM A 36/A 36M.
Contract 44577 KW Annex - Rev. E 44577-CSI-SPEC-001 055300 - 1