D+GA Project No. 9926
Metal Fabrications
16 October 2001
05500 - 3
D.
Provide for anchorage of type indicated; coordinate with supporting structure. Fabricate and space anchoring devices
to secure metal fabrications rigidly in place and to support indicated loads.
E.
Shop Assembly: Pre-assemble items in shop to greatest extent possible to minimize field assembly. Disassemble units
only as necessary for shipping and handling limitations. Use connections that maintain structural value of joined pieces.
Clearly mark units for re-assembly and coordinated installation.
F.
Cut, reinforce, drill, and tap metal fabrications as indicated to receive finish hardware, screws, and similar items.
2.06
STEEL LADDERS:
A.
General: Fabricate ladders for the location shown, with dimensions, spacings, details, and anchorages as indicated.
Comply with requirements of ANSI A14.3.
B.
Siderails: Continuous, steel, 1/2-by-2-1/2-inch flat bars, with eased edges, spaced 18 inches apart.
C.
Bar Rungs: 3/4-inch-square steel bars, spaced 12 inches o.c.
D.
Fit rungs in centerline of side rails, plug weld and grind smooth on outer rail faces.
E.
Support each ladder at top and bottom and at intermediate points spaced not more than 6 feet o.c. with welded or
bolted steel brackets.
2.07
LOOSE STEEL LINTELS:
A.
Fabricate loose structural steel lintels from steel angles and shapes of size indicated for openings and recesses in
masonry walls and partitions at locations indicated.
B.
Size loose lintels for equal bearing of 1 inch per foot of clear span but not less than 8 inches bearing at each side of
openings, unless otherwise indicated.
C.
Galvanize loose steel lintels located in exterior walls.
2.08
MISCELLANEOUS FRAMING AND SUPPORTS:
A.
General: Provide steel framing and supports for applications indicated as required to complete the Work.
B.
Fabricate units to sizes, shapes, and profiles indicated and required to receive other adjacent construction retained by
framing and supports. Fabricate from structural steel shapes, plates, and steel bars of welded construction using
mitered joints for field connection. Cut, drill, and tap units to receive hardware, hangers, and similar items.
C.
Fabricate support for suspended toilet partitions as follows:
1.
Angles: Steel angles of size indicated for rigid support of partitions and for secure anchorage to existing
structural supports; sized as required to limit deflection to L/360 between hangers, but use not less than 3" x
3" x 1/4" angles.
2.09
PIPE BOLLARDS:
A.
Fabricate pipe bollards from Schedule 40 (Standard weight) galvanized steel pipe.
2.10
FINISHES, GENERAL:
A.
Comply with NAAMM "Metal Finishes Manual" for recommendations relative to applying and designing finishes.
B.
Finish metal fabrications after assembly.
