This is the first edition of CSA A344, User guide for steel storage racks. It replaces CSA A344.1 published under the same title in 2005.
Following the withdrawal of CSA A344.2, and its subsequent incorporation into CSA S16, this Guide has been designed as a stand-alone document. The contents of this new Guide have been expanded from the contents of A344.1 and are linked with both CSA S16 and CSA B335.
This Guide, used in conjunction with CSA B335, establishes the requirements for a safe environment where steel storage racks and lift trucks are the primary equipment of the workplace. The typical workplaces affected by these documents are warehouses and distribution centers.
Significant changes from CSA A344.1 include:
a) extensive references to CSA S16;
b) addition of many illustrations and photos;
c) addition of example reporting forms;
d) addition of provisions for fasteners and bolts (Clause 6.5);
e) expansion of the clause on the use of racking systems (Clause 7);
f) expansion of the clause on the assessment of damage and deficiencies (Clause 8.2);
g) expansion of the clause on corrective actions (Clause 8.3);
h) addition of a new clause on modifications to racking systems (Clause 8.4); and
i) addition of provisions for the linking of the Guide to requirements in building codes and OHS legislation, and to structural reuirements in CSA S16 (Clause 9).
This Guide has been prepared by the Technical Subcommittee on Use of Steel Storage Racks, under the jurisdiction of the Technical Committee on Industrial Lift Trucks and the Strategic Steering Committee on Occupational Health and Safety, and has been formally approved by the Technical Committee.
Scope
1.1
This Guide applies primarily to selective pallet racks, although the principles set out in this Guide may be used when purchasing and using other types of racks, such as double-deep, push-back, drive-in and drive-through racks, cantilever racks, portable racks, rack-supported buildings, and stacker racks.
1.2
This Guide is limited to pallet racks made of steel that are typically constructed from cold-formed members and/or hot rolled structural sections.
1.3
This Guide is intended for persons who create specifications for, purchase, and use steel storage racks. In referencing this Guide, the users of steel storage racks will become aware of the considerations required to ensure that their rack installation meets the conditions of the work environment and user expectations.
1.4
This Guide does not apply to shelving.
1.5
This Guide is written in non-mandatory language. In this Guide, should is used to express a recommendation or that which is advised but not required, and may is used to express an option or that which is permissible within the limits of the Guide.
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This guide discusses the practical aspects of shell design, including recommendations for designers of thin concrete shells. General guidance based on current practice is given on analysis, proportioning, reinforcing, and construction. A selected bibliography on analytical methods, featuring design tables and aids, is included to assist the engineer.
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Fiber-reinforced concrete (FRC) has become a viable choice for many designers and builders for the unique properties and advantages it provides. From slabs-on-ground to underground structures, the use of FRC has been expanding in concrete construction. This growth of applications has created the need to review the existing test methods for FRC and, where necessary, develop new ones. Two reports (ACI 544.2R and ACI 544.9R) have already been published regarding testing fresh properties and mechanical properties of FRC, respectively. This report is the third and final report on testing FRC for its durability properties, including shrinkage, creep, and permeability. Several standard and nonstandard test methods are presented in this report to represent some of the knowledge in this area.
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This guide to concrete proportioning provides background information on, and a procedure for, selecting and adjusting concrete mixture proportions. It applies to normal-density concrete, both with and without chemical admixtures, supplementary cementitious materials, or both. The procedure uses calculations based on the absolute volumes occupied by the mixture constituents. The procedure incorporates consideration of requirements for aggregate gradation, workability, strength, and durability. Example calculations are provided, including adjustments based on the results of the first trial batch. Appendixes cover laboratory tests and proportioning of high-density concretes.
Keywords:
absolute volume; admixtures; air content; durability; mixture proportioning; supplementary cementitious materials; trial batching; water-cementitious materials ratio (w/cm); workability; yield.
Code:
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Full title: ISO 19902 - Petroleum and natural gas industries — Fixed steel offshore structures - Second edition
Edition: 2nd Edition
Publish Date: 2020-11
Author(s): Technical Committee ISO/TC 67
Publisher: International Organization for Standardization
Language: English
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ASCE/SEI 43-19 - Seismic Design Criteria for Structures, Systems, and Components in Nuclear Facilities
Author(s): American Society of Civil Engineers Edition: 2nd Edition Publish Date: 2019 ISBN: 9780784415405, 9780784482407 Published By: American Society of Civil Engineers Related Links:
Code:
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BS EN ISO 22475-1:2006 - Geotechnical investigation and testing Sampling methods and groundwater measurements Part 1: Technical principles for execution
This part of ISO 22475 deals with the technical principles of sampling of soil, rock and groundwater, and with groundwater measurements, in the context of geotechnical investigation and testing, as described in EN 1997-1 and EN 1997-2.
Code:
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Author(s): Frank Harris Edition: 1st Edition Publish Date: 1989 ISBN: 978-0582031968, 0582031966 Published By: Longman Related Links:
Code:
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