Let’s look at a post, say in a shop, or a barn, acting as a vertical cantilever. This means that the base of the post is held rigid (not allowed to rotate), while a lateral (horizontal, or sideways) load is …

Cantilever Post Deflection (Post and Bracket) Read more »

Continuing from Part 1 … Step 6: Determine the external pressure coefficients, GCpf … Section 28.3.2.   For Case 1 we get … roof slope tan-1 4/12 = 18.4° … interpolating between 5° and 20° … interp GCpf per slope, …

Wind Load on a Shop Using ASCE 7-22 (Envelope Procedure) – Part 2 (Horizontal Force) Read more »

Part 1 – Velocity Pressure Let’s consider a shop to be constructed in, say, Latah County, Idaho, near the recently publicized college town of Moscow. The shop will not be a `business’, per se; in other words, people will not …

Wind Load on a Shop Using ASCE 7-22 (Envelope Procedure) (Part 1 – Velocity Pressure) Read more »

V (pronounced `Veeee’, in wood engineering, in any particular usage, generally stands for one of two things. As pertaining to loads and forces in (inside of) wood structural members themselves, V stands for `Shear’, in particular `horizontal shear’, and specifically …

Veeeee Read more »

Okay, let’s say I’m gonna build a `shop’ near, say, Moscow (Latah County), Idaho, Zip 83843. The big worries there are snow, in winter, and wind, any time of year. For wind, let’s go to https://hazards.atcouncil.org, … `Wind’, and then …

The 50-Year Wind Read more »

Pole barn versus post frame … how to keep the structure from flopping over? Consider a barn, or perhaps a shop, made using timber and `posts’. There are two main ways to keep it from flopping over. One way is …

`a constantly debated topic’ (pole barn versus post frame) Read more »

E (E and shear-free E) (c) Jeff R. Filler, 2022 The deflections calculated in earlier examples (link and link) are based on the standard engineering formula for beams based on beam-curvature theory – where the beam curvature is a result …

Shear-Free Eeee Read more »

6 x 6 wood post versus 3-ply 2 x 6 © Jeff R. Filler, May 2022, Pell City (DRAFT) If you are an a professional engineer providing designs (or fixes) for wood-frame construction, sooner or later you will be asked, …

6 x 6 sawn post vs 3-ply 2 x 6 Read more »

CCA-C `Above Ground’ Preservative Treated Lumber for an NLT Step © Jeff R. Filler, May 2022, Pell City This is so fun I can hardly stand it. I’ll edit later. I am working on some NLT steps for my wife’s …

NLT `Mass Timber’ Step Read more »

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 »