Statement_of_Work_Specification_Aluminum_Grating.pdf

Statement of Work Specification: IRA - WT Lab Aluminum Grating

T6061 Integrated Aluminum Grating / Platform Cover with Non-Slip Epoxy Surface Coating

Introduction

This Statement of Work (SOW) details the scope and deliverables for the design, supply and delivery of a structural T6061 aluminum cover grating system with a solid aluminum cover and coated with non-slip epoxy.

1. Project Overview

The project encompasses site measurements, fabrication drawings, fabrication, and delivery of grating panels with platforms constructed from structural T6061 aluminum. Each grating and platform will be topped with a welded solid aluminum cover and finished with a non-slip epoxy surface coating.

2. Scope of Work

• Measure and determine sizing for grating panels to allow for a ¼” - ½” space on each since of the panel and the trench opening while being flush with the floor surface. This is required for variations in the trench opening width.

• Provide a quotation for estimated grating sizing covering an area of 41” x 92’ (41 inches x 92 linear feet) with a grating depth of 3” (3 inches). The grating is supported in one direction and has an unsupported span of 41” (41 inches).

Salient characteristics for grating system include:

• Fabrication and supply of grating panels with solid sheet metal covers constructed from structural T6061 T6 aluminum alloy

• Propose a design to span the 41” trench opening with grating panels to be 24” (24 inches) in length

• Design load 150 pounds live load per square foot with proposed structure approved and stamped by a professional engineer licensed in the State of Colorado

• All welding services shall be performed according to AWS standards D1.2 for structural aluminum

• Weight of each grating panel not to exceed 60 pounds

• Provide finger holes on each side of grating panel for lifting

• Integration of a solid aluminum cover plate welded atop each grating section

• Application of non-slip epoxy coating on the surface of each aluminum cover (plate portion only) o Dynamic coefficient of friction (DCOF) of 0.42 or a static coefficient of friction

(SCOF) of 0.6 required for surface o Epoxy coating shall be applied according to all manufacturer recommendations including primer, epoxy, flakes and top coating o Epoxy primer applied to the grating surface o Epoxy color shall be Armor Garage “Granite (C1410)” or equivalent, with black, blue and white traction chips and light flake coverage o Military Grade Topcoat, Armor Garage or equivalent applied to epoxy coating:

Chemically hardened for abrasion protection rating in one coating

• Delivery of all grating covers to site

Exclusions:

• Removal of existing steel grating

• Structural modifications to support grating

• Repairs to underlying surfaces

3. Acceptance Criteria

• Accepted fabrication drawings and notice to proceed to fabricate

• Grating panels and platforms are verified as structural T6061 aluminum with solid plate covers, epoxy coating and finger-holds o Non-slip epoxy surface coating passes slip-resistance tests on all grating and platform surfaces

• Grating panel delivery approved by Government