Hardcopy Publications on Sale Now!

Most of our hardcopy publications are now on sale. The purchase price for the documents is now FREE*, just pay shipping and handling so we can cover our costs to ship the documents to you. Order now while supplies last!

Documents on sale:

• CSSBI 51-06: Lightweight Steel Framing Design Manual - 2nd Edition (Regular Price: $35)
• CSSBI 56-00: Residential Steel Framing - Training Curriculum (Regular Price: $75)
• CSSBI B13-06: Design of Steel Deck Diaphragms - 3rd Edition (Regular Price: $50)
• CSSBI B15-07: NBC 2005: Snow, Wind and Earthquake Load Design Criteria for Steel Building Systems (Regular Price: $10)

Go to the Resources section of the CSSBI website to place your order.

* Exclusion: Design of Design in Cold Formed Steel Seminar Handout

New Design in Cold-Formed Steel Seminars Scheduled - Register Now!

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, April 7, 2015 - Ottawa, ON

Tuesday, April 14, 2015 - Vancouver, BC

Wednesday, April 15, 2015 - Winnipeg, MB

Registration:

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. 

Topics
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 [sales@csa.ca] or by visiting their web site at www.csa.ca.

Schedule
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.

Speakers

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

Application of the National Energy Code for Buildings 2011 to a Steel Building System

Dockside Green Power Generation Building - Victoria, BC

The National Energy Code for Buildings (NECB) was published in the fall of 2011. It is a National Model Code which will be adopted by the Provinces and Territories to the extent it meets their plans. It applies to the construction of new buildings that are required to meet the provisions of Part 3 of the National Building Code of Canada, or the applicable Provincial Building Code.

There are four paths through which building designs may comply with NECB 2011:

1. The Prescriptive Path (Section 3.2) in which assemblies and components must meet minimum prescribed performance requirements.
2. The Simple Trade-off Path (Section 3.3.3) in which certain assemblies or components may not meet the prescribed performance requirements, while other assemblies or components exceed the prescribed performance requirements, such that the overall performance of the building will not use more energy.
3. The Detailed Trade-off Path (Section 3.3.4) in which a computer model is used to establish a reference building envelope energy target. Some components are permitted to be less energy efficient provided it can be demonstrated the building envelope will not transfer more energy than the building envelope energy target.
4. The Performance Path (Section 3.4) in which the Trade-Off methodology is extended to include equipment inside the building, (i.e. fans, appliances, elevators, etc.) and a computer model is used to determine that the building assemblies, components and equipment in aggregate, will not use more energy than the reference building envelope energy target. 

The Prescriptive Path provides maximum overall thermal transmittance for the building walls, roof, fenestration and doors (refer to Section 3.2.2). The Prescriptive Path also allows certain percentages of total wall area for vertical fenestration and doors (Section 3.2.1.1_1). For heating degree days (HDD) less than 4000, the ratio of area of doors and fenestration to total wall area can be a maximum of 40%. For HDD between 4000, and 7000, this ratio is calculated as (2000-0.2xHDD)/3000. For HDD over 7000, this ratio is 20%. As it gets colder, the allowable area for doors and windows decreases. The Prescriptive Path further allows up to 5% of the gross roof area to be skylights (Section 3.2.1.4_2)

The Simple Trade-off Path demonstrates that the sum of the areas of vertical (or horizontal) assemblies of the building envelope multiplied by their respective overall thermal transmittance is not more than the corresponding assemblies in the reference building. The reference building for the Simple Trade-off Path is the same building used with the Prescriptive Path.

If certain components are more energy efficient than those prescribed in the Prescriptive Path, the trade-off calculation is permitted to take this increased performance into account.To perform the calculation, vertical (wall) portions of the building envelope can only be traded off against other vertical (wall) portions, and horizontal (roof) portions of the building envelope can only be traded off against other horizontal (roof) portions.

The Simple Trade-off Path cannot be used for semi-heated buildings, which require less energy than a reference building with a temperature set point of 18°C, and have heating capacity no greater than the heating load plus 5%. For semi-heated buildings, the Detailed Trade-off Path or the Performance Path, must be used.

The Detailed Trade-off Path and the Performance Path utilizes computer energy modelling and the services of a professional engineer proficient in this work.

To learn more about Steel Building Systems and the National Energy Code for Buildings, download our Fact Sheet #37: Application of the National Energy Code for Buildings 2011 to a Steel Building System

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