【AS澳大利亚标准】AS NZS 3845-1999 Road safety barrier systems

1、AS/NZS 3845:1999Australian/New Zealand StandardRoad safety barrier systemsThe Standard is downloaded from HYPERLINK HYPERLINK / Standard SharingAS/NZS 3845:1999This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee CE/33, Road Safety Barrier Systems. It was approved on

2、behalf of the Council of Standards Australia on 9 October 1998 and on behalf of the Council of Standards New Zealand on 12 October 1998. It was published on 5 January 1999.The following interests are represented on Committee CE/33:Australian Automobile Association Australian Motorcycle Council AUSTR

3、OADSComposites Institute of Australia Department of Transport, S.A. Galvanizers Association of Australia Institution of Engineers AustraliaMetal Trades Industry Association of AustraliaNew Zealand Concrete SocietyNew Zealand Employers and Manufacturers AssociationNew Zealand Manufacturers Federation

4、Plastics and Chemicals Industries AssociationQueensland University of TechnologyTransit New ZealandReview of Standards. To keep abreast of progress in industry, Joint Australian/ New Zealand Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions a

5、s necessary. It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto.Full details of all Joint Standards and related publications will be found in the Standards Australia and Standards New Zealand Catalogue of Publications;

6、this information is supplemented each month by the magazines The Australian Standard and Standards New Zealand, which subscribing members receive, and which give details of new publications, new editions and amendments, and of withdrawn Standards.Suggestions for improvements to Joint Standards, addr

7、essed to the head office of either Standards Australia or Standards New Zealand, are welcomed. Notification of any inaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should be made without delay in order that the matter may be investigated and appropriate action taken.This Stan

8、dard was issued in draft form for comment as DR 97016.AS/NZS 3845:1999Australian/New Zealand StandardRoad safety barrier systemsFirst published as AS/NZS 3845:1999.Published jointly by: Standards Australia1 The Crescent,Homebush NSW 2140 AustraliaStandards New ZealandLevel 10, Radio New Zealand Hous

9、e,155 The Terrace,Wellington 6001 New ZealandISBN 0 7337 2293 8The Standard is downloaded from HYPERLINK HYPERLINK / Standard SharingPREFACEThis Standard was prepared by the Joint Standards Australia / Standards New ZealandCommittee CE/33, Road Safety Barrier Systems.The objective of this Standard i

10、s to provide users with (a)issues that have to be addressed when specifying the installation of these devices;(b)erection and maintenance practices necessary to achieve an acceptable level of performance;(c)the process necessary to assess the nature of repairs to a road safety barrier system, or to

11、a crash attenuator system following a crash; and(d)methods to test road safety barrier and crash attenuator systems.This Standard also provides details of non-patented road safety barrier systems that are deemed to comply with this Standard.This Standard describes a means of evaluating road safety b

12、arrier systems, based on the best practices identified by the Committee. The National Cooperative Highway Research Program (NCHRP) of the United States Report Number 350 has been adopted as the basis of testing. This Standard is to be read in conjunction with NCHRP Report 350. Reference to CEN Stand

13、ards is made in NCHRP 350. The Committee notes that the provisions are rudimentary and steps are being taken which may lead to a mutual recognition of tests in future NCHRP and CEN documents.Statements expressed in mandatory terms in notes to tables are deemed to be requirements of this Standard.The

14、 terms normative and informative have been used in this Standard to define the application of the appendix to which they apply. A normative appendix is an integral part of a Standard, whereas an informative appendix is only for information and guidance. CopyrightSTANDARDS AUSTRALIA / STANDARDS NEW Z

15、EALANDUsers of Standards are reminded that copyright subsists in all Standards Australia and Standards New Zealand publications and software. Except where the Copyright Act allows and except where provided for below no publications or software produced by Standards Australia or Standards New Zealand

16、 may be reproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing from Standards Australia or Standards New Zealand. Permission may be conditional on an appropriate royalty payment. Australian requests for permission and information on comme

17、rcial software royalties should be directed to the head office of Standards Australia. New Zealand requests should be directed to Standards New Zealand.Up to 10 percent of the technical content pages of a Standard may be copied for use exclusively in-house by purchasers of theStandard without paymen

18、t of a royalty or advice to Standards Australia or Standards New Zealand.Inclusion of copyright material in computer software programs is also permitted without royalty payment provided such programs are used exclusively in-house by the creators of the programs.Care should be taken to ensure that ma

19、terial used is from the current edition of the Standard and that it is updated whenever the Standard is amended or revised. The number and date of the Standard should therefore be clearly identified.The use of material in print form or in computer software programs to be used commercially, with or w

20、ithout payment, or in commercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia or Standards New Zealand at any time.CONTENTSPageFOREWORD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5SECTION 1

21、 SCOPE AND GENERAL1.1SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.2APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.3REFERENCED DOCUMENTS . . . . . . . . . . . . . . . . . . . . . . . .

22、. . . . . . . . 71.4DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.5NOTATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121.6GENERAL REQUIREMENTS FOR ROAD BARRIER SAFETY SYSTEMS131.7USE OF OTHER MAT

23、ERIALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13SECTION 2 ROAD SAFETY BARRIER SYSTEMS AND CRASH ATTENUATORS2.1SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142.2GENERAL . . . . . . . . . . . . . . . . . . . . . . . .

24、. . . . . . . . . . . . . . . . . . . . . . 142.3DESIGN AND DOCUMENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152.4SUPPLY AND ERECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192.5MAINTENANCE AND DISMANTLING . . . . . . . . . . . . . . . . . . . . .

25、. . . . 262.6POST-CRASH ASSESSMENT AND REPAIR . . . . . . . . . . . . . . . . . . . . . . 27SECTION 3 RIGID ROAD SAFETY BARRIER SYSTEMS3.1SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283.2GENERAL . . . . . . . . . . . . . . . . . . . . . . .

26、 . . . . . . . . . . . . . . . . . . . . . . . 283.3DEVELOPMENT OF DESIGN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283.4ANALYSIS OF STRESSES IN RIGID ROAD SAFETYBARRIER SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293.5OTHER RESULTS . .

27、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293.6RIGID ROAD SAFETY BARRIER PROFILE . . . . . . . . . . . . . . . . . . . . . . 303.7FOUNDATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.8COMBINATIONS OF RIGID ROAD SAFE

28、TY BARRIER SYSTEMAND RAIL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.9PROXIMITY OF KERBS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323.10PROVISION FOR PEDAL CYCLISTS AND PEDESTRIANS. . . . . . . . . . 323.11TERMINALS AND INT

29、ERFACE DETAILS . . . . . . . . . . . . . . . . . . . . . . . 323.12RIGID ROAD SAFETY BARRIER SYSTEMS IN PUBLIC DOMAIN. . . . 324.1SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424.2DESIGN OF NON-RIGID ROAD SAFETY BARRIER SYSTEMS . . . . . . .

30、 424.3INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424.4DEVELOPMENT OF NON-RIGID ROAD SAFETY BARRIER SYSTEMS .424.5PUBLIC DOMAIN NON-RIGID ROAD SAFETY BARRIER SYSTEMS. .44SECTION 4 NON-RIGID ROAD SAFETY BARRIERSThe Standard is downloaded from HYPER

31、LINK HYPERLINK / Standard SharingPageSECTION 5 TESTING5.1SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495.2GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495.3MODIFICATIONS TO NCHRP 350 .

32、. . . . . . . . . . . . . . . . . . . . . . . . . . . . 49APPENDICESABACKGROUND INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53BCOMMENTARY ON SECTION 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55CCOMMENTARY ON SECTION 3 . . . . . . . . . . . . . . . .

33、. . . . . . . . . . . . . . .69DCOMMENTARY ON SECTION 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74ECOMMENTARY ON SECTION 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79FDETAILS OF ROAD SAFETY BARRIER LAYOUT . . . . . . . . . . . . . . . . . .80FOREWORDThe inten

34、t of this Standard is to provide a framework that unites the many parties involved in the provision of road safety barrier systems and crash attenuators, so that the completed installations provide acceptable performance to the community of road users over the length of time the barrier systems are

35、expected to operate.The function of these devices is to improve road safety by reducing the consequences of crashes. However, it should be recognized that these devices are themselves a hazard; they have the potential to cause serious injuries. The intention of this Standard is that these devices ar

36、e only installed at locations where the risk with the device installed is significantly less than the risk without the device.The duty of care to be exercised is emphasized. The community of road users includes people in a variety of vehicles which vary in size, mass and methods of propulsion. What

37、should be noted is that the users of these vehicles have different levels of protection, especially pedal cyclists and motorcyclists. The community of road users also includes pedestrians and those involved in the various construction, operational and maintenance activities that occur within the roa

38、d reserve. At some sites, the community of road users should be extended to include those whose activities require them to abut the road reserve.The Standard is downloaded from HYPERLINK HYPERLINK / Standard SharingSTANDARDS AUSTRALIA / STANDARDS NEW ZEALANDAustralian / New Zealand StandardRoad safe

39、ty barrier systemsS E C T I O N1S C O P EA N DG E N E R A L1.1SCOPEThis Standard sets out the requirements for roadside devices that provide some degree of redirection and containment capability when impacted by a vehicle, or provide controlled absorption of the kinetic energy of a vehicle that is o

40、n a collision course with some significant obstacle.This Standard includes the following:(a)Methods and data to test road safety barrier and crash cushion systems. (b)Issues to be addressed in specifying these devices.(c)Erection and maintenance practices necessary to achieve acceptable performance.

41、(d)Steps to evaluate the nature of repairs necessary for road safety barrier systems following a crash.The Standard also provides details of non-patented road safety barriers that are deemed to comply with this Standard.Where the terms vehicle or impacting vehicles are referred to in this Standard f

42、or the consideration of effects on or by a road safety barrier system, these terms include the following:(i)Motorized vehicles, such as cars, trucks and motorcycles.(ii)Non-motorized vehicles, such as pedal cycles and horse-drawn vehicles.(iii)Operators, drivers and riders of vehicles specified in I

43、tems (i) and (ii) whether attached or unattached to their vehicle.(iv)Any other road users, considered appropriate to the conditions being assessed. This Standard is to be read in conjunction with NCHRP Report Number 350.NOTE: For commentary on this Section, see Appendix A.1.2APPLICATIONThis Standar

44、d applies to both permanent road safety barrier systems and road safety barrier systems designed to be readily erected and dismantled. It also applies to devices meant for the applications given in Table 1.2.This Standard does not apply to the following:(a)Road safety barrier systems erected for spe

45、cial purposes, such as motor racing, or where special permit vehicles are the design focus.(b)Where individual elements of a road safety barrier system are used for special purposes, such as protection of gas tanks and delineation of car parks.(c)Pedestrian fences.(d)Truck-mounted attenuators (TMAs)

46、.(e)The comparative performance of road safety barrier systems or the preferred type of road safety barrier system to be installed.(f)Procedures to locate a road safety barrier system, either longitudinally or transversely, or with related issues considered in positioning of road safety barriers, su

47、ch as sight distance, drainage, aesthetics, cost and environmental matters.A fundamental requirement in the application of this Standard shall be the use of risk management techniques. These techniques shall be used to evaluate the hazards and the associated risks to the community of road users. Whe

48、re appropriate, the neighbours to a road shall be included in the analysis. The outcome sought shall be a balanced decision that considers the probable benefits, the resources available and the competing investment opportunities.TABLE1.2TYPICAL APPLICATIONSInstallation typeTypical applicationsManoeu

49、vre speed(0 to 15 km/h)Low speed(15 to 60 km/h)Arterial, sub-arterial and collector roadsPermanent road safety barriersCar parks and sites with features requiring protection from incidental impactLocal streets, campuses and roads with restricted design standardsArterial, sub-arterial and collector r

50、oadsTemporary road safety barriers (devices designed to be erected and dismantled quickly)Work sites in car parksWork sites on local streets with infrequent movements of vehicles larger than 2000 kgWork sites on arterial, sub-arterial and collector roadsCrash attenuatorsNot appropriateGore areas and

51、 approaches to toll boothsGore areas and approaches to toll booths1.3REFERENCED DOCUMENTSThe following documents are referred to in thisStandard:AS1163Structural steel hollow sections1214Hot-dip galvanized coatings on threaded fasteners (ISO metric coarse thread series)1302Steel reinforcing bars for

52、 concrete1303Steel reinforcing wire for concrete1304Welded wire reinforcing fabric for concrete1348Road and traffic engineering Glossary of terms1348.1Part 1: Road design and construction1379Specification and supply of concrete1604Timber Preservative-treated Sawn and round1627Metal finishing Prepara

53、tion and pretreatment of surfaces1627.5Part 5: Pickling, descaling and oxide removal1650Hot-dipped galvanized coatings on ferrous articles1742Manual of uniform traffic control devices1742.3Part 3: Traffic control devices for works on roads3569Steel wire ropes3610Formwork for concreteThe Standard is

54、downloaded from HYPERLINK HYPERLINK / Standard SharingAS/NZS1111ISO metric hexagon commercial bolts and screws1112ISO metric hexagon nuts, including thin nuts, slotted nuts and castle nuts1252High strength steel bolts with associated nuts and washers for structural engineering1554Structural steel we

55、lding1554.1Part 1: Welding of steel structures1554.5Part 5: Welding of steel structures subject to high levels of fatigue loading1594Hot-rolled steel flat products1595Cold-rolled, unalloyed, steel sheet and strip3678Structural steel Hot-rolled plates, floorplates and slabs3679Structural steel3679.1P

56、art 1: Hot-rolled bars and sections3750Paints for steel structures3750.9Part 9: Organic zinc-rich primer4360Risk managementBS4483Specification for steel fabric for the reinforcement of concreteNZS3112Methods of test for concrete3114Specification for concrete surface finishes3402Steel bars for the re

57、inforcement of concrete3421Specification for hard drawn mild steel wire for concrete reinforcementTRANSIT NZ, Bridge Manual, Transit New Zealand, Wellington 1994.TheNationalCooperativeHighwayResearchProgram(NCHRP)Report 350,Recommended Procedures for the Safety Performance Evaluation of Highway Feat

58、ures (NCHRP 350), Ross, Sicking, Zimmer and Michie, Washington DC, 1993.1.4DEFINITIONSFor the purpose of this Standard, the definitions in AS 1348 and those below, shall apply.1.4.1Agency the organization responsible for managing that part of the road network where a safety barrier or crash attenuat

59、or is proposed.1.4.2Anchor bracket a bracket used to anchor the cable assembly to the end rail of the modified eccentric loader terminal (MELT) and trailing terminal (TT).1.4.3Average recurrence interval (ARI) a measure of the probability associated with a given flood event.1.4.4Bearing plate a plat

60、e to anchor the cable assembly at the first post of the MELTterminal.1.4.5Blockout used to offset the beam from the post.1.4.6Buffered end section the curved section used to terminate the modified eccentric loader terminal (MELT) and trailing terminal (TT).1.4.7Cable assembly used to anchor the term