fabrication shall be stress-relieved annealed prior to receiving final
machining unless otherwise permitted.
2.2.2.3
Welding of Aluminum
Welding of aluminum shall conform to AA ADM1 or AWS D1.2, Sections 1
through 7, 9 and 10. The welding process and welding operators shall be
prequalified as required by AWS D1.2, Section 5 or AA ADM1, Subsection
7.2.4 in accordance with the methods described in ASME BPVC SEC IX, Section
IX. A certified report giving the results of the qualifying tests shall be
furnished for approval. A complete schedule of the welding process for
each aluminum fabrication to be welded shall be furnished for approval.
2.2.2.4
Welding of Steel Studs
The procedures for welding steel studs to structural steel, including
mechanical, workmanship, technique, stud application qualification,
production quality control and fabrication and verification inspection
procedures shall conform to the requirements of AWS D1.1/D1.1M, Section 7,
except as otherwise specified.
a. Application Qualification for Steel Studs - As a condition of
approval of the stud application process, the Contractor shall furnish
certified test reports and certification that the studs conform to the
requirements of AWS D1.1/D1.1M, Subsections 7.2 and 7.3, certified
results of the stud manufacturer's stud base qualification test, and
certified results of the stud application qualification test as
required by AWS D1.1/D1.1M, Subsection 7.6, except as otherwise
specified.
b. Production Quality Control - Quality control for production welding
of studs shall conform to the requirements of AWS D1.1/D1.1M,
Subsection 7.7, except as otherwise specified. Studs on which
pre-production testing is to be performed shall be welded in the same
general position as required on production studs (flat, vertical,
overhead or sloping). If the reduction of the length of studs becomes
less than normal as they are welded, welding shall be stopped
immediately and not resumed until the cause has been corrected.
2.2.3
Bolted Connections
2.2.3.1
Bolted Structural Steel Connections
Bolts, nuts and washers shall be of the type specified or indicated. All
nuts shall be equipped with washers except for high strength bolts.
Beveled washers shall be used where bearing faces have a slope of more than
1:20 with respect to a plane normal to the bolt axis. Where the use of
high strength bolts is specified or indicated the materials, workmanship
and installation shall conform to the applicable provisions of ASTM A 325M
ASTM A 325 or ASTM A 490M ASTM A 490.
a. Bolt Holes - Bolt holes shall be accurately located, smooth,
perpendicular to the member and cylindrical.
(1) Holes for regular bolts shall be drilled or subdrilled and
reamed in the shop and shall not be more than 2 mm 1/16 inch
larger than the diameter of the bolt.
(2)
Holes for fitted bolts shall be match-reamed or drilled in
SECTION 05055A
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