Complete Compiled Specification.pdf - Peck Ormsby Construction

G. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners
wherever possible. Use exposed fasteners of type indicated, or if not indicated, phillips
flat-head (countersunk) screws or bolts.
H. Provide for anchorage of type indicated, coordinated with supporting structure. Fabricate and
space anchoring devices to provide adequate support for intended use.
I. Cut, reinforce, drill, and tap miscellaneous metal work as indicated to receive finish hardware
and similar items.
J. Galvanizing: Provide a zinc coating for those items indicated or specified to be galvanized, as
follows:
1. ASTM A 153 for galvanizing iron and steel hardware.
2. ASTM A 123 for galvanizing rolled, pressed, and forged steel shapes, plates, bars,
and strip 1/8" thick and heavier.
3. ASTM A 386 for galvanizing assembled steel products.
K. Fabricate joints which will be exposed to weather in a manner to exclude water, or provide
weep holes where water may accumulate.
L. After fabrication, shop paint steel, except surfaces to be encased in concrete or to be welded,
and contact surfaces to be bolted. Thoroughly clean all steel to be encased in concrete.
M. Surface Preparation: Comply with recommendations of SSPC for the applicable
environmental exposure conditions.
2.04 STEEL RAILINGS AND HANDRAILS
A. Fabricate steel railings and handrails to design, dimension, and details indicated. Provide
railings and handrails members formed of pipe of sizes and wall thickness indicated, or if not
shown, as required to support design load.
B. Mockups: Provide mockups of railings as indicated on the drawings. Upon approval, mockups
may be incorporated in the project provided structural integrity of the railings is not
compromised.
C. Interconnect railing and handrail members by butt-welding or welding with internal
connectors, at fabricator's option, except as otherwise indicated.
1. At tee and cross intersections, provide coped joints.
D. Provide wall returns at ends of wall mounted handrails, except where otherwise indicated.
E. Close exposed ends of pipe by welding 3/16" thick steel plate in place or by use of
prefabricated fittings.
F. For railing posts set in concrete, provide sleeves of galvanized steel pipe, not less than 6"
long and with an inside diameter not less than 1/2" greater than the outside diameter of pipe.
G. Brackets, Flanges, Fittings, and Anchors: Provide wall brackets, end closures, flanges,
miscellaneous fittings, and anchors for interconnections of pipe and attachment of railings
and handrails to other work. Furnish inserts and other anchorage devices for connecting
railings and handrails to concrete or masonry work.
SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION MARCH 2, 2009
METAL FABRICATIONS 05500 - 4