Hi guys, I want to ask your opinion.
I got an offer as a structural engineer in a small company. They only recruit one person and don't have any senior structure engineers or even junior structure engineers in their company. So, I will work alone there. They said they only do small buildings...
>Just for information, using the info in the spreadsheet, I calculated f1, f2 and f3 as 23.56 Hz, 69.63 Hz and 138.73 Hz.
Which equation did you use, sir?
I have figured out the unit error. I made an Excel, I attached it below here. Maybe someone is curious and it could help someone in the future.
I found the source of the equation. The equation is by Stokey. The parameter k value I asked for was not effective length value (k). It was kl value...
I tried to write my problem out. Here take a look please :Dhttps://files.engineering.com/getfile.aspx?folder=0e4ab28d-e997-4d32-b5de-a3552de6e0f8&file=photo_2023-05-22_10-58-43.jpg
I have a column clamped at the bottom and for the top, I use hinged BC but free at the Y axis. I need to calculate its natural frequency at the 1st, 2nd, and 3rd mode shapes. I did calculate it with the FEA program but I need to calculate it manually too. I found in a paper the natural freq...
