Step Joint Bars Spec.pdf
PDF 231 KB Posted
- Attached to
- IFB 18C-21 CAST RESTRAINING RAIL PLATES
- Solicitation number
- BD-21-1206-40000-42602-58727
- Issued by
- Suffolk County, Massachusetts
About this file
This document is a material specification from the Massachusetts Bay Transportation Authority (MBTA) Maintenance of Way Division for Step Joint Bars and Associated Hardware. The specification outlines the required materials, manufacture, design, and inspection and delivery requirements for step joint bar assemblies, track bolts, nuts, and lock washers. The step joint bars must conform to AREMA standards and MBTA Plan No. 350S. The order will specify the length of the bars and rail section. The track bolts, nuts, and lock washers must also meet AREMA standards, with specified bolt diameter, length, and lock washer configuration. Inspection, testing, and certification are required prior to shipment, which must be palletized and packaged as indicated.
This material specification is related to the state and local contract opportunity "IFB 18C-21 CAST RESTRAINING RAIL PLATES" issued by the state of Massachusetts. The contract is for the procurement of cast restraining rail plates, though the specifics of the pricing terms, set asides, funding, and other details are not provided in this document.
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Text version
MBTA M.O.W. Division
Material Specifications
August 2017
MASSACHUSETTS BAY TRANSPORTATION AUTHORITY
MAINTENANCE OF WAY DIVISION
TRACK MATERIAL SPECIFICATION
Step Joint Bar and Associated Hardware
MATERIAL AND MANUFACTURE
Step joint bar assembly to consist of two toeless, headfree bars of the rail section and length indicated, track bolts, nuts and washers in quantity as dictated by the specified joint bar length. All material and processes shall be in accordance with the current
AREMA manual for Railway Engineering, Chapter 4, Part 3 – Specifications for
Quenched Carbon Steel Joint Bars.
Track bolts and nuts material and manufacture shall be in accordance with the current
AREMA Manual, Chapter 4, Part 3 – Specifications for Heat-Treated Carbon Steel Track
Bolts and Carbon Steel Nuts.
1. Prior to shipment, entire bolt thread shall be coated with an appropriate oil or grease to protect the threads during shipment and storage.
2. Bolt and nut shall be assembled for shipment by turning the nut onto the bolt at least two threads.
Lockwasher material and manufacturer shall be in accordance with the current AREMA
Manual, Chapter 4, Part 3 – Specifications for Spring Washers.
DESIGN
Step joint bars shall be in accordance with Plan No. 350S in the MBTA M.O.W. Division
Book of Standard Trackwork Plans. Varying lengths of bars and different rail sections may be specified by any particular order. Length and bar punching will be indicated in the order.
Track bolts shall be rolled, button-head, elliptic neck bolts with wrench fit thread and shall be provided with standard square nuts all per the current AREMA Manual Chapter
4, Part 1. Bolt diameter and length shall be as specified in the order.
Lock washer diameter shall be as specified in the order and washer configuration shall conform to requirements of ANSI, B27.1, for Extra Heavy Duty Helical Spring Lock
Washers.
MBTA M.O.W. Division
Material Specifications
August 2017
INSPECTION AND DELIVERY
Inspection and testing shall be in conformance with the inspection procedures outlined in the current AREMA Manual, Chapter 4, Part 2 & 3.
Prior to shipment, the manufacturer or supplier shall submit certified inspection and test reports as required.
Joints shall be wired into matched pairs, palletized and strapped for shipment.
Bolts and nuts shall be packed in sealed kegs with a maximum of 200 lbs. per keg. Kegs shall be palletized and wrapped or strapped for shipment.
Lock washers shall be packed in steel pails or kegs with a maximum of 200 lbs. per container.
To be accepted, all material specified herein shall conform to these Specifications in every respect. Material is at the supplier’s risk until accepted at the specified delivery site by an authorized representative of the MBTA. Material rejected for non-compliance with these Specifications will be returned to the supplier wholly at the supplier’s expense.
M.O.W.
DIVISION
STEP JOINT BAR DETAILS
FOR 115 RE NEW TO 115 RE WORN RAIL
| Step Joint Bars and Associated Hardware |
| STP - DWG - 350S |
File details come from the government source that posted it. Updated .