1.Nonilluminated signs along perimeter road
a.Sign panels: honeycomb core panels, aluminum face with porcelain finish and applied metal letters.
b.Support structure: heavy wall steel tube all-welded construction for maximum strength; epoxy enamel finish over hot-dipped galvanized coating for durability.
2.Internally illuminated signs
a.Sign panels: heavy aluminum plate signface with cut through copy backed up with acrylic plastic mechanically attached internally, so it can't blow out of frame.
b.Support structure: same as nonilluminated signs.
3.Multilane road signs
a.Sign panels: honeycomb core panels with aluminum face, porcelain finish, applied metal letters. This con-struction is light, strong, durable, and well-tested by existing freeway applications.
b.Support structure: special heavy wall round pipe, with elbow connections flush welded and ground smooth.
c.Illumination: fluorescent in trough supported by the panel.
Note: The typical freeway truss construction was just as expensive and visually more complex than this solution.
4.Major identity sign: Tower
a.Sign panels: typical honeycomb aluminum panels with cutout and applied metal letter. Porcelain steel panels rejected on basis of warpage problem in processing.
b.Support structure: prefabricated inner steel engineered to resist high wind load factor.
1.Narrow corridors preclude use of projecting wall-mounted signs.
2.Certain directional signs should display message on both front and back.
3.Interior signs should have changeable message elements to allow for future relocating of departments, clinics, lab-oratories, and other functional areas.
1.Study various removable attachments of message elements to a sign panel:
a.Magnetic fasteners; plastic interlock; Velcro.
b.Alternate: methods of stacking message element panels one on top of another and held at the sides by a metal frame.
2.Consider use of signs supported from the ceiling which will accommodate messages on front and back of sign panels.
Investigate ways to connect sign assembly to the ceiling. Consider vulnerability of sign: can it be struck by maintenance crews? Connection should be resilient or movable if sign is struck.
3.Study materials for message surface which will allow wording to be revised:
a.Painted wood (can be repainted); formica (old copy
can be removed and new copy applied); dark anodized building letters installed on wall
b.Alternate: silk screening, vinyl letters, surface printing.
Solution. A system of message elements was designed of formica over plywood with silk-screened copy. The elements are held in place by concealed snap fasteners and can be removed from the backup panel. The sign assembly is attached to the ceiling with a hook connection, which allows the entire sign to swing if struck by maintenance crews.
Building Letters installed on wall