271828's latest activity

Thanks 217808, I had not seen this article before and have not dug into the canadian standard, but assuming x bar prime is the same as x...

Mike, I stand corrected on this being a hard limit. I agree with your interpretation. In the following article, Packer had a chance to...

I seem to remember a prof once talking about this and I recall him saying something about unexpected eccentricity of load as a concern...

Or intermittent welds? I've done that before.

Assuming Fu = 65 ksi and a 7/16 in. slot width. With 6 in. long welds, I'm getting a tensile rupture design strength of 176 kips. That's...

That's not how this is typically done in AISC. If the connected part has a significant tension, it's checked for tensile rupture. That...

A W18x35 has Ix = 510 in.^4. That is a lot of mm^4 and a tiny number of m^4 ! With USC units, I need scientific notation about twice...

I feel the same. I also use Protonmail for email for that reason, as well. End-to-end encryption is a basic requirement!

Dropbox has had some security issues, so I switched to Sync.com. One architect I know uses Google Drive. The rest seem to use One Drive...

I switched to sync.com also. I'm pretty happy with it. I'm the only person here, so I am the IT/cybersecurity department for my...

I used Dropbox until a couple of years ago. It worked fine. I switched to a end-to-end encrypted cloud. I find OneDrive to be pretty...

Contact Kinetics Noise Control and see if they have any ideas. Spring isolators at the unit will probably be the answer.

Its best to mitigate vibration at the source.

Your best bet would be isolators such as springs below the unit, from an ease of install perspective. Is the floor shaking now?

That was my first thought. If the potentially notched beam is strong enough, I might go for it. Deflection might still be ok or close...