(c) Jeff R. Filler, Pell City, April 2023 `Components and Cladding’ … or C & C or `see and see’. In earlier posts we looked at the Main Wind Force Resisting System (MWFRS) wind forces on a couple buildings, specifically, …

C & C Read more »

(c) Jeff R. Filler, Pell City, April 2023 In earlier posts we looked at the `main’, or `overall’, wind forces on a rather low, wide `shop’ (here and here), and on a relatively narrower and taller `house’ (here).  Specifically, we …

`Corners’ Read more »

In our earlier posts we determined the horizontal and vertical components of wind load on a `shop’ (here). The horizontal force was/is 500 lb, as acting on an 8-ft wide `swath’ of shop, which is framed with wood trusses at …

Minimum Design Wind Load – ASCE 7-22 Section 28.3.6 (Envelope Procedure) Read more »

Now let’s look at the wind loading on the shop eaves. We ignored them previously, as we were getting `big picture’ wind loads on the building as a whole … or at least an 8-ft `swath’ of building, as a …

Wind Load on Shop Eaves – ASCE 7-22 – Envelope Procedure – MWFRS Read more »

(c) Jeff R. Filler, Pell City, April 2023 In previous examples (here and here) we looked at the horizontal and vertical wind forces on a `shop’. The shop is/was a `pretend’ structure in a real location, Latah County, Idaho. It …

Wind Forces on a House (Compared to a `Shop’) – ASCE 7-22 – MWFRS – Envelope Procedure Read more »

In an earlier example (here) we looked at the total horizontal force acting on an 8-foot `swath’ of a shop building, the idea being that the shop is supported by trusses on posts at 8 foot (ft) on center (o.c.), …

Wind Load on a Shop – Envelope Procedure – Part 3 – Vertical (Uplift) Forces 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 »

Miles asked me to design a truss for his shop.  I grabbed my clipboard.  Wood? Yes.  Rough sawn?  Yes.  Rise/Run?  4/12.  Width?  21 feet.  (Hmmm … I am sketching as we go along.)  Oh, 20.  You mean 20 to center? …

a truss for Miles Read more »