image 4: Lighting Gridiron and lifting cable structure.
Division 13 - Special
Construction
Section 1300
image 4: Lighting Gridiron and lifting cable structure.
Image 4 shows the initial structural bracing and connection of the fabricated steel tube lighting gridiron. The gridiron will support large lighting fixtures which will be hung in the atriums.
image 5.
Image 5 shows the completed gypsum board ceiling and skylights with the gridiron below. The lighting fixture hoisting mechanism was installed as an internal cabling which can lower the lighting fixtures for re-lamping purposes as required. The hoist motors are accessible at the edge of the gridiron for servicing.
Division 13
Page 3
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