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STRUCTURAL STEEL <br />1. All detailing, fabrication and erection shall conform to American Institute of Steel <br />Construction "Specifications for Structural Steel Buildings" (AISC 360) and the "Code <br />of Standard Practice for Steel Buildings and Bridges" (AISC 303), latest editions. All <br />bolting shall conform to the Research Council on Structural Connections "Specification <br />for Structural Joints Using ASTM A325 or A490 Bolts" (RCSC A.1), latest edition. <br />2. All steel shall conform to the following ASTM standards, unless noted otherwise: <br />All steel not otherwise shown .......... ASTM A 36 <br />W and WT shapes ... ...........................ASTM A 992 <br />Steel Tubing ............ ...........................ASTM A 500, Grade B Steel <br />Pipe ......................... ...........................ASTM A 53 (Type E or S), Grade B <br />3. Structural steel bolts shall conform to ASTM A 325, heavy hex. Nuts shall conform <br />to ASTM A 563, heavy hex. Washers shall conform to ASTM F 436. Bolted <br />assemblies shall be 3/4 "0 unless noted otherwise. <br />4. Bolted connections shall be snug tight, unless noted otherwise. <br />5. All welding shall conform to the American Welding Society "Structural Welding Code" <br />(AWS D1.1), latest edition. Welding shall be performed with E70xx electrodes unless <br />noted otherwise. <br />6. All steel shall be shop primed and painted, with the exception of areas to be field welded. <br />See section STEEL COATINGS for additional information & requirements. <br />7. Areas within 2 inches of field welds shall not be painted until after welding. Field <br />welds, bolt heads, nuts, all other surfaces not shop painted, and all surfaces that <br />become abraded during shipping and erection shall be field painted immediately after <br />erection. Shop connections shall be welded unless noted otherwise. <br />8. Shop connections shall be welded unless noted otherwise. <br />9. All welding shall be done by certified welding operators, who each have in their <br />possession current evidence of passing the "American Welding Society Standard <br />Qualifications Tests" as detailed in AWS D1.1. Welding certificates shall be submitted <br />to the Engineer for each welder before field welding commences. <br />10.Weld sizes not otherwise shown shall be minimum continuous 5/16 inch fillet welds. <br />11. Torch -based fabrication (including, but not limited to, holes, coping and trimming of <br />steel members) shall be prohibited unless specifically coordinated with Engineer. <br />12.The Engineer shall be notified whenever base metal discontinuities, fit -up and <br />alignment problems, field welding problems, or member length or hole alignment issues <br />are identified during erection of the structure. Written clarification must be obtained <br />before proceeding with field modifications of the structural steel. <br />13.Non- shrink grout shall conform to ASTM C 1107, with a minimum ultimate <br />compressive strength of 5,000 psi at the age of 28 days. <br />14.Substituted beam connections shall be subject to review by Engineer. Shear <br />connections shall conform to Part 10 of the AISC "Steel Construction Manual," latest <br />edition. Moment connections shall conform to Part 12. All substituted connections <br />must develop the full capacity of the connections specified on the structural drawings. <br />INSPECTION AND SPECIAL INSPECTION <br />1. All Inspection shall conform to the requirements of Section 109 of the International <br />Building Code. All Special Inspection shall conform to the requirements of Section <br />1704 of the International Building Code. <br />2. The owner is required to employ inspectors and special inspectors, who shall submit <br />copies of all reports to the Owner and Engineer immediately upon receipt. <br />Upon completion of their scope of work, the inspectors and special inspectors <br />shall submit a final signed report stating whether the work was, to <br />the best of their knowledge, in conformance with the approved set of Contract <br />Documents and the applicable workmanship provisions of the Building Code. <br />3. Inspectors and special inspectors shall be qualified person(s) who demonstrate <br />competence in their respective type of construction to the satisfaction of the Building <br />Official. <br />4. The General Contractor shall coordinate with inspectors and special inspectors to <br />incorporate the inspection schedule into the overall project construction schedule. <br />5. Special inspection is required for, but not limited to, the following types of work. <br />Refer to the project specifications and the IBC for additional information regarding <br />testing and inspection requirements. <br />Soil preparation ........... ..........................Table 1704.7 <br />Structural concrete ....... ........................Section 109.3.1, Section 109.3.2, Table 1704.4 <br />Structural steel fabricator ....................Section 1704.2 <br />Structural steel construction ................Section 109.3.4, Table 1704.3 <br />6. The Engineer of Record shall not be considered a Special Inspector. <br />7. The Engineer of Record shall be provided jobsite access to conduct quality assurance. <br />STEEL COATINGS <br />Bids shall include costs for the more expensive of the coating processes listed below, <br />with the lesser cost option listed as an Alternate. Final decision on coatings will be <br />made by Henderson based on the costs submitted. <br />1. Abrasive blast steel to SSPC SP -10 <br />Apply two coats of Tnemec Series 61 Tneme -Liner at 8.0 to 12.0 mils DFT, beige color <br />Apply a single top coat of Tnemec Series 750 UVX <br />2. Abrasive blast steel to SSPC SP -6 <br />Apply one primer coat of Tnemec Series 90 -97 Tneme -Zinc at 3.0 mils dry thickness <br />Apply one top coat of Tnemec Series 73 Endura - Shield at 3.0 mils dry thickness <br />3. Alternate coating system proposed by Contractor, chosen to provide system performance <br />comparable to the specified Tnemec products, considering that primary exposure for 20 <br />years will be to UV and weather, with short term exposure to ACI category S2 water <br />soluble sulfate concentration of SO4 at 2% by mass in soil. <br />4. All steel which will be permanently buried in granular backfill materials is to be coated, <br />in addition to the materials specified above, with one coat of tar based sealant, such as <br />Tneme -Tar or approved equal. <br />DWG. NO. <br />REFERENCE DRAWINGS <br />DESCRIPTION OF REVISION <br />ISSUED FOR BID WALK <br />DATE <br />2 -28 -14 <br />I BY <br />JLK <br />APP BY <br />I VENTILATION <br />MECHANICAL <br />ENGR: JLK <br />DRAWN BY: JP <br />2 -28 -14 <br />2 -28 -14 <br />HENDERSON OPERATIONS <br />? <br />- Climax Molybdenum <br />�� <br />AFEMPIREIPMcMoROL Company <br />EMPIRE / PARSHALL, COLORADO <br />303 -569 -3221 <br />HENDERSON MILL <br />TAILINGS DROP LINE <br />STEEL AND SPECIAL INSPECTION <br />NOTES <br />STRUCTURAL <br />CHECKED BY: JCB <br />2 -28 -14 <br />ELECTRICAL <br />APPROVED BY: <br />PIPING <br />APPROVED BY: <br />SCALE: AS NOTED <br />OTHER APP BY: <br />PROJ. NO. 13024 SHT S0.3 REV. <br />