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Valued Contributor
rioja
Posts: 75
Registered: ‎06-02-2012

RC BEAM deflection

373 Views, 3 Replies
10-09-2012 07:08 AM

Hi artur

Aditionally I have send the optimization calculations for the same beam

Why ARSA gives the error for shear load it is optimizing isn´t?

 

1 and how to limit the deflection for each span

1.1 if I set the deflection in the member type definition,  only the "absolute" deflection is available not the relative

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Product Support
Artur.Kosakowski
Posts: 5,076
Registered: ‎12-17-2010

Re: RC BEAM deflection

10-10-2012 02:24 AM in reply to: rioja

I'm not sure if I understand the situation correctly but my understanding is that:

 

1. You compare elastic deflection of the beam (static analysis of the model) with the cracked one (RC beam design module)

2. In the RC Member required reinforcement you use only ULS cases therefore cracked deflection is not checked



Artur Kosakowski
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Valued Contributor
rioja
Posts: 75
Registered: ‎06-02-2012

Re: RC BEAM deflection

10-11-2012 09:21 AM in reply to: rioja

Artur

Thank for your answer

Yes, I refer me to the elastic deflection, then we can add to the final drawings the estimated deflection due by cracking

 

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Artur.Kosakowski
Posts: 5,076
Registered: ‎12-17-2010

Re: RC BEAM deflection

10-11-2012 11:25 PM in reply to: rioja

I do apologize but I'm not sure what issue should I actually investigate.

 

In short the intended design of RC beam in Robot is:

 

1. Static calculations of the entire model

2. Export of a selected beam to the RC Beam design module

3. Design of the beam with cracked deflection limit in this module

 

In this process there is no estimation of the cracked deflection based on the elastic one as the exact value of the cracked deflection is given by the RC design module. Am I missing something?



Artur Kosakowski
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