Truss Pal

We wrote an article about Deferred Design and Effective Communication for this month's issue of STRUCTURE Magazine! Let's talk about it. https://lnkd.in/eeQre5eQ

Answer: The highest stress occurs at the vault in member B3. The lumber grade would have to be upgraded to Dense Select Structural to handle the bending.

Truss Tuesday: Will it Bend? Question: Which member of this hip girder has the highest stress? There are jacks every 2 feet across most of the bottom chord. Building Code: FBC2020 Loads (psf unless otherwise noted): TC Live Load 20 TC Dead Load 10 BC Live Load 0 BC Dead Load 10 Wind: 160 mph The answer will be posted on Thursday! This is not a production truss! This is simply an example for Truss Tuesday conversation. You can view this post on our website along with previous Truss Tuesday questions and truss-related articles. https://lnkd.in/gbVUx4ju #trusstuesday #truss #trusses #woodconstruction #structuralengineering #engineering #trussdesign

Answer: T1 can be replaced with No. 3, but replacing B1 with No. 3 would cause the truss to go over capacity.

Truss Tuesday: Floored Question: While the TPI Technical Advisory Committee recommends that the minimum grade of visually stress-related lumber used for truss chords should be No. 2 grade, could you hypothetically use No. 3 for either one and still perform under capacity? Top and Bottom Chords are Southern Pine No. 2 Webs are Southern Pine No. 3 Building Code: IBC 2021 Loads (psf unless otherwise noted): TC Live Load 40 TC Dead Load 10 BC Live Load 0 BC Dead Load 5 The answer will be posted on Thursday! This is not a production truss! This is simply an example for Truss Tuesday conversation. You can view this post on our website along with previous Truss Tuesday questions and truss-related articles. https://lnkd.in/gbVUx4ju #trusstuesday #truss #trusses #woodconstruction #structuralengineering #engineering #trussdesign

We're taking a break from #trusstuesday today. Check out this article on understanding horizontal distance to windward edge instead! https://lnkd.in/e9ZPX2X5 #trussdesign #woodconstruction #structuralengineering

Answer: It’s B2! That span is long enough to cause significant bending in the bottom chord. The tower is well-supported by the thick end vertical and permanent bracing.

Truss Tuesday: Tower of Terror Question: This truss has one chord member that needs to be upgraded to Number 1, but all the rest will work at Number 2. Which one do you think it is? Chords are 2x4 Southern Pine #2 Webs are 2x4 Southern Pine #3 End Vertical is 2x8 Southern Pine #3 Building Code: FBC 2020 Loads (psf unless otherwise noted): TC Live Load 20 TC Dead Load 10 BC Live Load 0 BC Dead Load 10 Wind: 130 mph The answer will be posted on Thursday! This is not a production truss! This is simply an example for Truss Tuesday conversation. You can view this post on our website along with previous Truss Tuesday questions and truss-related articles. https://lnkd.in/gbVUx4ju #trusstuesday #truss #trusses #woodconstruction #structuralengineering #engineering #trussdesign

The "simplest" way to get this truss under capacity is to upgrade T3 to a 2x6! How did you do it?

Truss Tuesday Time! Question: This truss is over capacity. What are some ways to fix it? Top Chords are 2x4 Southern Pine No 2 Bottom Chords are 2x4 Southern Pine No 1 Webs are 2x4 Southern Pine No 3 Building Code: IBC 2021 Loads (psf unless otherwise noted): TC Live Load 20 TC Dead Load 10 BC Live Load 0 BC Dead Load 10 Application: Residential Wind: 130 The answer will be posted on Thursday! This is not a production truss! This is simply an example for Truss Tuesday conversation. You can view this post on our website along with previous Truss Tuesday questions and truss-related articles. https://lnkd.in/gbVUx4ju #trusstuesday #truss #trusses #woodconstruction #structuralengineering #engineering #trussdesign