1031.2( f) 1031. 3(a)
1.a Mechanically Laminated Panels. Perform all possible fabrication of mechanically laminated members before preservative treatment. Treat mechanically laminated girders and deck panels for highway construction according to AWPA C14.
1.b Glued laminated Members. Fabricate structural glued laminated softwood timber according to ANSI/AITC 190.1, “Structural Glued Laminated Timber,” and AITC -117, “Manufacturing, Standard Specifications for Structural Glued Laminated Timber of Softwood Species.” Treat glued laminated timbers for highway construction according to AWPA C14.
on the structural drawings, and with tolerances according to the ANSI/AITC A190.1 (AITC 113, “Standard for Dimensions of Structural Glued Laminated Timber”) or tolerances a s follows:
• Width. ±1/8 inch of the indicated width.
• Depth. ±1/8 inch per foot of indicated depth.
• Length . ±1/8 inch up to 20 -foot length with a ±1/8 -inch allowance for every 20 feet of additional length.
• Squareness. Provide a cross section for all glued laminated structural members which is square within ±1/8 inch per foot of depth of member unless a special shape is indicated.
• Beam Camber. ±1/4 inch for lengths up to 20 feet. Add ±1/8 -inch allowance for each additional 20 foot length.
Provide industrial appearance grade glued laminated timbers according to AITC 110, “Standard Appearance Grades for Structural Glued Laminated Timber.” Accept only glued laminated timbers in standard dressed widths according to AITC 113.
• Asphalt Wearing Course. Section 413.2
preservatives with hardwood lumber and timber.
1031.3CONSTRUCTION —
exposure to the elements if stored for prolonged periods of time. Store material so that it can be readily inspected. 1031.3 (a) 1031.3(c) rope slings. Do not use cant hooks, peaveys, or other sharp instruments in handling treated timber. Provide corner protection for banded material. The Department will reject t reated