Crane stop comes many forms, depends on type of crane involved. The critical one is bumper stop for bridge crane on elevalated runways. Not difficult to check, but difficult to achieve desirable stiffness without stiffen the runway beams/girders. It's a whole package - runway + stop, also need...
Permit, or no permit, just be prudent before dewatering. A leason learned back home:
A 4 story residential in the conjested city setting. A intense rain storm occurred shortly after completion of the basement excavation and flood the open pit. The contractor started to pump the water out with...
I am not aware the process of galvanizing, so colud be wrong.
If a tube is completely sealed by cap and welds, why galvanize the interior? The vent holes are to release the pressure, and the process should be quick enough to avoid significant amount of material from getting inside of the tube...
I think ACI has something on opening around support regions. But judgement could be the most important factor.
Depending on the location, the strips on sides of the opening have to rely on adjacent members to pickup the loads, what is the picking up capacity of those members, what are the local...
Curios mind does not know significance, but it is always the driving force behind wiping out the insignificant values due to our incapability in the past. All science are accumulation of insignificant matters.
No pun intend, just personal feeling, as I truely enjoy this discussion.
It is not necessary correct, but I used to use individual wheel load to calculate traction & thrust. Conservative, but safe.
Note most crane has one driving axile, but some has two. Check with your crane supplier and asking for specific design considerations.
I think Drumchaser was covering the river bank riprap with reinforced concrete, which is quite common at bridge abutment - a perfect homeless shelter:)
Rather than tie into existing structure which can have other complications, why not consider:
1. Seal the cracks and observe.
2. Add a thin layer of light weight topping (after repair).
"Anyway, surrounding with orthogonal and diagonal reinforcement is structurally sound practice that only has the problem of poor constructability, due to excess of rebar around small holes."
I Agree.
Two things to look into:
1. Snow accumulation behind the panel.
2. How fast the snow on panel will melt, any chance for snow accumulation on the panel.
I will take the worst case.
I have revisit my rusty math memory bank, and have to admit I was wrong on concept over "closed form solution". EDR has found it, and StructralEIT was correct to disagree on the claim - "there is no closed form solution...".
My appology to both.
