Table D - Exhibit # 5 – SOW, Specification - Special Trackwork Components.pdf

Table D – Exhibit $ 5 – SOW, Special Trackwork Components 1

PROCUREMENT OF SPECIAL TRACKWORK COMPONENTS SP-12

SPECIAL TRACKWORK COMPONENTS

PART 1: GENERAL

1.01 DESCRIPTION

A. This Section specifies the manufacture, treatment, inspection, and shipment of new Special

Trackwork components to include the following:

1. LH 26’ Switch Point for No. 15 Turnout

2. RH 26’ Switch Point for No. 15 Turnout

3. LH 19’ 6” Switch Point for No. 10 Turnout

4. RH 19’ 6” Switch Point for No. 10 Turnout

5. LH Straight Stock Rail for No. 15 Turnout

6. RH Straight Stock Rail for No. 15 Turnout

7. LH Curved Stock Rail for No. 15 Turnout

8. RH Curved Stock Rail for No. 15Turnout

9. LH Straight Stock Rail for No. 10 Turnout

10. RH Straight Stock Rail for No. 10 Turnout

11. LH Curved Stock Rail for No. 10 Turnout

12. RH Curved Stock Rail for No. 10Turnout

B. The procurement of special trackwork components shall include furnishing all labor, materials, and equipment required for the following:

1. Design

2. Manufacturing

3. Testing

4. Shipping and delivery to the designated MTA Light Rail and Metro storage areas

5. Unloading and stacking

1.02 DEFINITIONS AND ABBREVIATIONS

A. Definitions as specified in AREMA Portfolio of trackwork Plans, Plan No. 101

“Definitions of Terms Relating to Trackwork”.

B. Abbreviations

1. ANSI American National Standards Institute

Table D – Exhibit $ 5 – SOW, Special Trackwork Components 2

PROCUREMENT OF SPECIAL TRACKWORK COMPONENTS SP-13

2. AREMA American Railway Engineering and Maintenance of Way

Association

3. ASTM ASTM International

4. BHN Brinell Hardness Number

5. HDPE High Density Polyethylene

1.03 DESIGN CRITERIA

A. Design and manufacturing of special trackwork components shall be in accordance with AREMA Portfolio of Trackwork Plans, except as may be modified by the manufacturer for compatibility with their product and these Special Provisions.

1.04 SUBMITTALS

A. Submit the following:

1. Date schedule of rail production, inspection, shipment, and final delivery.

2. Detailed description of steel metallurgy.

3. Ultrasonic testing method and equipment.

4. Detailed description of the method and verification testing to achieve required rail hardness.

5. Certified rail test report showing the test results for chemical composition, yield strength, tensile strength, elongation percentage, and testing date for each heat of rail.

6. Mill certificate of inspections and Brinell hardness readings.

1.05QUALITY ASSURANCE/CONTROL

A. Provide information regarding the Manufacturer’s In-house Quality Assurance and

Control plan.

PART 2: PRODUCTS

2.01 SWITCH POINTS

A. Supply switch points with graduated risers in accordance with AREMA Portfolio of

Trackwork Plans, with lengths of point rails as indicated for a No. 15 and No. 10 switch, RH and LH complete.

B. Supply stock rails in accordance with AREMA Portfolio of Trackwork Plans, with lengths as indicated for No. 15 and No. 10 Turnouts.

Table D – Exhibit $ 5 – SOW, Special Trackwork Components 3

PROCUREMENT OF SPECIAL TRACKWORK COMPONENTS SP-14

C. Rails

1. Switch points and stock rails shall be planned to conform with Detail 5100 of

AREMA Portfolio of Trackwork Plans, Plan 221, Point Detail 5100.

2. Steel rails shall be 115RE heat treated and conform to the latest requirements of the AREMA Manual for Railway Engineering, Chapter 4 “Rail” Part 1 and 2.

3. For drilled rails, allowable tolerances for 39-foot and 78-foot rail lengths are +/-

7/8 inch. For undrilled rails, a variance of +/- 2 inches is permitted.

4. Rail shall be ultrasonically tested over its full length 100% in-line with a fully computerized DAPCO 300 testing unit or approved equal. Testing shall conform to the requirements of Chapter 4, Part 2, Section 8 of the AREMA Manual.

5. Rails shall have a maximum allowable direct current (DC) resistance of not more than 8.68 x 10-6 ohms per foot.

6. Rail hardness shall conform to the requirements of AREMA Manual Chapter 4, Part 2, using the Brinell (ASTM E10) method.

7. Strength properties of the rail shall conform to the requirements of AREMA

Manual Chapter 4, Part 2.

8. Chemical properties of the rail shall conform to the requirements of AREMA

Manual Chapter 4, Part 2.

PART 3 – EXECUTION

3.01 SHOP LAYOUT AND INSPECTION

A. Assemble switch points and stock rails to each other in pairs. Units shall be match marked, disassembled, and packaged for delivery.

B. The Administration shall have the authority to reject any material, work in progress, or finished work that fails to meet the requirements of these Specifications and shall have the authority to specify corrective work as necessary to meet the requirements.

C. Tolerances: Components shall be fabricated in accordance with tolerances specified in

AREMA Portfolio of Trackwork Plans, Plans Nos. 1020 and 1021.

D. Internal Soundness of Manganese Castings: In accordance with AREMA Portfolio of

Trackwork Plans, Plans Nos. 1012 and 1017.

3.02 DELIVERY AND STORAGE

A. Shipping and Handling

Table D – Exhibit $ 5 – SOW, Special Trackwork Components 4

PROCUREMENT OF SPECIAL TRACKWORK COMPONENTS SP-15

1. Special Trackwork components shall be handled carefully to avoid damage and shall be loaded head up with the branding shown on all rails facing in the same direction.

2. Special Trackwork components shall be loaded with head up with adequate wood strips between layers of rail to prevent damage in transit.

B. Storage

1. Special trackwork components shall be stored to minimize rust and corrosion.

Rails and frogs shall be stacked for easy handling and maintain cleanliness for visual inspection.

2. Rails shall be stacked in such a way as to prevent sagging.

3. Rails, frogs, and hardware shall be protected from exposure to the elements to prevent excessive corrosion during storage and to protect the rail ends from physical damage.

END OF SECTION

PART 2: PRODUCTS