Statics 6.73 - Determine the reactions at the supports at A, E and B of the compound beam.

[@pirate1367]

Hey, but it doesn't make sense when we analyse the moment at A for AC.

[@Mostafa.Koriem]

Thank you for this very informative video!

[@hussain901]

The pin at B is two force member right? Like in CD THAT'S Why you worte the reaction is By

[@alondrarivera6153]

Hi, thank you for your videos. I have a question, why do we not include Bx as a reaction? I thought it was a pin. Is it a weightless link then? Thank you in advance!

[@LearningbyTeaching]

Hello, if we look at the figure the at B there is a link attached to it. So similarly to what we did for the link CD, we disconnect this link at B and replacing it with a force that is in the line of action of the link. In this case this link was totally vertical and that's why only By is included. I hope this clarifies your question!

[@alexandersadigursky1240]

why not component for Cy and Dy

[@f006]

Why we did not calculate the shear forces for point c?

[@LearningbyTeaching]

Hi, the question did not ask for the forces at point C. :)

[@riiru33]

@@LearningbyTeachingShouldnt there be shear forces when internal forces are exposed even if it's not being asked?

[@holamaful1]

hi, how would you do the shear diagram and bending moment for this exercise?

[@LearningbyTeaching]

Hello Marcel, sadly I will be really busy this last part of Fall2021 semester. But you could guide yourself by one of my shear and bending diagrams videos: 1 - kzbin.info/www/bejne/m53RqIJ7ect_f80&ab_channel=LearningbyTeaching 2 - kzbin.info/www/bejne/opDOmYJmgrF6gbM&ab_channel=LearningbyTeaching 3 - kzbin.info/www/bejne/gafTlpeOeNiDnpY&ab_channel=LearningbyTeaching 4 - kzbin.info/www/bejne/nJitmKGDeqiEsMU&ab_channel=LearningbyTeaching

[@holamaful1]

@@LearningbyTeaching Perfect! Thanks for the help

[@hussain901]

Hi , isn't point B pin conectd that means there's Bx and By right? So where is Bx Thanks alot.

[@BG-uf8kh]

no need. there is no horizontal forces

[@keifalasawie6450]

Good

[@treesquirrel3995]

Why are you neglecting to include the vertical component forces at C and D in the free body diagrams? Why are you zeroing the component forces at these points. Despite it not asking for them they still exist and can't exactly be ignored.

[@bruvocado]

The whole class is currently copying from this

[@lazuli9381]

Too small to see

[@LearningbyTeaching]

Hello, thanks for the comment. I will try to write bigger for following problems!