Engineering Center

Does covering the fire caulk joint in a rated wall assembly with drywall joint tape affect the rating of the fire caulking?

Need to anchor a pipe bracket into a brick veneer wall with CMU behind it. Not sure if the CMU block is core filled or hollow

When supplementary reinforcement is to take up tension loads only, according to EN 1992-4, NRd,c is not included in the design resistance checking. HILTI PROFIS seems still checking Concrete failure, βN and βV. My question is, how is the βN calculated? 𝑁𝑅𝑑,𝑐 - design resistance in case of concrete cone failure under tensio...

When do I get the quiz?

Hi there, we need to drill & epoxy #4 rebar, 5 embedment, into an existing grouted CMU wall. What size drill bit would be best for drilling and what type of epoxy adhesive is required? We also have to drill & epoxy a handful of #5 rebar,6 embedment, into an existing concrete floor. Again, what drill bit size is recommended and...

Please provide the strength in f'=5000 psi

First of all, we exclusively use Profis for anchor design in our office and it is an invaluable tool for us. However, I recently noticed you added the ability to adjust the shear load distribution in Profis (which is great), but it does not seem to work for me. When I do a test of a simple 4-anchor CIP anchor bolt connection...

Why do I get this message while designing the Base plate connection? Attached a snippet from the configuration as below and the .Pe file. appreciate your prompt feedback.

I have some lightly loaded anchors (1000 lbs in tension) that I would like to install in an adhesive into an existing concrete beam. The wall that I am installing into is a 100 year old exterior wall with 9 (nominal) roughened limestone that is solid with a 10 thick (minimum) concrete beam. The anchors that I am inquiring abou...

we have a building that is 21 years old and the fire caulk is falling out