1、ANSI/ASSE A10.28-2011ANSI/ASSE A10.28-2011ANSI/ASSE A10.28-2011Safety Requirements forWork Platforms Suspendedfrom Cranes or DerricksAmerican National Standardfor Construction and Demolition Operations AMERICAN SOCIETY OFSAFETY ENGINEERSAMERICAN NATIONAL STANDARDASSEThe information and materials con
2、tained in this publication have been developed from sources believed to be reliable. However, the American Society of Safety Engineers (ASSE) as secretariat of the ANSI accredited A10 Committee or individual committee members accept no legal responsibility for the correctness or completeness of this
3、 material or its application to specific factual situations. By publication of this standard, ASSE or the A10 Committee does not ensure that adherence to these recommendations will protect the safety or health of any persons, or preserve property. ANSI ANSI/ASSE A10.28 2011 American National Standar
4、d Construction and Demolition Operations Safety Requirements for Work Platforms Suspended from Cranes or Derricks Secretariat American Society of Safety Engineers 1800 East Oakton Street Des Plaines, Illinois 60018-2187 Approved January 28, 2011 American National Standards Institute, Inc. Approval o
5、f an American National Standard requires verification by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has be
6、en reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. The use of American Nati
7、onal Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he/she has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standards I
8、nstitute does not develop standards and will in no circumstance give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. Reques
9、ts for interpretation should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. Caution Notice: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute requires that action be
10、taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Published February 2011 by American Society of Safety Engineers 1800 East Oak
11、ton Street Des Plaines, Illinois 60018-2187 (847) 699-2929 www.asse.org Copyright 2011 by American Society of Safety Engineers All Rights Reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the p
12、ublisher. Printed in the United States of America American National Standard Foreword (This Foreword is not a part of American National Standard A10.28-2011). This standard is one of a series of safety standards that have been formulated by the Accredited Standards Committee on Safety in Constructio
13、n and Demolition Operations, A10. It is expected that the standards in the A10 series will find a major application in industry, serving as a guide to contractors, labor, and equipment manufacturers. For the convenience of users, a list of existing and proposed standards in the A10 series for Safety
14、 Requirements in Construction and Demolition Operations follows. A10.1 Pre-Planning for Construction Safety and Health (under development) A10.2 Safety, Health, and Environmental Training (under development) A10.3 Powder-Actuated Fastening Systems A10.4 Personnel Hoists and Employee Elevators A10.5
15、Material Hoists A10.6 Demolition Operations A10.7 Transportation, Storage, Handling, and Use of Commercial Explosives and Blasting Agents A10.8 Scaffolding A10.9 Concrete and Masonry Construction A10.10 Temporary and Portable Space Heating Devices A10.11 Personnel and Debris Nets A10.12 Excavation A
16、10.13 Steel Erection A10.15 Dredging A10.16 Tunnels, Shafts, and Caissons A10.17 Safe Operating Practices for Hot Mix Asphalt (HMA) Construction A10.18 Temporary Roof and Floor Holes, Wall Openings, Stairways, and Other Unprotected Edges A10.19 Pile Installation and Extraction Operations A10.20 Cera
17、mic Tile, Terrazzo, and Marble Work A10.21 Safe Construction and Demolition of Wind Generation/Turbine Facilities (under development) A10.22 Rope-Guided and Non-Guided Workers Hoists A10.23 Safety Requirements for the Installation of Drilled Shafts (under development) A10.24 Roofing Safety Requireme
18、nts for Low-Sloped Roofs A10.25 Sanitation in Construction A10.26 Emergency Procedures for Construction Sites (under development) A10.27 Hot Mix Asphalt Facilities A10.28 Work Platforms Suspended from Cranes or Derricks A10.29 Aerial Platforms in Construction (under development) A10.31 Digger-Derric
19、ks A10.32 Personal Fall Protection Used in Construction and Demolition Operations A10.33 Safety and Health Program Requirements for Multi-Employer Projects A10.34 Public Protection A10.37 Debris Nets A10.38 Basic Elements of a Program to Provide a Safe and Healthful Work Environment A10.39 Construct
20、ion Safety and Health Audit Program A10.40 Reduction of Musculoskeletal Problems in Construction A10.41 Equipment Operator and Supervisor Qualifications and Responsibilities (under development) A10.42 Rigging Qualifications and Responsibilities in the Construction Industry A10.43 Confined Spaces in
21、Construction (under development) A10.44 Lockout/Tagout in Construction A10.46 Hearing Loss Prevention A10.47 Highway Construction Safety A10.48 Communication Tower Erection (under development) A10.49 Control of Health Hazards (under development) One purpose of these standards is to serve as guides t
22、o governmental authorities having jurisdiction over subjects within the scope of the A10 Committee standards. If these standards are adopted for governmental use, the reference of other national codes or standards in individual volumes may be changed to refer to the corresponding regulations. Revisi
23、ons: The A10 Committee welcomes proposals for revisions to this standard. Revisions are made to the standard periodically (usually five years from the date of the standard) to incorporate changes that appear necessary or desirable, as demonstrated by experience gained from the application of the sta
24、ndard. Proposals should be as specific as possible, citing the relevant section number(s), the proposed wording, and the reason for the proposal. Pertinent documentation would enable the A10 Committee to process the changes in a more timely manner. Interpretations: Upon a request in writing to the S
25、ecretariat, the A10 Committee will render an interpretation of any requirement of the standard. The request for interpretation should be clear, citing the relevant section number(s) and phrased as a request for a clarification of a specific requirement. Oral interpretations are not provided. No one
26、but the A10 Committee (through the A10 Secretariat) is authorized to provide any interpretation of this standard. Approval: Neither the A10 Committee nor American National Standards Institute (ANSI) “approves,“ “certifies,“ “rates,“ or “endorses“ any item, construction, proprietary device, or activi
27、ty. Appendices: Appendices are included in most standards to provide the user with additional information related to the subject of the standard. Appendices are not part of the approved standard. Committee Meetings: The A10 Committee meets twice a year. Persons wishing to attend a meeting should con
28、tact the Secretariat for information. Standard Approval: This standard was processed and approved for submittal to ANSI by the American National Standards Committee on Safety in Construction and Demolition Operations, A10. Approval of the standard does not necessarily imply (nor is it required) that
29、 all Committee members voted for its approval. At the time this standard was approved, the A10 Committee had the following members: Richard King, CSP, Chairman James Tomaseski, Vice Chairman Timothy R. Fisher, CSP, CHMM, ARM, CPEA, Secretary Jennie Dalesandro, Administrative Technical Support Organi
30、zation Represented Name of Representative Accident Prevention Corporation Frank Burg, CSP Michael Serpe, CSP Aegis Corporation Matthew J. Burkart, P.E. Judith Burkart Alstom Power Robert Renney Ted P. Sharp American Insurance Services Group Thad Nosal James G. Borchardt, CSP, CPE American Work Platf
31、orm Training, Inc. Dennis W. Eckstine ASCE - Construction Institute Committee Harlan Fair, P.E. William R. Nash, P.E. American Society of Safety Engineers Ken Shorter, CSP, ARM A. David Brayton, CSP, CPC American Wind Energy Association Michele Myers Asbestos Workers International Union Terry Lynch
32、Jim E. Lapping, MS, P.E., CSP Associated Builders and Contractors, Inc. Michael W. Hayslip, Esq., P.E., CSP Chris WilliamAssociated General Contractors of America, The Charlie Bird Kevin CannonAssociation of Union Constructors, The William Treharne, P.E. Jeffrey Hardison A-Z Safety Resources, Inc. J
33、ane F. Williams, CPEA, CCA Barton-Malow Company Mark Klimbal, CSP, ARM Clayton Shafer Black 2) a toeboard at least 4 inches (10.2cm) high nominal; and 3) a midrail approximately halfway between the top rail and the floor. The area from the floor to the midrail shall be enclosed by the use of solid c
34、onstruction, expanded metal, or metal mesh with openings no greater than one-half inch. Top rail shall be able to withstand a 200 lb. (90.7kg) load applied in the downward or outward direction. Midrail shall be able to withstand a 150 lb. (68kg) load applied in the downward or outward direction. Toe
35、board shall be able to withstand a 50 lb. (22.7kg) load applied in the downward or outward direction. 5.7 Fall Protection. Provisions shall be made for anchoring fall protection equipment, such as lanyards from a height as high or higher than the dorsal D-ring to limit free fall distance. 5.8 Grab R
36、ail. A recessed grab rail shall be provided all the way around the inside of the suspended work platform to minimize hand exposure to minimize exposure to surfaces or obstructions that could contact the outside of the platform. 5.9 Stability. The suspension system shall minimize tipping of the platf
37、orm due to movement of the personnel using the platform. Movement in any direction shall be limited to keep the platform from swinging. Hoisting of personnel on the platform shall be performed in a slow, controlled, cautious manner with no sudden movements of the crane, derrick, or platform. 5.10 Ac
38、cess Height. A head clearance of 7 feet (2.1m) shall be provided from the platform floor when the platform is equipped with a canopy. 6. SUSPENDED WORK PLATFORM CONSTRUCTION 6.1 Edges. All edges shall be smooth. 6.2 Weld Inspection. All welds shall meet American Welding Society/ manufacturers standa
39、rds/weld detail and shall be inspected visually by a qualified person. 6.3 Welding Competence. All welding on work platforms shall be performed by a certified welder. 6.4 Attachment Points. Suspended platforms shall have four attachment points. 7. SUSPENDED WORK PLATFORM TESTING AND INSPECTION 7.1 F
40、requency of Inspection. The platform and rigging shall be at a minimum inspected daily by a competent person prior to being used. 7.2 Proof Testing. At each new set-up location, prior to hoisting employees in the suspended work platform, the platform and rigging shall be proof-tested to 150 percent
41、of the platforms rated capacity. This shall be done by holding it in a suspended position for five minutes with the AMERICAN NATIONAL STANDARD A10.28-2011 15 test load equally distributed on the platform. After proof testing any deficiencies revealed during an inspection by the qualified person shal
42、l be corrected and another proof test shall be conducted. A dated, signed copy of the proof test shall be maintained at the jobsite. 7.3 Trial Run. Immediately prior to placing personnel in the platform, a trial run shall be made by the operator with the suspended platform from the ground to all pro
43、posed work elevations to ascertain that: 1) the boom configuration and load lines are adequate; 2) no interferences exist; and 3) there is adequate clearance from power lines. For every location where the platform is to be used, a trial run with test load shall be performed. 8. SUSPENDED WORK PLATFO
44、RM LOADING 8.1 Distribution of Loads. Materials or equipment on an occupied suspended platform shall be suitably secured and evenly distributed while the platform is being moved. 8.2 Limitations. Suspended platforms shall be used only for personnel, their tools, and materials in an amount sufficient
45、 to perform the work. They shall not be used to transport bulk materials. The trial lift shall ensure at a minimum that the boom configuration and load lines are adequate and that no interferences exist. 9. RIGGING 9.1 Use. Rigging equipment used for the personnel hoist cannot be used for any other
46、purpose. 9.2 Attachment. The suspended platform rigging shall be attached to a block or hook and not directly to the load line. The rigging shall be attached at four points on the platform during lifting operations. 9.3 Capacity. Load lines shall be capable of supporting without failure at least sev
47、en times the maximum intended load, except where rotation-resistant rope is used the lines shall be capable of supporting without failure at least ten times the maximum intended load. 9.4 Positive Connection. The plat-form suspension shall be positively locked to the load block or hook in a manner t
48、hat shall prevent accidental disengagement. 10. PERSONAL PROTECTIVE EQUIPMENT 10.1 General. All employees shall use personal protective equipment of a type appropriate to the work being performed. 10.2 Personal Fall Arrest Equipment. Full body harnesses shall be used and the lanyard shall be secured
49、 to a suitable anchorage capable of supporting 5,000 lbs. (2,268kg) or twice the intended load. 11. SIGNALING AND COMMUNI-CATIONS 11.1 Positioning. When employees are in a suspended work platform, the platform shall remain in continuous sight of the crane or derrick operator or signal person. If the signal person is not on the work platform, the signal person shall position him or herself to be in constant view of the work platform and shall be in voice communication with the operator. If line-of-sight is lost between the operator and the signal person operations shall cease
