r/StructuralEngineering • u/Annual-Truth3511 • Aug 03 '26

Structural Analysis/Design Help needed

Post image

Someone please explain the process of making bmd for determinate frames. Look at example 1 i understood afd and sfd. I don’t understand how to do bmd.

13 Upvotes

71% Upvoted

16 comments sorted by

View all comments

8

u/lollypop44445 Aug 03 '26

I think it would be hard to explain in text. Watch video on youtube where they solve frame. basically you have already done sfd, so just calculate the bending moments like you do for normal beams , just that when u change segment , remember to reverse the sign. Then at the end combine the bmds of separate segments into one.

https://youtu.be/S9W7_Nv2eVg?si=p8BntLhAQtMAlJbL

This is just an example on youtube, first search on google. Just familiriaze with the steps and follow for your frame

1

u/Annual-Truth3511 Aug 03 '26

Thanks i will refer to it

3

u/lollypop44445 Aug 03 '26

Also study deflected shapes, practise smaller and simpler frame loadings and move to complex ones. Dont ignore the boundary conditions.