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  • Today’s complex truss designs can present significant installation challenges to framers if there isn’t good communication between the framer and the manufacturer.
  • From storage and lifting pick points to critical bearing conditions, safe handling and installation practices need to be effectively communicated to installers.
  • During the design phase, manufacturers can help ensure smooth installation by considering the framing challenges a complex design may create and facilitate cross communication between parties.

The purpose of this article series is to identify truss-related structural issues sometimes missed due to the day-in and day-out demands of truss design/production and the fragmented building design review and approval process. This series will explore issues in the building market that are not normally focused upon, and provide recommended best-practice guidance.

Gypsum wallboard provides an excellent example as to
why accurate design values are so vital to structural design.

Introduction: Why the Interior Finish Installation Is Important

Why Seismic Design Coefficients (i.e., factors) are important to engineering innovation
  • The 2012 IRC does not provide sufficient details on how to connect wood trusses to braced wall panels.
  • SBCA has developed a couple of details and will continue to develop standard details that provide code-compliant connections between roof/floor trusses and braced wall panels.
  • Component manufacturers can provide framers with specialty or standardized blocking panel products to reduce the time needed to install the blocking between trusses for these connections.

 

  • Use of galvanized box nails may result in shear walls with a shear capacity significantly below the nominal unit shear capacities given in SDPWS.
  • Thus, the majority of WSP shear walls have a shear capacity with a high degree of design value variability. This may have unintended consequences that are unknown and unappreciated by the professional engineering and/or building design community.
  • Once SBCA and SBCRI were certain their testing and engineering analysis was consistent and repeatable, they were persistent in bringing all WSP shear wall performance issues to the attention of APA, AWC, ICC-ES and ICC.  

“Think more about the problems customers face and figure out a way you can solve it by improving upon what you already produce.”