English - Simple Frame Analysis (1 of 2)

Drawing normal force, shear force, and bending moment diagram for a simple frame

#Engineering
#civil_engineering
#structuralengineering
#structural_engineering
#هندسة_مدنية
#تحليل_إنشائي

[CTSCIVIL]

To be honest, in analyzing frames, you cannot go easier than that :)
I will try to think of some example easier and let you know.
Thanks for your comment.

[CTSCIVIL]

in general normal forces are the axial forces. They cannot be given a direction (x, y, or z) because it depends on the member orientation. for a member as AB in this video the force 3kN that acts along the axis AB is an axial force where when transferred to member DE it will not be considered as an axial force anymore.

Hope that helps

[Sheerbachajan]

ya habibi shokran for the very informative video. I learnt more from you than my professor!!!

[binladin]

Thank you so much, this was so helpful...I might have to come back often and check out all of your videos. Thanks!

[CTSCIVIL]

Abdelrahman,
in general, we select the place to take the cut section if we are interested in knowing a value for an interior component (like normal force, shear force, bending moment) of a beam (or column). it is equally important that you know how to represent these internal forces in a way that they make sense to look at or to solve for.
thanks for stopping by

[CTSCIVIL]

when the force acts perpendicular/transverse to the members axis, that means the force "shears" that member then it is called shear force. if the force acts along the axis of the member then it is called axial/normal force.
for frame problems, a shear force from one member can be considered an axial/normal force on the other.
I hope that was clear enough. :)

[zedcbu]

very good ..thank you so much, for sharing much appreciated!

[serenaucsc]

This is absolutely wonderful. Thank You. Can you please post more structural analysis topics if you have time ?

[mechporn]

ما شاء الله  ااحسنت اخي الكريم... ابداع في ايصال الفكرة

[anilupreti]

thanx man, , this viedio is relly awesom

[CTSCIVIL]

@edd9139 if you are only concerned with the BMD then YES. All you need to do is draw it opposite to what I did. Remember, it is a sign convention. as long as you know the positive moment from the negative moment you are OK. This knowledge is crucial when designing concrete structure (for example) so you know were your reinforcement will go.
Hope I answered your question.
CTSCIVIL

[CTSCIVIL]

@edd9139
Thanks for your kind words :)

[ArminXtosis]

Why are you calling them shear forces? For example when you were analysing member EF you called the force "Ve" as a shear force when it is acting perpendicular to the member.

Thanks a million in advance.
Your work is highly appreciated.

[jkeeez]

nice one... but you should start with a short and easy example, which is more convenient for students who are new to structure... like me!

[farookali]

ASSALAMOALAIKUM rbt.
I have a doubt if I am not wrong.
Pls.explain me about joint D. As what i remember sum of moments at a joint MUST be equal to zero i.e
Clockwise equal to anticlockwise
Thxs.

[CTSCIVIL]

@canufeeltheheat121
Both are correct. As long as you stick with one the entire problem. DO NOT MIX AND MATCH.
Yours
CTSCIVIL

[AbdelrahmanMohamed-qvfb]

I can't seem to understand according to what do we take our cut section?
Thanks in advance

[mohammedsalman]

ما شاء الله y explain well
but i want to now the castigliano's method and
sfd and bmd digram for propped cantilever beam loaded for t section

[CTSCIVIL]

Sorry for the late reply
thanks for your kindness

[saru]

Why is the shear diagram in the member EF negative ?