Wednesday, 24 September 2014

Two new Design in Cold Formed Steel Seminars Scheduled

Our sister organization, the Cold-Formed Steel Engineers Institute Canada is hosting a Design in Cold Formed Steel Seminar. Below are the details.

Design in Cold Formed Steel: Using the North American Specification for the Design of Cold-Formed Steel Structural Members CSA Standard S136-12

When & Where
Tuesday, November 25, 2014 in Fredericton, NB
Wednesday, November 26, 2014 in Halifax, NS

CFSEI Members - $225
Non-Members - $275

Each registrant will also receive a comprehensive set of lecture notes full of explanatory material and worked examples.

Registration is limited to 50 people on a first-come first-serve basis.

About the Seminar
The primary objective of this seminar is to make the designer conversant with the latest edition of CSA Standard S136-12 (North American Specification for the Design of Cold-Formed Steel Structural Members). This is a harmonized document between Canada, the US and Mexico, and supersedes the 2007 edition (including Supplement 2010). The Specification was developed through a joint effort of the American Iron and Steel Institute’s (AISI) Committee on Specifications and the Canadian Standards Association’s S136 Technical Committee. In comparison to the 2007 edition of S136 (including Supplement 2010), a number of significant changes have been incorporated into the North American Specification, in part due to the harmonization process and in part due to latest research developments. 

The intent is to bring the participant up-to-date with the current design provisions contained in the new North American Specification for the Design of Cold-Formed Steel Structural Members (S136-12), highlighting significant changes from the 2007 edition of S136. As well, numerous illustrative examples will be presented.

  • Introduction 
  • Materials
  • General Design Considerations
  • Elements in Compression
  • Members in Tension
  • Members in Bending
  • Members in Compression
  • Combined Bending and Compression
  • Connections
  • Member Bracing
  • Testing and Fatigue
  • Direct Strength Method
Also, the latest Editions of the AISI North American Design Standards for Cold-Formed Steel Framing will be reviewed since these design standards are referenced by CSA S136 for use in Canada.

Registrants are encouraged to bring a copy of the S136-12 Standard to the seminar. If necessary, this can be purchased from CSA by telephone [416-747-4044, or 800-463-6727], E-mail [] or by visiting their web site at

8:00 am     Registration and coffee
8:30 am     Seminar begins
10:15 am   Break
12:00 pm   Lunch provided
12:45 pm   Seminar resumes
2:30 pm     Break
4:30 pm     Seminar concludes

Who Should Attend

  • Anyone involved in the design of cold formed steel structural members. This seminar will provide a quick and effective means of learning about the 2012 edition of CSA S136 (North American Specification for the Design of Cold-Formed Steel Structural Members).
  • Anyone who would like the opportunity to have questions answered concerning all aspects of cold formed steel design.
Dr. R.M. Schuster, P.Eng.
University of Waterloo
Waterloo, Ontario

Dr. S. R. Fox, P.Eng.
General Manager
Canadian Sheet Steel Building Institute
Cambridge, Ontario

Tuesday, 16 September 2014

CSSBI Colleague Thanked for Contribution to the CEE Structures Lab at the University of Waterloo

Dr. Reinhold Schuster, respected colleague of the Canadian Sheet Steel Building Institute was honoured last week at a ceremony at the University of Waterloo Department of Civil and Environmental Engineering (CEE) Structures Laboratory. Dr. Schuster was instrumental in securing the donation of a new 2500 kN portal frame for the CEE Structure Laboratory.

Click here to read the thank you letter from the University to Dr. Schuster.

Tuesday, 9 September 2014

Application of UL Fire Resistance Ratings in Canada

The National Building Code of Canada, Part 3 on Fire Protection, Occupancy Safety and Accessibility, requires the fire resistance ratings for assemblies to be determined on the basis of tests conducted in accordance with CAN/ULC-S101 “Fire Endurance Tests of Building Construction and Materials”. S101 is a Canadian test standard used by agencies like Underwriters’ Laboratories of Canada (ULC) to conduct fire testing of building components. ULC listings have been used by Canadian design professionals for many years to select fire rated building assemblies, but there is another source for listings that significantly increases the available options: these are the Underwriters Laboratories Inc. (UL) tested assemblies.

It was always possible to use the UL listed assemblies in Canada, but questions were raised about the equivalence of the UL tests to the requirements of CAN/ULC-S101, and in particular the impact of UL loads calculated using Allowable Strength Design instead of Limit States Design as required in Canada. To address this difference in design approach, the UL designs included a “load restricted factor” (LRF) to reduce the design load for Canadian applications.

Working with UL and ULC, representatives of the Steel Framing Alliance, Canadian Steel Construction Council and the American Iron and Steel Institute were successful in getting adopted a LRF of unity for load-bearing cold-formed steel wall and floor assemblies listed in UL’s directory. Having no load restriction is possible because the calculation of the member resistance in Canada and the U.S. is based on the same standard: CSA S136-07 or ANSI/AISI S100-07, “North American Specification for the Design of Cold-Formed Steel Structural Members”.

Prior to this development, only assemblies that were ULC rated were readily accepted, and because very few tested assemblies were listed in their directory, cold-formed steel faced a significant barrier to entry into the mid-rise construction segment. With the removal of any load restriction, about 30 UL fire-rated load-bearing wall assemblies can now be used in the Canadian market. This LRF can only be applied to load-bearing wall assemblies tested with laterally braced steel studs which account for the majority of UL listed assemblies. In comparison, a more conservative factor of 0.82 and 0.65 must be applied to wood framed walls and floors respectively.

For More Information from UL
For more detailed information, please refer to UL’s website ( and open “BXUV7.GuideInfo” (on the bottom of their homepage, click on “Certifications”, then entre BXUV7 in the “UL Category Code” box and click search, then click on the “link to file” BXUV7.GuideInfo). For more specific help, contact the Standards and Codes Consultation Services staff at ULC through their website at

Click to download Technical Bulletin Volume 1 Number 3: Application of UL Fire Resistance Ratings in Canada