Tech Note L001-10: Design of Diagonal Strap Bracing Lateral Force Resisting Systems for the 2006 IBC
$5.00
Summary: This Technical Note is intended to discuss some of the design requirements, detailing and practical limitations of diagonal strap bracing design. Diagonal flat strap bracing is a commonly used type of lateral force resisting system in residential and low rise commercial cold-formed steel applications.
This Technical Note is an editorial revision of Technical Note L001-09.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Related Products
Tech Note G103-11a: Tabulated Local And Distortional Elastic Buckling Solutions For Standard Shapes
Summary: This note provides elastic buckling moments and forces for local and distortional buckling of typical standard sections such as those in the AISI S201 Standard for Cold-Formed Steel Framing—Product Data and the Steel Stud Manufacturers Association (SSMA) Product Technical Information Catalog. These tabulated values allow designers to quickly examine and evaluate the use of the direct strength method (DSM) for design. Note that basic information on DSM is discussed in CFSEI Technical Note G102.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note 559: Design Considerations for Flexural and Lateral-Torsional Bracing
Summary: Load bearing cold-formed/light gauge steel (CFS/LGS) framed walls are typically designed for a combination of axial and lateral out-of-plane (flexural) loading. Under this loading condition, common C-section studs may be susceptible to local, torsional, flexural, torsional-flexural, lateral-torsional or distortional buckling. The response performance of the stud depends on a number of parameters most notably how it is supported along its length (including its ends), the relative magnitudes of the applied loads and the distribution of these loads. This Technical Note discusses the behavior of the typical wall stud and provides some practical considerations for design of torsional-flexural and lateral-torsional bracing. Recommendations and considerations suggested in this technical note are done in accordance with acceptable practices and existing design documents.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note 360: Acoustic Insulation and Sound Transmission in Cold-Formed Steel Construction
Summary: Cold-formed steel has been widely used in commercial buildings, especially in non-load bearing (partitions) and curtain wall applications, and is increasingly used as primary structural members, such as beams and columns, or as load-bearing walls or partitions in commercial and residential construction. The acoustic performance of floors and walls is an important consideration for many buildings.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note G102-09: Designing Cold-Formed Steel using the Direct Strength Method
Summary: The Direct Strength Method is an entirely new design method for cold-formed steel. The Direct Strength Method requires no effective width calculations, eliminates tedious iterations to determine section properties, properly includes interaction effects between elements of the cross-section such as the flange and the web, and opens up the potential to create new sections as it is applicable to nearly any shape that can be formed from cold-formed steel, as opposed to just C, Z and hat shapes. The Direct Strength Method was first adopted in 2004 as Appendix 1 to the North American Specification for the Design of Cold-Formed Steel Structural Members, and the most recent version can be found in the recently published AISI-S100-07. This CFSEI Technical Note introduces the Direct Strength Method and details some of the features of a recently published AISI Design Guide for this Method. The intent of this Tech Note and the Guide is to provide engineers with practical guidance in the application of this new design method.
Note: This document was originally published as G100-09, Corrected to G102-09 in April 2011
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note F140-16: Welding Cold-Formed Steel
Summary: In cold-formed steel construction, welding is a viable connection method. Of the various forms of welding, arc welding is most commonly used to join both cold-formed steel members and hardware components. Prefabrication of roof trusses, panelization of walls, and hardware connections are all ideal applications where welding may be the preferred joining method. This Tech Note provides information on the applicable codes, processes, procedures, design considerations, fabrication and inspection.
This Technical Note updates and replaces CFSEI Technical Note F140-10
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note G000-08: Cold-Formed Steel Design Software
Summary: This Tech Note gives basic information about computer programs available for the design of cold-formed steel framed buildings, structures, and structural elements. It is not necessarily a comprehensive list, but is based on the best available information to the CFSEI at the time of publication. It is not intended to endorse or exclude any particular software program.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note B005-20: Introduction to Cold-Formed Steel Framing Design Aids
Summary: Both steel industry and manufacturers’ associations provide design aids that assist engineers with the proper application of the cold-formed steel design challenges. Design examples and design aids are essential to educate an engineer in the proper use and design of cold-formed steel members, connections and assemblies. This Tech Note provides an overview of some of the available cold-formed steel framing design aids.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.
Tech Note G101-08: Design Aids and Examples for Distortional Buckling
Summary: The objective of this Tech Note is to provide design examples and design aids specific to cold-formed steel framing systems that address the new distortional buckling limit states added to AISI-S100 in the 2007 edition. In addition, a method is provided for including rotational restraint, provided by sheathing to members, in the design calculations for distortional buckling. This method has been proposed for the next edition of AISI-S210 (floors and roofs) and AISI-S211 (walls studs) standards and partially mitigates the reduced capacity in the distortional buckling limit state.
Note: This document was originally published as G100-08, corrected to G101-08 in April 2011.
Disclaimer: Designs cited herein are not intended to preclude the use of other materials, assemblies, structures or designs when these other designs demonstrate equivalent performance for the intended use. CFSEI documents are not intended to exclude the use and implementation of any other design or construction technique.