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Message 1 of 7
mhafiz377
290 Views, 6 Replies

sectional area

Hi, 

Can you please look at my model because when I'm designing (checking provided rebar), the message shown as in picture attached. After changing the size for beam which is for beam 2...13 at ground floor until 400x600 is only can pass. It is weird because another beam except beam 14...17 is ok for size 200x400.please help me here...

 

Thanks,

Hafiz

6 REPLIES 6
Message 2 of 7
Rafal.Gaweda
in reply to: mhafiz377

The reason of different reinforcement:

 

res2beams.jpg

 

Required reinforcement example results

 

21213.jpg

 

Shear capacity for this beam \ section (according to EC2)

 (compare with the shear in this beam -> ~750 kN)

 

shearcap.jpg



Rafal Gaweda
Message 3 of 7
mhafiz377
in reply to: Rafal.Gaweda

how to get this dialog box?Capture.JPG

Message 4 of 7
Rafal.Gaweda
in reply to: mhafiz377

THis is screen shot from RC Calculator (Expert). Available on french market year(s) ago.



Rafal Gaweda
Message 5 of 7
mhafiz377
in reply to: Rafal.Gaweda

Then what should I do because beam 2..13 is too big compare to others. 

Message 6 of 7
Rafal.Gaweda
in reply to: mhafiz377

Concrete shear capacity:

 

shearbs.jpg

 

 

so considering this and covers you should use 400x600 beam with C30 material.

 



Rafal Gaweda
Message 7 of 7
Rafal.Gaweda
in reply to: Rafal.Gaweda

BTW: your model may give you wrong results because you have neglected instabilities of type 1 and 2.

You have to correct releases to get rid of instabilities.

I am attaching corrected model  - some releases replaced by my release "fp1"



Rafal Gaweda

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