MATERIAL SPECIFICATION FOR STANDARD HIGHWAY FENCE COMPONENTS

Transcription

1 ONTARIO PROVINCIAL STANDARD SPECIFICATION METRIC OPSS 1540 NOVEMBER 2012 MATERIAL SPECIFICATION FOR STANDARD HIGHWAY FENCE COMPONENTS TABLE OF CONTENTS SCOPE REFERENCES DEFINITIONS DESIGN AND SUBMISSION REQUIREMENTS - Not Used MATERIALS EQUIPMENT - Not Used PRODUCTION QUALITY ASSURANCE - Not Used OWNER PURCHASE OF MATERIAL APPENDICES 1540-A Commentary SCOPE This specification covers the requirements for highway fence components and hardware Specification Significance and Use This specification has been developed for use in provincial- and municipal-oriented Contracts. The administration, testing, and payment policies, procedures, and practices reflected in this specification correspond to those used by many municipalities and the Ontario Ministry of Transportation. Use of this specification or any other specification shall be according to the Contract Documents. Page 1 Rev. Date: 11/2012 OPSS 1540

2 Appendices Significance and Use Appendices are not for use in provincial contracts as they are developed for municipal use, and then, only when invoked by the Owner. Appendices are developed for the Owner s use only. Inclusion of an appendix as part of the Contract Documents is solely at the discretion of the Owner. Appendices are not a mandatory part of this specification and only become part of the Contract Documents as the Owner invokes them. Invoking a particular appendix does not obligate an Owner to use all available appendices. Only invoked appendices form part of the Contract Documents. The decision to use any appendix is determined by an Owner after considering their contract requirements and their administrative, payment, and testing procedures, policies, and practices. Depending on these considerations, an Owner may not wish to invoke some or any of the available appendices REFERENCES When the Contract Documents indicate that provincial-oriented specifications are to be used and there is a provincial-oriented specification of the same number as those listed below, references within this specification to an OPSS shall be deemed to mean OPSS.PROV, unless use of a municipal-oriented specification is specified in the Contract Documents. When there is not a corresponding provincialoriented specification, the references below shall be considered to be to the OPSS listed, unless use of a municipal-oriented specification is specified in the Contract Documents. When the Contract Documents indicate that municipal-oriented specifications are to be used and there is a municipal-oriented specification of the same number as those listed below, references within this specification to an OPSS shall be deemed to mean OPSS.MUNI, unless use of a provincial-oriented specification is specified in the Contract Documents. When there is not a corresponding municipaloriented specification, the references below shall be considered to be the OPSS listed, unless use of a provincial-oriented specification is specified in the Contract Documents. This specification refers to the following standards, specifications, or publications: Ontario Provincial Standard Specifications, Material OPSS 1601 Wood, Preservation Treatment, and Shop Fabrication Canadian General Standards Board (CGSB) Steel Framework for Chain-Link Fence ASTM International A Metallic-Coated, Steel-Woven Wire Fence Fabric A 641/A 641M-09a Zinc-Coated (Galvanized) Carbon Steel Wire A (2006) Steel Fence Posts and Assemblies, Hot Wrought Others NLGA Standard Grading Rules for Canadian Lumber (2003) Page 2 Rev. Date: 11/2012 OPSS 1540

3 DEFINITIONS For the purpose of this specification, the following definitions apply: Chain and Hook means hardware to hold the gate in place when closed. Hinge Bolt means hardware that attaches to the gatepost that fits into the hinge clip to permit the gate to swing. Hinge Clip means hardware that attaches to the gate frame and functions with the hinge bolt. Sweep means the deviation of a wooden brace from straightness MATERIALS Fence Fabric The fence fabric shall be one type according to Table 1. Locks or fastening at the intersections of the line and stay wires of the woven fence fabric shall prevent longitudinal and vertical slipping. Fence fabric shall be galvanized prior to fabrication to provide a minimum weight of metallic coating according to ASTM A 641, Class Wooden Posts Wooden posts shall be according to OPSS Wooden terminal posts shall have a minimum diameter of 200 mm. Wooden line posts shall have a minimum diameter of 150 mm. The maximum diameter of the large end of any wooden post shall be 330 mm Steel Posts Steel line posts shall be T-rail posts. T-rail posts and angle iron posts shall be galvanized and according to ASTM A 702. T-rail posts shall be 2.4 m long and punched so that the fence fabric can be secured to the broad face of the post. Each post shall be supplied with nine steel wire ties for securing the fence fabric Steel Wire Ties Steel wire ties shall be galvanized and according to ASTM A Diagonal Wooden Braces Diagonal wooden braces shall be round or sawn Eastern White Cedar, Jack Pine, Red Pine, or Southern Yellow Pine according to OPSS Round braces shall be a minimum diameter of 110 mm and maximum diameter of 165 mm. Sawn braces shall be a minimum 100 x 100 mm and in sound condition according to NLGA Standard Grading Rules for Canadian Lumber, Utility Light Framing. Diagonal wooden braces shall have a maximum sweep of 25 mm. Page 3 Rev. Date: 11/2012 OPSS 1540

4 Diagonal Brace Wire Diagonal brace wire shall consist of four strands of 3.5 mm diameter, galvanized, soft steel Staples Staples for wooden posts shall be 4.0 mm diameter, galvanized, with a minimum driving length of 45 mm Gates Gates shall be constructed from 43 mm outside diameter galvanized steel pipe for the frame and 32 mm outside diameter galvanized steel pipe for the braces according to the requirements for galvanized standard-weight pipe, CAN/CGSB All joints shall be electrically welded and coated with a zinc rich paint. All required hardware and galvanizing of such parts shall be according to CAN/CGSB Mechanical Splicing Units and Crimp Sleeves Mechanical splice units or crimping sleeves shall provide a maximum load carrying capacity that meets or exceeds the minimum breaking strength of the fence fabric line wires. For 3.50 mm and 3.76 mm diameter line wire, the minimum breaking strength of the splice shall be 4,590 N PRODUCTION Gates Gates shall be supplied completely assembled, including the fence fabric. The fabric and other components used on the gates shall match the adjacent fence. All gates shall be supplied with galvanized chain and hook, hinge bolts, and hinge clips OWNER PURCHASE OF MATERIAL Measurement and Payment Measurement of highway fence fabric shall be by length in metres. For measurement purposes, a count shall be made of the number of steel fence posts delivered and accepted. Measurement of staples shall be by mass in kilograms, delivered and accepted. Staples shall be delivered in units weighing 50 kg or less. Measurement of brace wire shall be by mass in kilograms, delivered and accepted. Brace wire shall be delivered in coils weighing 25 kg or less. For measurement purposes, a count shall be made of the number of gates, including hardware, delivered and accepted, regardless of the size and type of gate. Double gates shall be counted as one gate. Payment at the price specified in the purchasing order shall be for the supply of fence fabric, steel fence posts, staples, brace wires, or gates delivered to the destination on the date and time specified. The cost of all testing, except that performed in the Owner s laboratory, shall be included in the price. Page 4 Rev. Date: 11/2012 OPSS 1540

5 TABLE 1 Fence Fabric Fence Fabric Design Number Number of Horizontal Wires Height mm Wire Diameter mm Stay Wire Spacing mm Standard ASTM A ASTM A ASTM A 641 Page 5 Rev. Date: 11/2012 OPSS 1540

6 Appendix 1540-A, November 2012 FOR USE WHILE DESIGNING MUNICIPAL CONTRACTS Note: This is a non-mandatory Commentary Appendix intended to provide information to a designer, during the design stage of a contract, on the use of the OPS specification in a municipal contract. This appendix does not form part of the standard specification. Actions and considerations discussed in this appendix are for information purposes only and do not supersede an Owner s design decisions and methodology. Designer Action/Considerations The designer should ensure that the General Conditions of Contract and the 100 Series General Specifications are included in the Contract Documents. Related Ontario Provincial Standard Drawings OPSD OPSD Fence, Highway, In Earth, Shale, Loose Rock, Or Friable Rock, Installation Fence, Highway, In Solid Rock, Installation Page 6 Rev. Date: 11/2012 OPSS 1540