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.
Beyond spotting their own errors and minimizing headaches and guesswork for your production line, truss designers also have the ability to make or break your company through the quality of their designs.
When the IRC provides a solution that cannot be supported by testing of real buildings in a code-compliant application of braced walls, more accurate and technically correct engineered solutions will never be able to compete.
There is some resistance in the market to establishing standard factors for product equivalency or system performance because it may result in non-wood products graining an advantage over traditional OSB market share.
A top testing priority for SBCA is “Framing the American Dream III,” which seeks to test a typical stick framed roof and compare its performance to an identical engineered truss roof.
Combining fiber reinforcement with finger jointed lumber could be a win for both the lumber and component industries.
With in-line framing, CMs can remove studs and plate material, and spread the stud spacing out to 24", which, in some cases, allows for better insulation methods.
The key to new product development is generating sales revenue immediately by establishing design values and engineering reports that give assurance of the product’s equivalent code-compliant performance.
Based on the recommendations of the IRC, IBC and ASCE 7, truss or rafter uplift connections should be designed for applied wind loads using MWFRS analysis.
Individual truss and rafter members should be designed using C&C generated wind loads.
The SBCA Load Guide includes information about uplift connections for structural building components.
