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(a) Fabrication. All timber shall be accurately cut and framed to a close fit in such a manner that the joints will have even bearing over the contact surfaces. Mortises shall be true to size for their full depth and tenons shall fit snugly. No shimming in joints, or open joints, shall be permitted.
(b) Erection.
(1) ASSEMBLY. Joints shall have a tight fit. Fasteners shall be installed in a manner that will not damage the wood. End compression joints shall be brought to full bearing. All framework shall be carried up true and plumb.
(2) TEMPORARY CONNECTIONS. As erection progresses, the work shall be bolted, or nailed as necessary, to resist all dead load, wind, and erection stresses.
(3) ALIGNMENT. The structure shall be properly aligned before final tightening of the connections.
Article 8: Aluminum
Aluminum for structural elements shall at all times in the fabricator's plant, be marked, segregated, or otherwise handled so that the separate alloys and tempers are positively identified, and after completion of fabrication shall be marked to identify the alloy and temper. Such markings shall be affixed to completed members and assemblies or to boxed or bundled shipments of multiple units prior to shipment from the fabricator's plant.
(a) Reference. The provisions of tables 10-1 and 10-2 shall apply.
(b) Welding operations.
(1) Welding work shall be performed only by persons who have obtained a license from the commissioner.
(2) Where manual welding work is not performed in the city of New York, welds shall be made by welders qualified under the applicable provisions of reference standard RS 10-25.
(3) Tack welds that are not later incorporated into finished welds carrying calculated stress shall not be considered as structural welds.
(4) The inspection of welding operations stipulated in table 10-2 shall include a check to ascertain that the welders employed on the work have the required license or are qualified in accordance with paragraph two of this subdivision.
(a) Bracing. All framework shall be carried up true and plumb. Temporary bracing shall be provided to support all loads imposed upon the framework during construction that are in excess of those for which the framework was designed.
(b) Temporary connections. As erection progresses, the work shall be securely bolted, or welded, to resist all dead loads, wind, and erection stresses.
(c) Alignment. The structure shall be properly aligned before riveting, permanent bolting, or welding is performed.
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