Recent content by BUGGAR

Tell their Engineer that the transformer vibrates.

Your energy absorption will be primarily elastic, then go plastic as failure occurs. You will need force-distance curves for each resisting element (difficult to derive) and will then have to find the reactions for the combined elastic/plastic system.

Check with the Engineer before you change his stuff.

By mining tunelling, do you mean tunelling for material extraction or for roads and such?

I would argue that the specific placement and strength of these things was intended, and that they did their job well. Otherwise, they're just plain ugly and out of place!

Why don't we ask the fabricator?

The cuts in Electric baseplates are for drainage. They nut both sides of the plate and stand the plates off with no grout. I believe only Sparky's do this.

Did everybody get a chance to sample the new Risa before they had to buy in (subscribe)?

And then there is strain hardening.

Depends on the cement content. Find the original specs.

We do that in seismic design.

A car does not roll about its "roll center". See my other posts.

I thought it was common to hold back some of the design water to allow tempering on site. The truck ticket has to say how much was held back. This should be covered in the specs.

Explosive bolts.

Without asking who the company is, It sounds like they are trying to break into the U.S. underground market. In California? The U.S. tunneling industry is generally made up of a few select contractors who can joint venture for the big jobs. Do you know the company's target market? I started...