RC cantilever beam Very Important

[Anonymous]

Which of These Cases will move the load correctlly to the other beam considering that theres no column under the connection between them? and how can i verify ?

[Artur.Kosakowski]

The design of RC beams is based on the results obtained for the model itself which means that regardless of the decision on locations of supports you make during the export of a beam from a model to the RC Beam design module you will have the same bending and shear forces. The decision on the supports is for reinforcement distribution and you need to make your mind on this (you may e.g. decide that each of the beam supports the other or both are cantilevers - e.g. imagine a situation when you have two identical beams with the same load applied forming an L shape having one common node and fixed supports in the outer nodes). For the situation as on your picture I would probably select schemes 1 and 4. 

[Anonymous]

ok Good, im with you that the bending will be the same .
But as a reinforcement if i choose 1 and 4 thats mean the program will deal with them as cantilever and the top steel will be increased at each of them . while on real life it will be one supported to the other which will reflect on the steel as the one will be carried the main steel will be at the bottom but for the other on the main will be at the top .
am i right?!!

[Artur.Kosakowski · Accepted solution]

I'm sorry. I meant 1 and 2. 

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[Anonymous]

or 3 and 4 right , I just want to confirm the concept in my mind

[Artur.Kosakowski]

or 1 and 4 for the L beams ararngement I described (which is why I typed 4 instead of 2) 

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[Anonymous]

I was trying to get the same results for L beam in rc beam but its showed i need to have some kind of support on the lose end. How to fix this problem ??

[Artur.Kosakowski]

Hi @Anonymous 

Could you attach a screen capture showing the actual situation?

[Anonymous]

The mistake was mine i didnt made right supports. Can you tell me if I used correct supports

[Artur.Kosakowski]

Hi @Anonymous 

If you consider both beams acting like cantilevers then it is correct however personally I'd not use offsets.

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