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Furnish, Deliver & Install Tilted Projection Dome


Location
North Carolina
Publication Date
02/21/2020 07:43 AM EST
Closing Date
03/12/2020 02:00 PM EDT
Issuing Organization
State of North Carolina - Department of Administration
Solicitation Number
Description

Specifications include, but are not limited to: • The hemispheric shell consists, in part, of an aluminum structural rib network system of thirty-two (32) evenly spaced ribs, with a depth of 7" and sufficient number of cross-members to maintain its correct shape. The inside diameter of the dome screen shall be as specified elsewhere, departing not more than plus or minus 12.7mm from the nominal radius • The ribs shall be accurately formed and reinforced in accordance with the manufacturer's drawings. The ribs shall be fabricated from aluminum alloy 6061-T6 and 6063-T5, or other suitable material acceptable to the owner. • A girt system shall be incorporated to maintain proper rib spacing, and complete diagonal or X- bracing shall be provided to maintain proper rib alignment of the dome screen. Sizing and spacing shall be as indicated on manufacturer's drawings as approved by the owner. • The structural gage of the dome shall be sufficiently stiff so that deflection and settlement of the structure will not lead to deformation of the screen panels, based on the stiffness of the support system provided by the owner • A circular compression ring shall be provided and located at the zenith or apex of the dome, to accommodate the terminal points for the main ribs and the perforated top circle. The compression ring shall be fabricated from aluminum alloy 6061-T6, or other suitable material acceptable to the owner.

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