I'm confused. Any vertical load on the support isn't frictional, its normal to the support.
The load due to thermal expansion of the horizontal run of pipe would be frictional. In the horizontal direction.
Is the 25 kip load due to thermal expansion of the vertical sections of pipe unloading the pipe bridge and transferring the weight of the pipes back to the supports on either side? If so, then whatever the supports end up supporting is the normal force you have to consider for friction.
One...
Hi everyone and thank you in advance, I'm not sure if this question can even be answered.
We often run across steel piles in the marine environment that are experiencing corrosion in the tidal and splash zones. In some cases this has caused the (typically) epoxy coating to rupture or...
The American Wood Council has a great on-line connection calculator at:
http://www.awc.org/calculators/connections/ccstyle.asp
You can use it for lags, bolts, wood screws and nails.
Main member matl (wood) is chosen from a pull down menu, as is side member, which includes steel up to 1/4"...
Can anyone help me with the CA Building Code section that addresses non-retroactivity of structural requirements from newer codes than were used at the time of construction? Or does 3403 cover this question since there is no change in use or occupancy of the facility? We are simply trying to...
Oh, I forgot to mention-- You actually DO want your pile to fail before the hull of the ship in all cases, but especially for a navigation pile.
I was speaking in terms of a very low velocity berthing situation when I said to keep going to a bigger pile until you get the energy you need...
You can always try it this way.
Pick a pile size. Determine the distance from the impact point to the point of fixity for the pile. (Absent geotechnical guidance, say 6 diameters below the mudline, assuming mud.)
Determine the load required to cause failure of the pile and the deflection...
