A quick check through, I may be missing something:
First, you have to assume "small deflections". Let x be the angle between force P and the spoke in question.
In that case, the deflection in each spoke will be cos(x) times the deflection in the direction of the force, and the component of...
I've used odd spacings before, nobody seemed to have a problem with it.
On the #8 @ 6"/4", if it gets too close, you can use a double layer each way or bundled bars.
Are you involved in the design of the stack itself? If so, look into vortex-shedding issues that can increase the wind loads or otherwise affect design.
Also watch design temperatures, thermal effects.
I would interpret that wording to mean each part has to be greater than 3/4", not that the sum of the thicknesses is greater than 3/4", so I would say "no".
That could be reworded more clearly.
Ah, the inswing-manway. That is not covered by API-650.
Per AWWA D100, the excess shell plate area and the area in the neck are included in the reinforcing. That style of manway has the neck intentionally built up to furnish full reinforcing area via the neck, without needing a reinforcing...
"N/A, slab only" if you want it specifically just for the pad.
For pad + equipment, maybe "Steel distributed mass cantilever structure" or "Inverted pendulum type structure" (pulling choices off Table 15.4-2 in ASCE 7-16).
An intriguing question. I had not heard of those before.
In the US, watering tanks were usually wooden or riveted steel. I have just always assumed that this usage dated to the very dawn of railways as well.
Googling up some of the Cornish mine engines inevitably shows the engine but not the...
My impression- you are confusing two different effects.
A tube flattens when squished between two flat plates due to applied force.
I think (but can't necessarily prove) that a tube subjected to pure moment would tend to flatten as well, without any applied force.
So when you wrap the tube...
I assume seismic loading is based on treating this as a fixed rigid object.
One of the ASCE short courses I took discussed seismic loading based on a rigid object rocking. Which increases the period and might reduce seismic loading.
Similarly, if the analysis allows for sliding of the...
The heat transfer to both inside and outside surfaces will be due primarily to convection. In figuring convection heat transfer, the driving factor is difference between fluid temperature out away from the surface, and the surface temperature. IE, you do not assume surface temperatures are...
On the "fully fixed at both ends"- what is it fixed to? Normally a tank bottom would be resting on sand, concrete, or pad material, but not fixed to it, either.
The shell and bottom are attached to each other, but there is no mechanism to make them at substantially different temperatures.
If...
If you're in the same location, actually sitting down with them in person as opposed to emailing, etc., might help iron out some stuff.
Some issues are just hard to deal with. At a past workplace, the employers (all non-engineers) viewed engineering as "putting lines on paper". So the more...
For a typical cylindrical tank operating at ambient temperature, there is zero consideration given to these effects. Which is one reason you won't find much in AWWA D10 addressing the issue.
For tanks constructed of two different metals (steel tank with aluminum roof, for example), thermal...
Use the first two equations for the cone. Check top of cone, bottom of cone, places where plate thickness changes and other intermediate points to confirm which locations control.
W and F will both be negative, with loads above the section in question acting down.
Pressure uplift on the roof is...
My brother once worked at a pacemaker company. Very highly regulated, medical field.
The pacemakers came with a wire lead that the surgeon would trim when he installed the pacemaker.
So it didn't much matter how long it was (as long as it was long enough!), but still had to be shown precisely...
If you can get the CAD files, you can fix some of this in dimension styles, etc., assuming drawings are to scale.
One big decision: Are you trying to reproduce the same exact thing either way, or an equivalent item?
Example: screw threads. You can get similar sizes in US and metric, but those...
