1、 IEEE Standard for Supporting Structures for Overhead Contact Systems for Transit Systems Sponsored by the Rail Transit Vehicle Interface Standards Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA 16 November 2012 IEEE Vehicular Technology Society IEEE Std 1630-2012IEEE Std 1630-2012 IEEE St
2、andard for Supporting Structures for Overhead Contact Systems for Transit Systems Sponsor Rail Transit Vehicle Interface Standards Committee of the IEEE Vehicular Technology Society Approved 19 October 2012 IEEE-SA Standards Board Abstract: Minimum structural requirements for structural supports use
3、d for overhead contact systems for heavy rail, light rail, and trolley bus systems, including loading, safety factors, and deflection are provided by this standard. This standard is developed to govern the design and fabrication of supporting structures for OCS. It is provided to define minimum gene
4、ral design and construction parameters for the following tubular steel pole types: tapered and constant diameter round, tapered and constant diameter multi-sided, sectional and fluted. Keywords: catenary, design, fabrication, IEEE 1630, OCS, overhead contact systems, pole, steel, structure, support,
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19、ion This introduction is not part of IEEE Std 1630-2012, IEEE Standard for Supporting Structures for Overhead Contact Systems for Transit Systems. The vast majority of the presently operating electrified rail transit systems use overhead contact systems (OCS) or third rail to supply direct-current p
20、ower to the rail vehicles. The OCS Sub-Committee for Rail Transit Systems was formed in 2001 with the purpose of developing standards governing the design and construction of OCS for rail transit. The primary concern of the committee regarding OCS was the lack of uniform practices for the design, fa
21、brication and maintenance of components of the OCS, including but not limited to the structural supports, components and hardware, system parameters and operating procedures, and equipment. The purpose of this standard is to standardize the design and fabrication of supporting structures for OCS. A
22、variety of structure types, styles, sizes, and strengths are currently in use throughout the industry. By standardizing or limiting the size, material, and strength of supporting structures for OCS, economies of scale and reduction in overall stockpile requirements can be observed. It is the goal of
23、 this standard to direct the OCS designer and manufacturer toward economizing the construction of supporting structures for OCS and their corresponding footings through consistency and standardization. This standard is intended for use by the following: OCS designers to assist in the selection and s
24、pecification of structure types and sizes Geotechnical engineers to use as a basis for developing footing sizes and anchor bolt configurations Owners and maintainers of new or existing OCS Contractors that construct new OCS Manufacturers The standard is written to establish the minimum standards and
25、 performance requirements to be followed in the design and fabrication of supporting structures for OCS. Its overall goal is to standardize the size and configuration of OCS structures, as much as practical, thereby minimizing the great variety of differing sizes in service and leading to uniformity
26、 of design and construction practices throughout the industry. The current standard only addresses tubular steel OCS poles. Future updates will include other supporting structure types (i.e., steel wide-flange poles, portals, and foundations). The current standard contains the following main parts:
27、A listing of all materials suitable for use in fabrication of all pole elements including the pole shaft, base plate, anchor rods, and miscellaneous appurtenances. A detailed description of the process to be utilized by the OCS designer and/or pole manufacturer in the design (strength and serviceabi
28、lity) of OCS poles. Methodology includes methods of loading calculation, loading presentation, strength design, and deflection calculation. A tabulated representation of the most commonly produced pole shapes, sizes and properties including pole diameter, wall thickness, loading capacity and deflect
29、ion characteristics. Tables have been provided for round, 8-sided, 12-sided, 16-sided, sectional, and square tubular poles. Deflection characteristics for both tapered and non-tapered applications are included. A tabulated representation of standard base plate and anchor bolt arrangements for use wi
30、th the commonly produced poles. These tables allow the OCS designer to select individual pole and base plate combinations as required to meet the project specific loading and serviceability requirements. Pole testing requirements pertaining to materials, welding, deflection, and protective coatings.
31、 An informative annex also includes the description of a commonly used deflection test procedure. Acceptable construction and fabrication tolerances. Acceptable methods of corrosion protection including galvanizing, metallizing, and painting. This standard does not include guidance for the installation of the poles or construction of their associated foundations.
