Attachments_Amendment 0001.pdf

This document is a detailed technical specification and design blueprint for a 36-foot Octagonal Rainbow Arch Shelter manufactured by Litchfield Industries, Inc., dated 9-15-99. The shelter is a free-standing, open steel structure featuring an octagonal footprint with eight supporting columns positioned at equal 45-degree intervals around a circular base. The structure measures approximately 36 feet in diameter at the centerline of the bolts, with an overall height of 36 feet-3 inches at the flats and 33 feet-7/8 inches at the points.

The structure consists of welded steel components fabricated according to AWS standards using E7081 electrodes, with all members to develop full strength. All fabricated steel and structural tubes must be primed with a rust-inhibitive Alkyd primer per Steel Structures Painting Council (SSPC-SP2) standards. The roof decking is optional, specified as Litch Top 29-gauge metal, 36 inches wide, 3/4 inches deep with Fy=80ksi. Foundation requirements include eight ø30-inch reinforced concrete footings (not included in contract) positioned around the octagonal perimeter at equal spacing. The design incorporates multiple purlin members (P1, P2, P3) and strut connections (S1-S5) with detailed bolted and welded connection specifications. Key structural members include a 5x5 1/2-inch column, #4x48-inch hairpins at each column, and a 5x11 3/8-inch half-arch. All members must be properly braced until complete structural system construction is achieved. Notably, the design notes that if walls are to be added, if the building adjoins another structure, or if other modifications are made, the structure must be reengineered prior to such modifications.