1、AN AM E R IC A N NAT IO NAL STANDARDASME B30.4-2020(Revision of ASME B30.4-2015)Portal andPedestal CranesSafety Standard for Cableways,Cranes,Derricks,Hoists,Hooks,Jacks,and SlingsASME B30.4-2020(Revision of ASME B30.4-2015)Portal andPedestal CranesSafety Standard for Cableways,Cranes,Derricks,Hoist
2、s,Hooks,Jacks,and SlingsAN AMERICAN NATIONAL STANDARDxDate of Issuance:October 20,2020ThenexteditionofthisStandardisscheduledforpublicationin2025.ThisStandardwillbecomeeffective1yearaftertheDateofIssuance.ASME issues written replies to inquiries concerning interpretations of technical aspects of thi
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11、CIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword.vCommittee Roster.viiB30 Standard Introduction.ixSummary of Changes.xiiChapter 4-0Scope,Definitions,Personnel Competence,Translations,and References.1Section 4-0.1Scope of B30.4.1Section 4-0.2Definitions.1Section 4-0.3
12、Personnel Competence.2Section 4-0.4Translations.2Section 4-0.5References.5Chapter 4-1Erection,Characteristics,and Construction.6Section 4-1.1Site Preparation and Erection.6Section 4-1.2Structural Design and Construction.6Section 4-1.3Load Ratings and Stability.7Section 4-1.4Documentation.8Section 4-
13、1.5Hoisting Equipment.9Section 4-1.6Luffing Equipment.9Section 4-1.7Swing(Slewing)Mechanism.10Section 4-1.8Travel Equipment.10Section 4-1.9Brakes,General Requirements.10Section 4-1.10Lifting Magnets and Below-the-Hook Lifting Devices.10Section 4-1.11Operational Aids.10Section 4-1.12Boom and Jib Supp
14、ort Ropes.11Section 4-1.13Reeving Accessories.11Section 4-1.14Counterweights.11Section 4-1.15Controls.11Section 4-1.16Electrical Equipment.12Section 4-1.17Operators Cab.12Section 4-1.18General Requirements.12Chapter 4-2Inspection,Testing,and Maintenance.14Section 4-2.1Inspection.14Section 4-2.2Opera
15、tional Aids.15Section 4-2.3Testing.15Section 4-2.4Maintenance.16Section 4-2.5Rope Inspection,Replacement,and Maintenance.17Chapter 4-3Operation.18Section 4-3.1Qualifications and Responsibilities.18Section 4-3.2Operating Practices.21iiiSection 4-3.3Signals.23Section 4-3.4Miscellaneous.25Figures4-0.2.
16、1-1Pedestal Crane With Luffing Boom.34-0.2.1-2Portal Crane With Level Luffing Boom.34-0.2.1-3Portal Crane With Luffing Boom.44-3.3.4-1Standard Hand Signals for Controlling Portal and Pedestal Cranes.24ivFOREWORDThisAmericanNationalStandard,SafetyStandardforCableways,Cranes,Derricks,Hoists,Hooks,Jacks,andSlings,hasbeendevelopedundertheproceduresaccreditedbytheAmericanNationalStandardsInstitute(ANSI).ThisStandardhadits beginning in December 1916,when an eight-page“Code of Safety Standards for Cran