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One other thing to mention as well. The AISC tables for bolted-bolted connections don't include tabulated values for angle thickness, effects on copes, etc. They simply only have tabulations for bolt eccentricity considerations. Does anyone know if these have been tested and it has been...

No worries Canpro. Thank you for the article, that was very helpful. Reading through the article would suggest that torsion should be considered; however, with non-extended configurations the torsion does not need to be considered. In the case of a single shear tab the torsion is quite...

Thank you all for your feedback. CANPRO, the top and bottom flanges need to be coped to allow for clearance past the flanges of the supporting member. Either way it would seem that the general consensus is that torsion is not be considered in the coped section of the beam.

Hello, I am designing single angle connections that are both bolted-bolted, or bolted-welded. The supported members are often coped at the top and bottom flanges. As such, is it is your opinion that torsion should be considered on the remaining coped section (effectively a thin rectangle)...

Thank you for the advice, greatly appreciated!

Thank you for the advice. Thankfully the holes don't need to be elongated by a great distance, only about 2-4mm. However, there are multiple holes that need to be completed. Thanks again!

You are correct, the slot would not encroach on the bulb portion. Possibly the punch is the best option. Thank you very much for your input.

I believe we could clamp something to the seal to stiffen it. See attached for a shape of the seal. The seal is 102mm long and is 14.2mm thick. The slots will run in and out of the page when looking at the sketch. I do not know the dimension from the edge of the seal to the center of the...

Thank you for the advice. A slotting punch may be possible, however, we would have to find one that would work with the seal geometry. Freezing it may also be difficult as this will be done in the field with above freezing temperatures. When you say that a die grinder is not ideal, why...

I am working on a project where we need to field drill slotted holes in a rubber gate seal. The rubber has a durometer harness of 60 to 70. Currently, round holes exist in the rubber seal which are used for retaining to the structure. In order for fit up, we need to slot the holes by...

Information from the homeowner would suggest that the upper section was lifted. The thought is that forces from frost "jacking" caused the upper section to lift. The pitless adapter was a clamp on style that utilized two clamps to hold it to the well casing. The upper clamp was located...

Hello, I am analyzing a situation where a pitless adapter was installed directly on a threaded seam of a PVC well casing. Silt and other small debris was noticed fairly recently after the installation. Two years following the installation, the area around the well caved in at which point the...

Nescius, we actually measured the bend when it was out of service and the stem was removed from the gate structure. Thanks again to you all!

Thank you all for your input. The measurement was taken via a string line where it was observed that the stem is bent 1/16" so it was able to be notice. The other stem used in the gate was checked as well and it exhibited no bed at all, so the bend is noticeable.

cvg - thank you for the information. It would appear then that we are pushing the boundaries of acceptable tolerance. The image you have include is very similar to what we have, except we have a tandem stem system with a cross shaft like the picture below. I believe we will suggest to have...

Thank you both for the prompt responses. The stem is 2.5 inches in diameter and is 164 inches long. The gate is about 20' wide by 6' high and is raised via a tandem stem method. One of the stems is straight with the other one exhibiting the bend as discussed. The stem is actually bent...

Hi there, I have a question about a bent gate stem used in the operation of a dam gate structure. The stem is threaded stainless steel and is raised a lowered via a geared system. One of the stems is out-of-plumb by approximately 1/16 of an inch. My question is will this bend affect the...

Thank you. Do you have any reference for that, particularly with stainless steel?

Annealed

Hello, We have a roof for a tank formed from stainless steel 316. The plate is 1/4" thick. My question is what bending radius is recommended when bending parallel to the rolling direction? This will be cold formed. Further, is there any reference information for this matter? Thanks.