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p;;r.r ■ •It’-'; •’ <br />W ■ <br />•\ <br />mu <br />m <br />mL.;,,. <br />►r- <br />^.^1V <br />,t:- <br />u <br />Iti: <br />Si ‘ <br />t i' <br />r.y <br />,,•* <br />: . <br />r ;^^ <br />f?0r <br />3.1.1.3 <br />3.1.1.4 <br />3.1.1.5 <br />3.1.1.6 <br />3.1.1.7 <br />3.1.1.8 <br />vanized Steel: All steel galvanized members must be hot dipvanized after fabrication, including welding, and after the dril­ <br />ling of bolt * les for the attachment of anchorages, utilities and <br />deck mounted components. Exception is given only to those field welds <br />which must be performed, as determined by the Engineer, at a custom <br />connection and done so in the interest of quality control. r where <br />applicable, enough coats of an acceptable cold galvanizing compound <br />must be applied to the field weld to give a thickness equal to the <br />adjoining original hoi dip galvanizing. . <br />Finished Steel Members: All finished steel members shall be free <br />from twists, bends, distortions, and open joints. All steel construc­ <br />tion shall be free of sharp edges and burrs. Ends of exposed steel <br />r.'smbers shall be or beveled. All coping and mitering shall be <br />doi;e with care. Projecting materials and burrs which would prevent <br />bearin'; of the various members on each other shall be removed. <br />Weldinoi All welding shall conform to the requirements of the <br />American Welding Society. Welds shall be a solid and homogenous part <br />of the metals Joined and shall be free from pits or scale, and shall <br />be of full area and length required to <ievelop the required strength <br />for the intended use. All shop welders, welding operators, welding <br />equipment and welding procedures used in production of steel struc­ <br />tures shall have been qualified in accordance with the qualification <br />procedures of AWS 01.1. Welders shall be certified to perform the <br />welds which are shown on the fabrication drawings. Proof of qualifi­ <br />cations shall be required. <br />Boltina: All bolts, nuts and washers shall be of a size and <br />:t*.rength adequate for the loads imposed and shall be set square with <br />connecting structural members with the nuts drawn up tight. Lock <br />washers or other devices or techniques shall be used to prevent nuts <br />from loosening after being properly tightened. No bolt threads shall <br />be allowed within the structural components in hinged type connec­ <br />tions. Hinge pins or bolts shall be of a positive locking type which <br />will not allow loosening or loss of the pin or bolt from movement of <br />the Joint. High strength bolts shall be used where required in <br />accordance with the American Institute of Steel Construction's specifi­ <br />cations for "Structural Joints using ASTM A325 or A490 Bolts." <br />Counterborino: Lumber shall be counterborH wherever projecting <br />boltheads or nuts may damage boats or provide a hazard to pier users. <br />Counterboring shall be sufficiently deep to permit installation of the <br />bolts and nuts with washers well below the surface of the wood. <br />Fastening of Deck Boards: Deck boards may be fastened either by <br />nailing, screwing or bolting. If nailed, nails shall be driven to set <br />the heads flush with or slightly below the surface of the wood. <br />Number of nails used per connection, type and size shall be <br />- 12 -