ANSI American Society of Safety Engineers A1264.1-2017 Safety Requirements for Workplace Walking Working Surfaces and Their Access Workplace Floor Wall and Roof Openings Stairs and.pdf

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1、AmericAn nAtionAl StAndArdANSI/ASSE A1264.1 2017Safety Requirements for Workplace Walking/Working Surfaces and Their Access; Workplace, Floor, Wall and Roof Openings; Stairs and Guardrail/Handrail SystemsAmericAn Society of SAfety engineerS4Casselogo-1200dpi_vector-1c-outline.pdf 1 1/20/2012 1:31:55

2、 PMANSI/ASSE A1264.1 2017ANSI/ASSE A1264.1 2017The information and materials contained 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 A1264 Committee or individual committee

3、members accept no legal responsibility for the correctness or completeness of this material or its application to specific factual situations. By publication of this standard, ASSE or the A1264 Committee does not ensure that adherence to these recommendations will protect the safety or health of any

4、 persons, or preserve property. ANSI ANSI/ASSE A1264.1 2017 American National Standard Safety Requirements for Workplace Walking/Working Surfaces and Their Access; Workplace, Floor, Wall and Roof Openings; Stairs and Guardrail/Handrail Systems Secretariat American Society of Safety Engineers 520 N.

5、Northwest Highway Park Ridge, Illinois 60068 Approved January 9, 2017 American National Standards Institute, Inc. Approval of 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 d

6、eveloper. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that a

7、ll views and objections be considered, and that a concerted effort be made toward their resolution. The use of American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether they have approved the standards or not, from manufacturing, marketing,

8、 purchasing or using products, processes or procedures not conforming to the standards. The American National Standards Institute 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

9、issue an interpretation of an American National Standard in the name of the American National Standards Institute. Requests 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

10、be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be 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

11、the American National Standards Institute. Published February 2017 by: American Society of Safety Engineers 520 N. Northwest Highway Park Ridge, Illinois 60068 (847) 699-2929 www.asse.org Copyright 2017 by American Society of Safety Engineers All Rights Reserved. No part of this publication may be r

12、eproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. Printed in the United States of America American National Standard Foreword (This Foreword is not a part of American National Standard A1264.1 2017.) This standard was develo

13、ped by an American National Standards Committee, national in scope, functioning under the procedures of the American National Standards Institute with the American Society of Safety Engineers (ASSE) as secretariat. This standard establishes minimum safety requirements for workplace floor and wall op

14、enings, stairs and railing systems. It is intended that the procedures and performance requirements detailed herein will be adopted by every employer whose operations fall within the scope and purpose of the standard. Neither the standards committee, nor the secretariat feel that this standard is pe

15、rfect or in its ultimate form. It is recognized that new developments are to be expected, and that revisions of the standard will be necessary as the art progresses and further experience is gained. It is felt, however, that uniform requirements are very much needed and that the standard in its pres

16、ent form provides for the minimum performance requirements necessary for the protection of personnel regarding workplace floor and wall openings, stairs and railing systems. In addition to technical improvements, this revision contains two new definitions and four new illustrations to help clarify t

17、ext in the standard. Suggestions for improvements of this standard will be welcome. They should be sent to the American Society of Safety Engineers, 520 N. Northwest Highway, Park Ridge, Illinois 60068. This standard was processed and approved for submittal to ANSI by the American National Standards

18、 Committee A1264. Committee approval of the standard does not necessarily imply that all committee members voted for its approval. At the time ANSI approved this standard, the A1264 Committee had the following members: Keith Vidal, P.E., Chair Lawrence E. Oldendorf, P.E., Vice Chair Ovidiu Munteanu,

19、 Secretary Timothy R. Fisher, CSP, CHMM, ARM, CPEA, Assistant Secretary Jennie Dalesandro, Administrative Technical Support Organization Represented Name of Representative American Society of Safety Engineers Lawrence E. Oldendorf, P.E. Timothy Healey Arthur J. Gallagher Risk Management Services Jam

20、es D. Smith, CSP C. Gary Lopez, CSP Bay Nets Safety Systems Robert Martin Cotterman Company Pete Catlos Donald Gibson, Jr. Covestro LLC Terry L. Ketchum Dean Foods Larry Cuomo Dynamic Scientific Controls J. Nigel Ellis, Ph.D., P.E., CSP, CPE ESIS Health, Safety WORKPLACE, FLOOR, WALL AND ROOF OPENIN

21、GS; STAIRS AND GUARDRAIL/HANDRAIL SYSTEMS STANDARD REQUIREMENTS EXPLANATORY INFORMATION (Not part of American National Standard A1264.1) 1. SCOPE, PURPOSE AND APPLI-CATION 1.1 Scope. This standard sets forth safety requirements in industrial and workplace situations for protecting persons in areas/p

22、laces where danger exists of persons or objects falling from elevated walking and work surfaces such as floor, roof or wall openings, platforms, runways, ramps, fixed stairs or roofs in normal, temporary and emergency conditions. E1.1 The scope of this document has application to more than industria

23、l settings. It applies also to workplace settings used and occupied mainly by workers. For example, the document applies to stage areas in theaters as used by stage hands and performers (i.e., workers). 1.1.1 Excluded from this standard are: private residences; escalators; moving walks; floor openin

24、gs occupied by elevators, manlifts, dumbwaiters, conveyors, machin-ery, containers; the loading and unloading areas of truck, railroad and marine docks; self-propelled motorized mobile equipment; mobile ladder stands and mobile work platforms; scaffolds used in the construction, alteration, demoliti

25、on and maintenance of buildings and structures; ladders and construction work areas; and marina and floating tank ladders. E1.1.1 Recognizing that the special safety requirements necessary for assembly occu-pancies may not be adequately covered by other codes or standards, this standard may provide

26、the minimum safety performance requirements to protect the occupants. See ANSI/ASSE A10.18, Safety Requirements for Temporary Floors, Holes, Wall Openings, Stairways and Other Unprotected Edges in Construction and Demolition Operations. 1.2 Purpose. The purpose of this standard is to establish minim

27、um safety requirements for working and walking areas to provide reasonable safety of persons pursuing their foreseeable duties. 1.3 Application. 1.3.1 The requirements of this standard apply to new and existing installations and workplace exposures to fall hazards. E1.3.1 The requirements of this st

28、andard can be effectively applied during alterations of existing facilities or when major changes are made to work areas. 1.3.2 Construction and installation of all AMERICAN NATIONAL STANDARD A1264.1 2017 9 walking and work surfaces, guardrail systems and all other protective measures shall be of ma

29、terials and methods suitable for the environment of intended use. 1.3.3 Falls which may cause injury can occur from any height. Employers shall complete a fall hazard assessment of all walking and work surfaces in order to determine the guarding necessary to prevent falls and injury. The requirement

30、s of this standard are minimum requirements and may not be sufficient for every installa-tion. See ANSI/ASSE Z359.2, Minimum Requirements for a Comprehensive Man-aged Fall Protection Program, for a fall protection hierarchy or preferred order of control to eliminate or control fall hazards when desi

31、gning fall protection solutions for both existing and new facilities. 1.3.4 Hazardous Location. Regardless of height, walking and work surfaces above or adjacent to dangerous equipment, open tanks and similar hazards, shall be protected in accordance with applicable standards to prevent falls into t

32、he hazard. See ANSI/ASSE Z359.2, Minimum Require-ments for a Comprehensive Managed Fall Protection Program. E1.3.4 For more information about fall protection please review ANSI/ASSE Z359.1, Safety Requirements for Personal Fall Arrest Systems, Subsystems and Components. 1.3.5 Order of Precedence. Ap

33、plicable legal requirements (laws and governmental codes and regulations) supersede the requirements of this standard and shall be obeyed. Employers shall determine the applicable jurisdictional authorities and if application of this standard violates appli-cable legal requirements, then the violati

34、ng requirements of this standard shall be waived. 2. DEFINITIONS 2.1 Alternating Tread Device. Series of treads usually arranged at a much steeper pitch than permitted for stairs and attached to a center support in an alter-nating manner so that a user of the device normally does not have both feet

35、on the same level. E2.1 For more information on alter-nating tread devices please refer to NFPA LSC 101. AMERICAN NATIONAL STANDARD A1264.1 2017 10 2.2 Exposed Edge. The edge of a walking/working surface at which an immediate downward change in elevation occurs. 2.3 Flight. A series of stair risers,

36、 including a single stair riser, between landings. 2.4 Floor Hole/Opening. A void in a floor, resulting in a change in elevation, into which persons may trip or fall or into which objects in use may fall. E2.4 Skylights located in floors or roofs are considered floor or roof hole/openings. 2.5 Gate,

37、 Safety. A self-closing barrier to prevent unintended passage and falls through guardrail openings such as those necessary for the passage of persons or materials. (See Figures 2.5:A and 2.5:B.) E2.5 For more information refer to Figures 2.5:A and 2.5:B. Figure 2.5:A Figure 2.5:B 2.6 Guardrail Syste

38、m. A barrier or an arrangement of barriers located at or near the open edges of elevated walking and working surfaces that is intended to prevent falls from that surface (e.g., see Figure 2.6). E2.6 Vertical posts, or other guardrail system design(s) that incorporate barriers are acceptable for guar

39、drail systems. AMERICAN NATIONAL STANDARD A1264.1 2017 11 Figure 2.6 2.7 Handrail. A horizontal or sloping rail grasped by hand for guidance and support. E2.7 Handrails may also provide a visual cue of an impending change in elevation. 2.8 Landing. Platform between flights of stairs, or the walking/

40、working surface immediately before or after a stairway, such as platform, floor or roof. 2.9 Nosing. The leading edge of a tread or landing. E2.9 The nosing may or may not project beyond the riser, stringer or other supporting element. 2.10 Open Riser. A riser without a solid material barrier betwee

41、n the full width of the space between one tread and the adjacent tread(s). 2.11 Personal Fall Arrest (PFAS). A fall arrest system in accordance with ANSI/ASSE Z359.1, Safety Requirements for Personal Fall Arrest Systems, Sub-systems and Components. 2.12 Pit. A floor hole/opening within which is a wa

42、lking/working surface or which is intended for transfer of materials. 2.13 Platform. An elevated walking/ working surface including landings between flights of stairs. 2.14 Power Grip. Power grip in this standard refers to the graspability of a handrail - to encircle the handrail with the hand and f

43、ingers. Certain handrail cross sections and sizes influence ones ability to exert a grip that enables them to avert or lessen the likelihood of a fall in the event AMERICAN NATIONAL STANDARD A1264.1 2017 12 that handrail support is needed. (See NFPA 101, Life Safety Code, or local building code for

44、more information on appropriate and safe handrail designs.) 2.15 Rail. Horizontal or inclined member of a guardrail or handrail system. 2.16 Ramp. Any inclined walking/ working surface with a slope greater than 1:20 (5%) is considered a ramp. E2.16 Different environments may have different requireme

45、nts for maximum ramp slope. Refer to local building codes or ordinances. Additional information can be found in OSHA regulations and ANSI standards. 2.17 Rise. The vertical distance between the top of one tread or landing (platform) at the nosing to adjacent tread or landing at the nosing. 2.18 Rise

46、r. Vertical or inclined member occupying the rise of a step. 2.19 Roof Hole/Opening. A void in a roof, resulting in a change of elevation into which persons may fall or into which objects in use may fall. 2.20 Run. See Tread Depth. 2.21 Runway. Elevated walking/working surface such as a catwalk or w

47、alkway between buildings. 2.22 Shall. Denotes a mandatory item. 2.23 Should. Denotes an advisory item. 2.24 Ship Ladders. Typically a series of treads angled at between 50 and 70 degrees with open risers. 2.25 Slip Resistance1. The relative force that resists the tendency of the shoe or foot to slid

48、e along the walkway surface. Slip resistance is related to a combination of factors including the walkway surface, the footwear bottom, and the presence of E2.25 Slip resistance is dependent upon many factors such as: material and condition of the walkway surface; material and condition of the shoe

49、sole or heel material; the physical abilities of the user; the attempted or proposed activities of the 1 Reprinted, with permission, from ASTM F1646-13 Standard Terminology Relating to Safety and Traction for Footwear, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. AMERICAN NATIONAL STANDARD A1264.1 2017 13 foreign materials between them. user; and the presence of any contaminants on any or both of the surfaces, and other factors. 2.26 Slip Resistant1. The provision of adequate slip resistance to reduce the likelihood of sli