STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS

Transcription

1 SOUTHEASTERN PENNSYLVANIA TRANSPORTATION AUTHORITY 1234 MARKET STREET, PHILADELPHIA, PA STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS REVISION DATE SPECIFICATION # F-S-304_ DATE: January 2015_

2 TABLE OF CONTENTS DIVISION 1 GENERAL REQUIREMENTS SUMMARY TO SUMMARY OF WORK ADMINISTRATIVE REQUIREMENTS TO SCHEDULE SUBMITTAL PROCEDURES DIVISION 5 METALS STRUCTURAL ALUMINUM FRAMING TO STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS TOC

3 DIVISION 1 GENERAL REQUIREMENTS SECTION SUMMARY SUMMARY OF WORK This specification covers the detailing, materials, manufacture, handling, and shipping of structural aluminum framing for railroad passenger shelters produced in accordance with the drawings and these specifications. END OF SECTION STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS

4 DIVISION 1 GENERAL REQUIREMENTS SECTION ADMINISTRATIVE REQUIREMENTS SCHEDULE A. Submittals are due within (30) calendar days after the contractor s receipt of SEPTA s Notice To Proceed. B. The Fabricator shall allow 10 working days for review and processing by SEPTA following its receipt of submittals. C. Delivery is due within (45) days from receipt of approved submittals SUBMITTAL PROCEDURES PART 1 GENERAL A. The Contractor shall not proceed with the procurement, manufacture, or fabrication of items submitted for review, until such submittals have been designated by the Project manager as No Exceptions Taken or Proceed as Noted; Revise and Resubmit for Record unless specifically authorized to do so by the Project Manager. B. Review 1. Submittals will be reviewed by the SEPTA Structural Engineering Group. The results of review of submittals will have status as follows: NO EXCEPTIONS TAKEN PROCEED AS NOTED; REVISE AND RESUBMIT FOR RECORD DO NOT PROCEED; REVISE AND RESUBMIT REJECTED NOT APPLICABLE 2. Review and Processing shall not relieve the Fabricator from responsibility for errors which may exist in the submitted data. 3. Submittals not in compliance with the Contract will be returned to the Fabricator for revision. Any loss of time and additional costs associated with resubmittal(s) shall be the Fabricator's responsibility. 4. Submittals that are "Proceed as Noted" are for the purpose of expediting procurement fabrication installation of the intended work. The Fabricator shall incorporate all corrections and resubmit to SEPTA original sepias and required copies of drawings within 30 days of the "Proceed as Noted" action. STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS

5 PART 2 - PRODUCTS 1. Provide submittals per Section PART 3 (NOT USED) END OF SECTION STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS

6 SECTION STRUCTURAL ALUMINUM FRAMING PART 1 - GENERAL 1.01 SUMMARY A. Related Documents: 1. Drawings and the General Requirements of the Contract apply to this Section. 2. Review these documents for coordination with additional requirements and information that apply to work under this Section. B. Section Includes: 1. Aluminum framing members and connections REFERENCES A. General: 1. The following documents form part of the Specifications to the extent stated. Where differences exist between codes and standards, the one affording the greatest protection shall apply. 2. Unless otherwise noted, the referenced standard edition is the current one at the time of commencement of the Work. B. Federal Specifications: 1. TT-P-645 Paint, Aluminum, Heat Resisting C. Aluminum Association: 1. Aluminum Design Manual D. ASTM International: 1. ASTM B308 / B308M Standard Specification for Aluminum-Alloy 6061-T6 Standard Structural Profiles 2. ASTM B221 Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes 3. ASTM B429 Standard Specification for Aluminum-Alloy Extruded Structural Pipe and Tube E. American Welding Society: 1. AWS D1.2 - Structural Welding Code, Aluminum SUBMITTALS A. Submit per Section B. Shop Drawings: For aluminum fabrications as follows: 1. Complete fabrication plans. 2. Connections, including size and spacing of welds. STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS

7 3. Indicate profiles, sizes, spacing, and locations of structural members, openings, and attachments. 4. Indicate welded connections with AWS welding symbols. Indicate net weld lengths. Include details of welding materials, equipment, sequence and technique to be used. C. Mill Test Reports: Submit mill test reports indicating structural strength, destructive and nondestructive test analysis and chemical analyses from the aluminum used in the Work. D. Welders' Certificates: Documentation certifying welders meet AWS qualifications. E. Submit the following as specified elsewhere in this Section: 1. Written welding procedures in accordance with AWS D Procedure qualification records in accordance with AWS D.1.2 for procedures qualified by testing. 3. Inspection reports of the independent testing laboratory QUALITY ASSURANCE A. Fabricate aluminum members in accordance with CBC and Aluminum Design Manual Specification for Aluminum Structures - Building Load and Resistance Factor Design. B. Welders shall be qualified in accordance with AWS D1.2 for each process, position and joint configuration. C. Maintain one copy of each referenced document on site. D. Delegated Design Responsibilities: Design connections not detailed on the Drawings under the supervision of a Professional Engineer experienced in design of aluminum and licensed in the State of Pennsylvania WARRANTY A. The Fabricator shall provide a one-year warranty on all fabrication against fabrication and finish failure, mill scale, rusting, corrosion, and/or discoloration. PART 2 - PRODUCTS 2.01 MATERIALS A. All materials shall be domestic. B. Rolled and Extruded Members: Alloy C. Aluminum Tubing: Alloy D. Bolts, Nuts, and Washers (if used): 1. Bolts and Nuts in Structural Connections: alloy Flat Washers: Alclad 2024-T4. 3. Spring Washers: alloy 7075 or AISI 316 stainless steel. STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS

8 E. Welding Materials: 1. Filler Metals: AWS D Electrodes and Equipment Settings: As recommended by the filler metal manufacturer for the position, thickness and conditions of use. 3. Furnish written verification to SEPTA that filler metal is appropriate to the materials and welding process CONNECTIONS A. Unless otherwise indicated on the Drawings, weld connections. Weld in accordance with approved welding procedures. B. The Fabricator s Engineer is responsible for the design of the connections not detailed on the Drawings. C. The frame section s welded connections shall develop 100% of the section s strength FABRICATION A. Fabricate aluminum members in accordance with the approved Shop Drawings. Where practical, fabricate and assemble in the shop. B. Dimensional Tolerances: 1. Overall length of members with both ends milled shall vary by not more than 1/32-inch. 2. Overall length of members without milled ends shall vary by not more than 1/16-inch for lengths less than 30 feet and not more than 1/8-inch for lengths 30 feet and over. C. Where structural joints are welded, the detail of the joints, welding technique, weld quality and appearance, and methods for correcting defective welds shall conform to the AWS D Welding Process: Inert shielded gas or resistance welding process. D. Where milling is indicated on the Drawings, machine the contact surfaces true to obtain full and complete contact. E. Miter all corners. F. Structural members are selected from generally available rolled sections; however, if the specified sections are not available, provide sections with equivalent physical properties at no additional cost after approval by SEPTA. G. The open end of all tubes shall be closed with a ¼-inch thick (minimum) closure plate FINISHES A. Paint (Sherwin Williams): 1. Surface prep wash primed 2. 1 coat Corothane I - MIO Aluminum Primer B65S coats High Solids Polyurethane B Color Urbane Bronze SW 7048 STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS

9 PART 3 - EXECUTION 3.01 INSPECTION AND TESTING A. The Fabricator shall be responsible for in-house visual inspection and implementing a quality control program. B. Notify SEPTA of the fabrication schedule and permit SEPTA's representative to observe shop assembly and make visual inspections. Correct defective work, rejected by SEPTA at no additional cost to SEPTA. C. Fabricator shall employ a certified welding inspector to verify that welds are made in accordance with approved welding procedures and visually inspect welding operations. Perform nondestructive testing of welding to the criteria in AWS chapter 5. D. Full penetration groove welds shall be tested by a qualified technician who will operate the equipment, record any defects found and their disposition. The technician will be under the supervision of a Level II or III ASNT technician. Repair and re-test defective welds at no additional cost to SEPTA. E. Initially, 100percent of the welds which require testing shall be tested to establish the qualifications of each individual welder. If the reject rate of a welder's work is demonstrated to be less than 5 percent of the tested welds, then the frequency of testing may be reduced to 25 percent. If the reject rate of a welder's work increases to 5 percent or more, 100 percent shall be re-established until the rate is reduced to less than 5 percent. The percentage of rejection shall be calculated and recorded for each welder. The body of data used to calculate the reject rate shall contain at least 40 tests. The reject rate is defined as the number of rejected welds divided by the number of welds completed multiplied by 100. For evaluating the reject rate of continuous welds over 3 feet long, each 12 inch increment one inch or less thick, shall be considered one weld and each 6 inch increment over one inch thick, shall be considered one weld PREPARATION A. Provide temporary supports and internal braces necessary to support structure during shipping and erection. Temporary supports and braces shall be adequate for anticipated wind, seismic, equipment and erection loads HANDLING AND DELIVERY A. Material shall be stored out of contact with the ground in such manner and location to minimize deterioration. B. Site Access Access to the site shall be coordinated through SEPTA. C. The fabricator shall be responsible for transporting the fabricated shelter(s) to the location(s) as indicated on the contract documents. D. Deliver in accordance with industry standards, federal, state and local regulations, and as specified herein. Offloading will be conducted by SEPTA. STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS

10 E. Handle fabricated shelter(s) in a manner that will not overstress or damage the aluminum or coatings. Nylon slings or other suitable devices shall be utilized to minimize damage to the coatings. The Fabricator is responsible to repair all damaged aluminum and coatings to the satisfaction of SEPTA. F. Provide SEPTA one week notice prior to shipment and delivery to the site. G. The fabricator is responsible to obtain any and all permits and approvals required to ship the units INSTALLATION A. Installation will be by SEPTA. END OF SECTION STANDARD SPECIFICATION FOR ALUMINUM FRAMING FOR RAILROAD PASSENGER SHELTERS

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