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1、 ASCE Manuals and Reports on Engineering Practice No. 91Design of GuyedElectrical TransmissionStructuresPrepared by theSubcommittee on Guyed Transmission Structures of theCommittee on Electrical Transmission Structures ofThe Structural Engineering Institute of theAmerican Society of Civil EngineersP

2、ublished byjff 0tS American Society40(nE of Civil Engineers1801 Alexander Bell DriveReston,VA20191Abstract:Guyed structures are commonly used to support electric transmission lines. They generally have the advantage oflightweight, erection ease, pre-assembly, and simple foundation design. There is a

3、 considerable range ofapplications, from simple guyed wood poles to the very large guyed steel latticed structures. This guide wasprepared to supplement the various ASCE and IEEE guides for the design of electrical transmission structures. Thispublication describes the various types of guyed structu

4、res that have been used; presents typical guys and fittings;illustrates guy anchors and foundations; explores analysis and design techniques specific to guyed structures;discusses unique construction and maintenance problems; and displays both hand and computer calculations toillustrate some of the

5、concepts discussed in the document.Library of Congress Cataloging-in-Publication DataAmerican Society of Civil Engineers. Committee on Electrical Transmission Structures. Subcommittee on GuyedTransmission Structures.Design of guyed electrical transmission structures / by the Subcommittee on Guyed Tr

6、ansmission Structures of theCommittee on Electrical Transmission Structures of The Structural Engineering Institute of the American Society ofCivil Engineers.p. cm. (ASCE manuals and reports on engineering practice ; no. 91)ISBN 0-7844-0284-11. Electric lines-Poles and towers-Design and construction

7、. 2. Guy anchors. I. Title. II. Series.TK3242.A52 1997 97-26968621.31922-dc21 CIPThe material presented in this publication has been prepared in accordance with generally recognizedengineering principles and practices, and is for general information only. This information should not be usedwithout f

8、irst securing competent advice with respect to its suitability for any general or specific application.The contents of this publication are not intended to be and should not be construed to be a standard of theAmerican Society of Civil Engineers (ASCE) and are not intended for use as a reference in

9、purchase specifications,contracts, regulations, statutes, or any other legal document.No reference made in this publication to any specific method, product, process or service constitutes orimplies an endorsement, recommendation, or warranty thereof by ASCE.ASCE makes no representation or warranty o

10、f any kind, whether express or implied, concerning theaccuracy, completeness, suitability, or utility of any information, apparatus, product, or process discussed in thispublication, and assumes no liability therefore.Anyone utilizing this information assumes all liability arising from such use, inc

11、luding but not limited toinfringement of any patent or patents.Photocopies. Authorization to photocopy material for internal or personal use under circumstances not fallingwithin the fair use provisions of the Copyright Act is granted by ASCE to libraries and other users registered withthe Copyright

12、 Clearance Center (CCC) Transactional Reporting Service, provided that the base fee of $4.00 perarticle plus $.25 per page is paid directly to CCC, 222 Rosewood Drive, Danvers, MA 01923. The identification forASCE Books is 0-7844-0284-1/97/$4.00 + $.25 per page. Requests for special permission or bu

13、lk copying shouldbe addressed to Permissions nor isit so elementary or so conclusive as to provide a “rule of thumb“ for nonengineers.Furthermore, material in this series, in distinction from a paper (which expresses only oneperson ps observations or opinions), is the work of a committee or group se

14、lected to assemble andexpress information on a specific topic. As often as practicable the committee is under thedirection of one or more of the Technical Divisions and Councils, and the product evolved hasbeen subjected to review by the Executive Committee of the Division or Council. As a step in t

15、heprocess of this review, proposed manuscripts are often brought before the members of theTechnical Divisions and Councils for comment, which may serve as the basis for improvement.When published, each work shows the names of the committees by which it was compiled andindicates clearly the several p

16、rocesses through which it has passed in review, in order that itsmerit may be definitely understood.In February 1962 (and revised in April, 1982) the Board of Direction voted to establish:A series entitled Manuals and Reports on Engineering Practice, to include theManuals published and authorized to

17、 date, future Manuals of ProfessionalPractice, and Reports on Engineering Practice. All such Manual or Reportmaterial of the Society would have been refereed in a manner approved by theBoard Committee on Publications and would be bound, with applicablediscussion, in books similar to past Manuals. Nu

18、mbering would be consecutiveand would be a continuation of present Manual numbers. In some cases of reportsof joint committees, bypassing of Journal publications may be authorized.# MANUALS AND REPORTS OF ENGINEERING PRACTICE10 Technical Procedures for City Surveys13 Filtering Materials for Sewage T

19、reatment Plants14 Accommodation of Utility Plant Within the Rights-of-Way of Urban Streets andHighways31 Design of Cylindrical Concrete Shell Roofs33 Cost Control and Accounting for Civil Engineers34 Definitions of Surveying and Associated Terms35 A List of Translations of Foreign Literature on Hydr

20、aulics36 Wastewater Treatment Plant Design37 Design and Construction of Sanitary and Storm Sewers40 Ground Water Management41 Plastic Design in Steel-A Guide and Commentary42 Design of Structures to Resist Nuclear Weapons Effects45 Consulting Engineering-A Guide for the Engagement of Engineering Ser

21、vices46 Report on Pipeline Location47 Selected Abstracts on Structural Applications of Plastics49 Urban Planning Guide50 Planning and Design Guidelines for Small Craft Harbors51 Survey of Current Structural Research52 Guide for the Design of Steel Transmission Towers53 Criteria for Maintenance of Mu

22、ltilane Highways54 Sedimentation Engineering55 Guide to Employment Conditions for Civil Engineers57 Management, Operation and Maintenance of Irrigation and Drainage Systems58 Structural Analysis and Design of Nuclear Plant Facilities59 Computer Pricing Practices60 Gravity Sanitary Sewer Design and C

23、onstruction62 Existing Sewer Evaluation and Rehabilitation63 Structural Plastics Design Manual64 Manual on Engineering Surveying65 Construction Cost Control66 Structural Plastics Selection Manual67 Wind Tunnel Model Studies of Buildings and Structures68 Aeration-A Wastewater Treatment Process69 Sulf

24、ide in Wastewater Collection and Treatment Systems70 Evapotranspiration and Irrigation Water Requirements71 Agricultural Salinity Assessment and Management72 Design of Steel Transmission Structures73 Quality in the Constructed Project-a Guide for Owners, Designers, andConstructors74 Guidelines for E

25、lectrical Transmission Line Structural Loading75 Right-of-Way Surveying76 Design of Municipal Wastewater Treatment Plants77 Design and Construction of Urban Stormwater Management Systems78 Structural Fire Protection79 Steel Penstocks80 Ship Channel Design81 Guidelines for Cloud Seeding to Augment Pr

26、ecipitation82 Odor Control in Wastewater Treatment Plants83 Environmental Site Investigation84 Mechanical Connections in Wood Structures85 Quality of Ground Water86 Operation and Maintenance of Ground Water Facilities87 Urban Runoff Quality Manual88 Management of Water Treatment Plant Residuals89 Pi

27、peline Crossings90 Guide to Structural Optimization91 Design of Guyed Electrical Transmission Structures92 Manhole Inspection and RehabilitationYiCONTENTSPreface ixChapter1 Introduction l2 Guyed Structures Configurations 32.1 General 32.2 Single Poles or Masts 42.2.1 Guying configurations 42.2.2 Pol

28、e or mast base 52.2.3 Limits of use 62.3 Stub Poles2.4 H-Frames (Multi-Pole Structures) 72.5 Rigid Frames 82.5.1 Guyed rigid latticed portal 82.5.2 GuyedrigidY 92.5.3 Guyed delta2.6 Masted Towers2.6.1 Guyed portal 112.6.2 Guyed V 12.6.3 Cross rope 32.6.4 GuyedhingedY 133 Guys and Guy Fittings 53.1 G

29、uy Materials 53.2 Guy Fittings 173.3 Tensioning Devices 204 Guy Anchors and Foundations 214.1 Deadman Anchors 214.2 Screw Anchors 24.3 Grouted Anchors 35 Analysis 275.1 Cable Behavior 275.2 Poles or Latticed Masts with Single Guy Attachment Point 315.2.1 Single guy level and hinged base 315.2.2 Sing

30、le guy level and fixed base 25.2.2.1 Effect of preload or foundation movement 355.2.2.2 Effect of temperature 36vvi DESIGN OF GUYED ELECTRIC TRANSMISSION STRUCTURES5.3 Poles or Latticed Masts with Multiple GuyAttachment Points 365.3.1 Multi-guy le veis and hinged base 365.3.2 Multi-guy levels and fi

31、xed base 75.4 Structures with Four Guys 375.5 Buckling Strength of Poles and Latticed Masts 385.5.1 Pole buckling strength 85.5.2 Equivalent beam model for latticed masts 405.6 Computer Modeling 425.6.1 Linear computer analysis 425.6.2 Nonlinear computer analysis 35.6.3 Modeling hints and details 45

32、.6.3.1 Special considerations for guyedconcrete poles 456 Design 476.1 Loadings and Design Restrictions 476.2 Guy Clearances 486.2.1 Electrical clearances 486.2.2 Mechanical clearances 86.3 Guy Design 96.3.1 Guy pretension 496.3.2 Allowable tensions 506.3.3 Guy slope 506.4 Guy Anchorage 16.5 Connect

33、ions 26.5.1 Guy connections to poles 526.5.2 Connections in latticed structures 526.6 Structural Design of Poles and H-Frames 36.7 Structural Design of Latticed Rigid Frames andMasted Towers 547 Construction and Maintenance 557.1 Design Considerations 57.2 Construction Considerations 57.3 Guyed Pole

34、s 567.3.1 Erection methods 567.3.2 Guy installation 67.4 Guyed Rigid Frames and Masted Towers 577.4.1 Erection methods 577.4.2 Crane erection 77.4.3 Helicopter erection 87.4.4 Guy installation 587.4.4.1 Traditional method 597.4.4.2 Alternate method 97 A A3 Guy pretension 60CONTENTS vii7.5 Erection T

35、olerances 607.5.1 Guyed poles and H-frames 607.5.2 Guyed rigid frames and masted towers 607.6 Inspection and Maintenance 18 Examples 638.1 Wood Poles 38.1.1 Dead-end pole with in-line guys in singlevertical plane 38.1.1.1 Analysis and buckling capacity bymanual methods 648.1.1.2 Analysis and bucklin

36、g capacity bynonlinear computer analysis 658.1.2 Ninety-degree angle pole with in-line guys 668.1.2.1 Analysis and buckling capacity bymanual methods 668.1.2.2 Analysis and buckling capacity bynonlinear computer analysis 668.2 Tubular Steel Poles 678.2.1 Bisector guyed pole 88.2.2 Effect of guy prop

37、erties on behavior of pole 708.3 GuyedV 728.3.1 Analysis for high wind loads 728.3.2 Analysis for unbalanced longitudinal load onouter phase 38.3.3 Analysis for combination of vertical, transverse,and longitudinal loads 738.3.4 Design of mast for guyed V 748.4 Guyed Delta 76AppendicesA REFERENCES 9B

38、 NOTATION 81Index 83This page intentionally left blank PREFACEIn 1991 the ASCE Committee on Electrical Transmission Structures (GETS)recommended that a subcommittee be formed to prepare a guide for the designof guyed transmission structures. The GETS has been or is being involved withthe publication

39、 of design guides for the structural and geometric design oftransmission or substation structures. Guides are or will soon be available forthe design of steel transmission towers, tubular steel poles and frames, pres-tressed concrete poles and frames, as well as substation structures. It was felttha

40、t none of the existing or upcoming guides contained enough informationregarding guyed structures. Therefore the GETS Subcommittee on GuyedTransmission Structures was established in 1991 to prepare this publication.This guide represents the consensus of opinion of the subcommittee andalthough the sub

41、ject matter of the guide has been thoroughly researched, itsapplication should come only after sound engineering judgment has been used.The many and unique contributions of H. Brian White to this documentthrough his work with the subcommittee and his paper on guyed structures(White 1993) are greatly

42、 appreciated.The subcommittee wishes to thank the Peer Review Committee for its contri-butions to the final draft of this document: Leon Kempner (Chair), LindsayEsterhuizen, Jake Kramer, and Goetz Schildt. It also wishes to acknowledge theassistance of the three chairmen of the GETS during whose ten

43、ure this guidewas conceived and developed: Anthony DiGioia, Alain Peyrot, and Leon Kem-pner.Respectfully submitted:Subcommittee on Guyed Transmission StructuresCommittee on Electrical Transmission StructuresClayton L. Clem Michael D. MillerJames S. Cohen Robert E. Nickerson (Vice Chair)Martin L. De

44、La Rosa Alain H. Peyrot (Chair)Michael Gall Ronald E. RndleMagdi F. Ishac Randall L. SamsonMassoud Khavari Joe SpringerRichard Kravitz Larry D. VandergriendJerry Lembke H. Brian WhiteRobert M. McCafferty Jerry WongixThis page intentionally left blank Chapter 1INTRODUCTIONGuyed structures are commonl

45、y used to support electric transmis-sion lines. They generally have the advantage of light weight, erec-tion ease, pre-assembly, and simple foundation design. There is aconsiderable range of applications, from the simple guyed woodpoles to the very large guyed steel latticed structures. Although the

46、advantages of guying a simple pole structure are well understood bydesigners, there is generally a poor understanding of the potentialbenefits or problems associated with other types of guyed structures.In addition, there is currently very little published information de-scribing appropriate analysi

47、s or design techniques applicable to allguyed transmission structures.This manual was prepared to supplement the various ASCE andIEEE guides for the design of electrical transmission structures(ANSI / ASCE 1991; ASCE 1990; ASCE 1991; IEEE 1985; IEEE 1991)with much needed information on the proper us

48、e and design ofguyed structures. Guyed structures made of all common materialsare covered (reinforced or prestressed concrete, aluminum, steel, orwood).Section 2 describes the various types of guyed structures that havebeen used and their relative advantages and disadvantages. Typicalguys and fittin

49、gs are presented in Section 3 and guy anchors andfoundations are illustrated in Section 4. In Sections 5 and 6, analysisand design techniques specific to guyed structures are presented.Section 7 discusses unique construction and maintenance problemspresented by guyed structures. Finally, in Section 8, both hand andcomputer calculations illustrate some of the concepts discussed inthe document.1This page intentionally left blank Chapter 2GUYED STRUCTURES CONFIGURATIONS2.1 GENERALThe overall configuration of