ANSI American Society of Safety Engineers A10.9-2013 Safety Requirements for Concrete and Masonry Work American National Standard for Construction and Demolition Operations.pdf

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1、Printed in U.S.A.ASSEAMERICAN SOCIETY OFSAFETY ENGINEERSAMERICAN NATIONAL STANDARDANSI/ASSE A10.9 2013ANSI/ASSE A10.9 2013 Safety Requirementsfor Concrete and Masonry WorkAmerican National Standardfor Construction and Demolition OperationsANSI/ASSE A10.9 2013The information and materials contained i

2、n 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 materia

3、l 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 A10.9 2013 American National Standard Constru

4、ction and Demolition Operations Safety Requirements for Concrete and Masonry Work Secretariat American Society of Safety Engineers 1800 East Oakton Street Des Plaines, Illinois 60018-2187 Approved February 28, 2013 American National Standards Institute, Inc. Approval of an American National Standard

5、 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 been reached by directly and mate

6、rially 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 National Standards is completely vo

7、luntary; 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 Institute does not develop stand

8、ards 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. Requests for interpretation should be

9、 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 require that action be taken periodically to reaffirm,

10、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 May, 2013 by American Society of Safety Engineers 1800 East Oakton Street Des Plaines, Illinois 600

11、18-2187 (847) 699-2929 www.asse.org Copyright 2013 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 publisher. Printed in the United Stat

12、es of America American National Standard Foreword (This Foreword is not a part of American National Standard A10.9-2013.) This standard is one of a series of safety standards that have been formulated by the Accredited Standards Committee on Safety in Construction and Demolition Operations, A10. It

13、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 Requirements in Construction and Demo

14、lition Operations follows. A10.1 Pre-Project Hose Whipping; Setting Outriggers to Avoid Accidents I may be adjustable. AMERICAN NATIONAL STANDARD A10.9-2013 14 3.14 Live Load. Any load, without load factors, that is not permanently applied to a structure. 3.15 Project Constructor. A person, firm or

15、corporation, i.e. the construction manager, general contractor, prime contractor or other entity as designated in the project documents, responsible for supervising and controlling all construction work performed on the project. 3.16 Qualified Person. A person who, by possession of a recognized degr

16、ee, certificate or professional standing or by extensive knowledge, training and experience, has demonstrated ability to solve or resolve problems relating to the subject matter of this standard. 3.17 Rated Capacity/Load. The maximum load that a piece of hoisting equipment is designed to carry. 3.18

17、 Reshore. The temporary vertical supporting members that are placed or left in place when the original support shores or posts for the formwork are removed. The reshores are used to support partially cured concrete and other construction loads. 3.19 Safe Work Practice(s). Detailed instructions, proc

18、edures or methods to be followed to safely perform a specific activity or task. 3.20 Service Load. Forces normally imposed on a member in service. 3.21 Shall. The word shall denotes a mandatory requirement. 3.22 Shores (Shoring). Temporary vertical support member in a formwork system, designed to ca

19、rry the weight of the formwork, concrete and construction loads. 3.23 Should. The word should denotes a recommendation. 3.24 Specific Project Safety Plan. A project-specific written plan approved by the project constructor that addresses potential safety and health hazards of the project through eac

20、h phase of construction. 3.25 Structural Concrete. Concrete used to carry structural load or to form an integral part of a structure. 3.26 Tendon. A metal element, usually of steel such as wire, stranded components (such as wires), bars or rods used in prestressing or post-tensioning concrete. 3.27

21、Ultimate Breaking Strength. The maximum load that may be placed on a structure or structural element before its failure (where the assembly or component can no longer support the load, also known as load refusal). 3.28 Vertical Slipform. A form that is raised as concrete is placed; moves vertically

22、to form walls, bins or slips. 4. SITE SAFETY 4.1 Fall Protection. 4.1.1 A fall prevention plan shall be required for all personnel exposed to fall hazards of 6 feet (1.82m) or more. 4.1.2 A fall protection plan shall be part of the pre-planning site and task analysis. 4.1.3 Guardrails, midrails and

23、toeboards shall be installed on open sides and ends of ramps, platforms, runways, or walkways 6 feet (1.82m) or more above the ground or lower floor levels. 4.1.4 Prior to the commencement of reinforcing steel and concrete operations, the project constructor shall ensure that guardrails, midrails an

24、d toeboards are installed at the exterior and interior of walkways and decks. AMERICAN NATIONAL STANDARD A10.9-2013 15 4.1.5 Prior to work, each person required to wear personal fall arrest equipment, restraint equipment, work positioning equipment and rescue equipment shall be trained in the use an

25、d limitations of such equipment. 4.2 Personal Protective Equipment. Personal protective equipment shall be provided by the employer and used by the employee. 4.3 Design and Drawings. 4.3.1 A registered professional engineer shall review, approve, date and sign all design, shoring, reshores and formw

26、ork drawings. 4.3.2 No field changes in the design shall be permitted without approval of the formwork designer/engineer. 4.3.3 Structural concrete, not on grade, and vertical walls shall require formwork drawings prepared by an engineer, a copy of which shall be available at the job site. 4.3.4 Exc

27、eption, for single-story residen-tial basement walls not exceeding 8 feet (2.4m). 4.4 Project Safety Plan. 4.4.1 All work covered by this standard shall be conducted in accordance with the project constructors safety plan. 4.4.2 The plan shall be approved by the project constructor prior to the star

28、t of work and address safety and health hazards of each phase of construction. 4.4.3 Only employees who have been trained in accordance with the plan will be permitted to work. 4.4.4 If hazards not covered in the plan are encountered, safe work practices approved by the project constructor shall be

29、developed to ensure safe working conditions. 4.4.5 The plan shall list all instances where an engineer or competent person is required to design, plan, supervise, test or perform inspections of materials, and the process and sequence of placing materials including structural members. 4.4.6 This plan

30、 shall include a description of the safety and health responsibilities of supervision such as but not limited to the project manager through individual craft supervisors, crew leaders, etc., including the competent persons. 4.4.7 Each contractor and subcontractor shall have a list of competent perso

31、ns for the area where the work is being performed. 4.4.8 Several responsibilities may be performed by the same individual provided they are a competent person(s) approved by the senior project supervisor for that contractor or subcontractor. 4.4.9 The plan shall describe the specific precautions to

32、be taken to ensure stability of structures during the construction process. 4.4.10 A competent person or persons capable of identifying the hazards related to activities addressed by this standard and who possess the knowledge, skills and abilities to monitor the implementation of the plan shall be

33、designated by each contractor. 4.4.11 A competent person(s) shall conduct field reviews to verify that the plan is being implemented as approved and that hazards have been identified and corrected. All deficiencies shall be recorded in the project log and brought to the attention of the project cons

34、tructor. Employees shall be removed from or otherwise protected from all uncorrected hazardous conditions. 4.4.12 The plan shall describe proce-dures to identify hazardous conditions and AMERICAN NATIONAL STANDARD A10.9-2013 16 the individuals who will be responsible for addressing them. 4.4.13 The

35、project constructor, design team and/or the specialty contractor shall consult to identify potential critical project elements or complex processes requiring planning, design, inspection and/or supervision by a professional engineer such as but not limited to erection activities, lifting schemes, co

36、mplicated formwork and shoring. 4.5 Housekeeping. Good house-keeping shall be maintained at all times. 4.6 Access. 4.6.1 The project constructor shall ensure that the reinforcing steel contractor and concrete contractor are provided with adequate access roads into and through the site for the safe d

37、elivery and movement of derricks, cranes, trucks other necessary equipment and the material to be erected and means and methods for pedestrian and vehicular control. Exception: This requirement does not apply to roads outside of the construction site. 4.6.2 The site access roads shall be marked, fir

38、m, able to support the anticipated loads and properly graded. 4.6.3 Exterior platforms for landing materials shall be provided by the project constructor or designated contractor and shall be designed to support the anticipated material loads. 4.6.4 These exterior platforms shall be designed to supp

39、ort the anticipated material loads. 4.6.5 These exterior platforms shall be provided with guardrails, and access points or designed fall arrest anchorage points shall be provided. 4.6.6 Access to the work area for dollies, hand trucks, forklift trucks, etc., including ramps and aisles shall be provi

40、ded, designed to support the anticipated loads and have a surface covering. 4.6.7 Safe access to work areas shall be included in the pre-planning for the site safety and health plan. 4.7 Excavations. Excavations shall be protected by shoring, benching or sloping prior to the start of reinforcing ope

41、rations. 4.8 Rigging. 4.8.1 A qualified rigger who is also a qualified person shall inspect the rigging prior to each lift. 4.8.2 All loads of reinforcing steel (bar), stirrups and other materials shall be rigged by a qualified rigger. 4.8.3 Prefabricated reinforced steel mats, cages, boxes, walls a

42、nd columns shall have rigging designed by an engineer. 4.8.4 Bundles of reinforcing bars shall not be hoisted/lifted by the wires, ties, wrappings or bands unless the shipper has verified that they have been designed for hoisting/lifting. 4.8.5 Bundles of reinforcing steel moved by crane or cable wa

43、y shall be tied together to prevent slipping out of slings or chokers. 4.8.6 Steel bundles over 20 feet (6.1m) in length shall be handled by spaced two-part slings, chokers or spreader bars. 4.8.7 Only approved lifting/rigging devices shall be used to handle reinforcing steel. 4.9 Related Site Hazar

44、ds. 4.9.1 Sanitary Facilities. AMERICAN NATIONAL STANDARD A10.9-2013 17 4.9.1.1 Eyewash facilities shall be provided. 4.9.1.2 Washing facilities to enable employees to remove materials and residues from concrete and cement work shall be provided. 4.9.1.3 The washing facilities shall use potable wate

45、r tempered to a temperature that is appropriate to allow effective washing. 4.9.1.4 Washing facilities shall be available within immediate location on the job site where work is being performed. 4.9.2 Health Hazards. 4.9.2.1 Cement containing more than 2 parts per million (ppm) of hexavalent chromiu

46、m (Cr(VI+) should not be used. 4.9.2.2 Cement additives such as stannous chloride may be used to reduce the (Cr(VI+) levels. 4.9.3 Pre-job planning for a hazard analysis of manual repetitive lifting/moving shall be conducted for activities such as manual lifting of bagged materials, concrete masonry

47、 units, positioning of formwork, etc. 4.9.4 Bagged materials should be obtained or divided such that these units weigh no more than 47 pounds (21.3kg) when a single person is moving/lifting these units. 4.9.5 Material data sheets shall be available for products such as the concrete mix, products add

48、ed to the concrete such as fibers, colorants, cold/hot weather chemicals, etc., form release substances and concrete finishing materials, etc. When other items are placed in the concrete mix such as radio frequency identification devices (RFID) or other electronic items such as nanotechnologies, the

49、 worker shall be informed of their properties and related cautions. 4.10 Training. Each employer shall ensure that each employee has been provided training and evaluation for the work and avoidance of hazards specific to the activities involved with and related to masonry, concrete placement, precast placement, reinforcing steel activities, post-tensioning, rigging, placement of shores and reshores, formwork and handling of chemicals such as cement, concrete and form-oils. 4.11 Machine Guarding, Lockout/ Tagout. 4.11.1 Belts, gears, shafts, pulleys, sprockets, spindles, drums, fl