Hello all:
The building measures 30' x 40'. It has a basement with a dirt floor and barely 6ft headroom. The foundation walls are stone masonry, 2ft thick. The foundation walls are founded at the same elev as the bsmt floor, so the walls are only 6 feet high. The backfill outside the wall...
The other day, my client asked me to comment on a structural beam in his newly-purchased, older building. He was concerned that it looked too small and was deflecting considerably. It was 2 years old.
At that point there was no knowledge as to who designed it. It was suggested that no one...
When providing lateral bracing for a crane beam (under-riding hoist), which is best?
1. a channel welded to the compression (top) flange with legs down, or
2. horizontal bracing at appropriate points.
Hello all:
When designing a beam to support a crane (the crane is suspended from the bottom flange of the beam), what is the best way to provide lateral bracing to the compression (top)flange:
a channel shape, legs down, welded to the top flange?
or horizontal braces at appropriate points?
Hello all.
For background please see weld puzzler thread.
Much has been written on the effects of dynamic loads on various welded configurations. It seems the configuration for my problem is the worst type when it comes to fatigue capacity. (A fillet weld across a bending member.)
Also...
Hello.
I have a 20" pipe, 30' long, 1" wall, for use in some industrial process equipment. While the pipe is rotating, heavy process material is dropped on it, normal to the major axis. Loads are substantial and shock/impact applied. The rotating pipe is subject to significant...
