Aisc Code Of Standard Practice

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TheAISC Code of Standard Practice provides a framework for a common understanding of the acceptable standards when contracting for structural steel. As such, it is useful for everyone associated with construction in structural steel. Unless specific provisions to the contrary are contained in the contract documents, the existing trade practices that are contained therein are considered to be the standard custom and usage of the industry and are thereby incorporated into a contract between the related parties.

The Code is adopted into the International Building Code by reference to the Specification for Structural Steel Buildings and the Seismic Provisions for Structural Steel Buildings. This document provides the specific references in these standards where the Code is cited.

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The AISC Seismic Provisions apply to the design, fabrication, and erection of structural steel and composite steel and concrete seismic force-resisting systems. They are used in conjunction with the AISC Specification for Structural Steel Buildings. Both LRFD and ASD methods of design are incorporated. Dual-units format provides for both U.S. customary and S.I. units.

The prequalified connections standard has been developed by the AISC Connection Prequalification Review Panel in accordance with Chapter K of the Seismic Provisions for Structural Steel Buildings. These connections have been prequalified for use in special and intermediate steel moment frames without the need for additional testing. Dual-units format provides for both U.S. customary and S.I. units.

Seismic Provisions for Evaluation and Retrofit was developed and approved by the AISC Committee on Specifications. It is a revision to the structural steel provisions provided in the 2017 edition of ASCE/SEI 41, Seismic Evaluation and Retrofit of Existing Buildings, and is intended to be adopted in Chapter 9 of the next edition of that standard. The 2022 version of ANSI/AISC 342 is the first edition of this standard. Dual-units format provides for both U.S. customary and S.I. units.

The AISC Specification provides the generally applicable requirements for the design and construction of structural steel buildings and other structures. The 2022 edition of the AISC Specification and Commentary supersedes and is an update of the 2016 edition. Both LRFD and ASD methods of design are incorporated. Dual-units format provides for both U.S. customary and S.I. units.

Also important to note is that portions of the Code have been incorporated by reference into the International Building Code. The IBC references ANSI/AISC 360 (the AISC Specification) and ANSI/AISC 341 (the AISC Seismic Provisions), and these documents both reference parts of the Code. A complete list of these parts is provided at www.aisc.org/303IBC.

Since the first edition of the Code was published in 1924, AISC has constantly surveyed the structural steel design community and construction industry to determine standard trade practices. Since then, this Code has been updated periodically to reflect new and changing technology and industry practices. The Code is significant and important to the process of buying and selling fabricated structural steel. Its provisions are balanced, fair, and consensus-based, and provide for the vast majority of work in standard form.

The fabrication and erection tolerances in the AISC Specification, the AISC Code of Standard Practice, AWS D1.1/D.1.1M, and other applicable specifications and codes have evolved for nearly a century. Although these standards generally present a workable format for the fabricator and erector, they tend to address individual members rather than the role of individual members in the completed structure.

More restrictive tolerances could possibly be met, but this might involve a higher cost. Special clearances or tolerances may be difficult or impossible to achieve because of considerations such as temperature change, fabrication and construction procedures and erection stresses. When specified, such requirements must be identified in the contract documents. The additional cost of special or more restrictive tolerance requirements should be justified.

While individual member tolerances are usually self-compensating and of minor significance in the overall structure, the possibility exists that these tolerances may accumulate and lead to unacceptable misalignments that are difficult to correct in the field.

As an example of the effect individual member tolerances may have on the total structure, consider the tolerances on columns and beams. Individual column and beam members are shown with their respective permissible tolerances in Figure 3.5.3-1. These tolerances come from several sources:

The following example involves a possible, but highly unlikely, scenario. A case where individual members fabricated within permissible tolerances could make it impossible to erect a heavy two-story column within the plumbness tolerance of 1:500 is illustrated in Figure 3.5.3-2. Although the condition shown would be unusual and represents the worst case with all member tolerances maximized and accumulated in one direction, it is evident that the accumulation of tolerances requires special consideration.

Details for material supported by the steel framing must provide for the standard tolerances. For example, in buildings with large plans, it is beneficial to develop special details that accommodate the accumulation of fabrication tolerances. Note that building expansion joints cannot be adjusted to proper position without a provision for this adjustment.

The use of oversized holes, short-slotted holes, and longslotted holes provides a satisfactory method for achieving erection within tolerances, as illustrated in Figures 3.5.3-3 and 3.5.3-4. Other satisfactory methods include the use of finger shims, shop layout to theoretical working lines, and recognition of tolerance accumulation in details for finishes, such as the faade attachments. See AISC Design Guide No. 22: Faade Attachments to Steel-Framed Buildings for further information.

The 2016 Code of Standard Practice provides a framework for a common understanding of the acceptable standards when contracting for structural steel. As such, it is useful for everyone associated with construction in structural steel. Unless specific provisions to the contrary are contained in the contract documents, the existing trade practices that are contained therein are considered to be the standard custom and usage of the industry and are thereby incorporated into the relationships between the parties to a contract. The 2016 edition is an ANSI-accredited standard.

This document is available as a free download at www.aisc.org/standards. This item is Inactive Non-member price: 25.00 Discounted member price: 12.50 Your price: Product price must be a valid currency amount between 0 and 1000000. Product price is required. Revert to original price You could save: 50.0% Quantity: Quantity is required. Quantity must be a positive whole number.

The Code of Standard Practice for Structural Stainless Steel Buildings provides a framework for a common understanding of the acceptable standards when contracting for structural stainless steel. Unless specific provisions to the contrary are contained in the contract documents, the existing trade practices that are contained therein are considered to be the standard custom and usage of the industry and are thereby incorporated into a contract between the related parties.

This course presents information on the standard practice for steel buildings and bridges. It has been updated from AISC 303-05 to AISC 303-10. The contents cover materials, contract documents, shop and erection drawings, shop fabrication and delivery, erection, quality assurance, contracts and architecturally exposed structural steel. The course materials are based entirely on the AISC publication: AISC Code of Standard Practice for Steel Buildings and Bridges (AISC 303-10, current version). This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of course materials.

The first edition of AISC Code of Standard Practice for Steel Buildings and Bridges (AISC 303) was published inOctober, 1924. The trade practices established and set forth inthis Code define custom and usage for thefabricated structural steel industry in the UnitedStates for steel buildings, bridges, and otherstructures. The provisions of this Code govern thefabrication and erection of structural steel, in theabsence of individual provisions in the contractdocuments superseding corresponding, individualprovisions of this Code.

AISC 303 is maintained and updated by a committee consisting of approximately 30 members representing both the design community and the steel construction industry. According to the American Institute of Steel Construction, the current 2010 edition is not a complete revision of the 2005 edition but does include the following significant changes/improvements:

Clarification has been added in Section 2 that base plates and bearing plates are considered structural steel if they are attached to the structural frame, but not if they are loose items that do not attach to the structural steel frame.

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