Differential Deflections … and the Simpson Strong-Tie Strong-Drive® SDPW Deflector Screw (c) Jeff R. Filler, May 2022, Pell City, AL I haven’t tried one out yet … the Simpson Strong-Tie Strong-Drive® SDPW Deflector Screw … but the idea is fascinating …

Differential Displacements and the SST SDPW Deflector Screw Read more »

Shear Deflection – Prefab Wood I-Joist Example Calc (c) Jeff R. Filler, Pell City, 2022 Continuing our discussion on shear deflection of wood beams (joists, etc.), let’s look at a prefabricated wood I-joists. Basic design information for prefabricated wood I-joists …

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E min (c) Jeff R. Filler, Pell City, Alabama, 2022 But First, E apparent and E true `E min’ is calculated wood property used in the design of structural wood members (beams, columns, etc.). It is a derived property, derived …

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Deflections and Average Modulus of Elasticity (c) Jeff R. Filler, 2022 A word on the accuracy of deflection calculations … wood beams, joists, etc. In the example above (link) we calculated a deflection of 0.599 in. How accurate is this …

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Designing a roof rafter … (bending stress) … Linda wants a barn-shelter for her goats. Okay – I’ll do it. `Twelve by twenty-four.’ `Let’s go walk the site. It’s got some slope. I’ll make a stepped-barn, each section will be …

roof rafter calcs … BENDING STRESS Read more »