weight of wood (posts)
Yesterday I went to the building supply store to get some pressure-treated 4 x 4 posts. (for more fence … gates, etc.!). I’m always amazed by how `wet’, and heavy, pressure-treated posts are, at the store. I pulled them from …
Tag: design
AITC 119 and EEEE
I was doing some reading in AITC 119 Standard Specifications for Structural Glued Laminated Timbers of Hardwood Species, Section 4.1.6 … “ … modulus of elasticity, E, values herein are the average values … The modulus of elasticity of wood …
Cantilever Post Deflection (Post and Bracket)
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 …
Wind Load on a Shop Using ASCE 7-22 (Envelope Procedure) (Part 1 – Velocity Pressure)
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 …
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Veeeee
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 …
The 50-Year Wind
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 …
6 x 6 sawn post vs 3-ply 2 x 6
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, …
Differential Displacements and the SST SDPW Deflector Screw
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 …
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Shear Deflection – Prefab Wood I-Joist
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 …
E min
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 …