The 100-Year Flood!
So, what is the probability that we will experience a 100-year flood next year? … in the `next 100 years’? Glad you asked. Next year? … 1/100 or 1% chance. Next 100 years? … see … here
So, what is the probability that we will experience a 100-year flood next year? … in the `next 100 years’? Glad you asked. Next year? … 1/100 or 1% chance. Next 100 years? … see … here
What Causes a Stream or River to `Meander’? (First) Hydraulic Equilibrium. Let’s think about a river that flows into the ocean. But the same could be said for a river entering a lake, or some other feature that `fixes’ the …
On Sediment Transport – Lane – `I love it!’ Lane (citation) gave us a fantastic, and fantastically simple, `equation’ (relationship) for sediment transport in a river. It goes something like this: river flow (quantity, Q) and stream slope (or steepness, …
Keys to Successfully Obtaining a Code Evaluation Report (c) Jeff R. Filler, Pell City, Alabama October 2021 A code evaluation report is a report published by an evaluation agency stating that (and how) a building product (or building method or …
Keys to Successfully Obtaining a Code Evaluation Report Read more »
Rafter Bearing and Anchorage … So, of course, the rafters need to `bear’ on (be supported by) something. For Linda’s Goat Barn the rafters will rest on `headers’. The design of the barn, remember, is `pole barn’, e.g., rafters supported …
As an engineer I tend to design structures from the top down. First the roof loads, which determine rafters, or trusses, or whatever roof framing members. Then the beams/headers/girders supporting the rafters, then the columns or walls supporting the headers, …
on headroom (c) Jeff R. Filler, 2021 … last year I built a chicken `palace’ (huge coop) for my wife, actually for her chickens. I made sure I found out how high she wanted the roof. It would slope downward, …
Jeff R. Filler, (c) 2021 The dead weight deflection of a beam, rafter, etc. is the amount the beam deflects, bends, sags, due to the `dead weight’ of the things it is carrying, including itself. Going back to the example …
… now for `deflection’ … So far we’ve been dodging the `deflection’ issue. `Deflection’ of a beam, rafter, girder, header … is how much the beam `bows’, or bends. For a beam or rafter supported at it’s ends, the deflection …