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- engineering analysis
- The truss industry’s innovative products and software form the link between new science-based discoveries and their application.
- The mission of any professional engineering endeavor is to deploy innovative materials, designs or methods of construction that meet or exceed all regulations, protect the consumer and preserve free and unfettered competition as the rule of trade.
- 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.
I had an interesting conversation recently with an engineer that I have known for at least 15 years.
- Everyone’s looking for good people right now, and SBCA’s WFD website connects CMs with job candidates; CMs can help this effort by posting openings and viewing resumés.
- SBCA’s online training programs show new hires how our industry can become a career, and gives them the skills to quickly integrate and be productive at the plant.
- BCMC and BCMC Build are the perfect ways to recharge and help us build an industry community where new ideas, strategies and friendships can converge.
When Goldilocks went to the bear’s house, it took her a while to find something that fit her just right. Fortunately, whether you’re a large manufacturer, a small one, or somewhere in between, a formal in-plant QC program is always a perfect fit. In this second article of our series looking at QC, we reached out to component manufacturers of all sizes and asked them about their experiences using the In-Plant WTCA QC program and TPI’s third-party inspection services.
Here’s a quick history lesson. In reviewing public documents surrounding the 2010 Final Action Hearing of the ICC with regard to proposals RB31-9/10 and RB87-9/10, one would gather the following information:
- Applied loading take-offs are critical to truss design efficiencies.
- Communication between the Truss Designer and Truss Design Engineer is key to minimizing truss design inaccuracies.
- The SBCA Load Guide is a free tool that can help Building Designers and everyone involved in the truss design process ensure that the applied loads are correct.
- The future holds great promise for component manufacturers, as we continue to evolve our collective engineering acumen.
- Greg Brooks’ online blogs gave us an opportunity to share the great work taking place at SBCRI.
- Our industry is at a pivotal moment in its history with regard to the value of the engineering that goes into producing structural building components
Given that our industry is in the component design and engineering business, which is closely related to the building design business, accurate and reliable engineering is central to every CM’s future success.
optimization using SBCRI truss assembly test data.
- A repair may not be needed if, after adding the holes, visually graded lumber still meets an adequate grade according to the appropriate grading criteria.
- The Combined Stress Index (CSI) is the summation of axial and bending stresses divided by their respective allowable stresses, which represents the structural “efficiency” of the member; the CSI shall not exceed 1.00.
- Coordinating with trades before construction is a good way to avoid holes and notches in trusses, and the costly repairs associated with them.
Take raw ore, throw it into the fires of hell & out comes steel.
When it comes to code compliance for your new product, consider a road less traveled that can be much quicker and more robust than the traditional path.
- 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.
The structural building components industry lost one of its greatest champions, Don Hershey, when he passed away at home last November.
“In the almost five decades I have been in the component manufacturing business, I have never had a lumber mill ask me what I thought they should produce,” said Bob Ward (Southern Components). “They didn’t care what I needed; instead, I had to choose from what they provided.”
While frustrating for component manufacturers like Ward, and less than optimal for both sides, the top-down model of lumber suppliers dictating the lumber properties they sell and essentially telling their customers, “if you do not buy what we produce, we’ll sell it to someone else,” has been standard operating procedure throughout the years.
We sincerely encourage all SBCA CM Members to read this article on SPIB's Supplement #9, which contains an in-depth analysis of a series of next steps that all members should consider implementing that are intended to provide a best practices roadmap.
- The ICC and AWC have published and through code adoption provide as law nominal unit shear capacity values, which are to be applied in accordance with the installation requirements of the building code and/or the code referenced WFCM and SDPWS.
- Our goal at SBCRI has been to provide a technically reasonable foundation upon which to make engineering judgments when designing braced wall panels for lateral load resistance.
- True creative innovation can only take place within the light frame construction industry when there is an accurate technical foundation.
"If I have one hand in the oven, and my other hand is in the freezer, on average, I would think I’m doing alright!” This was a typical analogy used by Dr. Stanley K. Suddarth, Ph.D., P.E., in this case, to demonstrate the potential problems associated with using averages in calculations. When Stan Suddarth passed away on June 9, 2011, in Newburg, Oregon, he left behind a significant legacy in academia and the structural building components industry. In 1986, he was one of the first two inductees into the SBCA Hall of Fame in recognition of his considerable contributions to the industry.