SLS Check (Deflection and Crack)

SLS Check (Deflection and Crack)

TienDat.NGUYEN.Engineer
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Message 1 of 9

SLS Check (Deflection and Crack)

TienDat.NGUYEN.Engineer
Advocate
Advocate

Can anyone know how module Robot in panel calculation can calculate the reinforcement only ? I use the Panel module but the result for crack and deflection is nothing.

I don't know is there any thing missing in my calculation.

tiendat171093_2-1634902236162.png

tiendat171093_3-1634902254314.png

tiendat171093_4-1634902280627.png

tiendat171093_6-1634902318596.png

 

In this case only the flexural reinforcement is shown:

tiendat171093_8-1634902389719.png

But the crack and deflection is none ?

tiendat171093_9-1634902408465.png

 

tiendat171093_10-1634902428996.png

 

 

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1,742 Views
8 Replies
Replies (8)
Message 2 of 9

Krzysztof_Wasik
Autodesk Support
Autodesk Support

Hi @TienDat.NGUYEN.Engineer 

Have you defined SLS combinations? Deflections and Cracks are calculated when SLS combinations are selected for verification. Share zipped RTD file for verification.



Krzysztof Wasik
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Message 3 of 9

TienDat.NGUYEN.Engineer
Advocate
Advocate

Dear @Krzysztof_Wasik ,

 

Yes I have defined the SLS combination (201), and both ULS (101) & SLS (201) is defined in the calculation of panel as shown in below:

 

tiendat171093_0-1634956706314.png

tiendat171093_3-1634956902172.png

 

But only the value in ULS show the results, for SLS it will appear this error message and the value is zero for all.

I also attach the model Robot, if possible could you please help me to check this point, thank you in advance for your help.

tiendat171093_1-1634956808947.png  tiendat171093_2-1634956841310.png

 

 

 

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Message 4 of 9

Romanich
Mentor
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Hi @TienDat.NGUYEN.Engineer ,

 

You should assign correct SLS type:

Romanich_0-1634963421091.png

Or in the table:

Romanich_1-1634963540696.png

 

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Roman Zhelezniak

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Message 5 of 9

TienDat.NGUYEN.Engineer
Advocate
Advocate

Dear @Romanich ,

 

I have tried to change to SLS-Quasi permanent but the result is still zero the same as below.

Did you check on the model on your side ? Does it have the result ? Thanks in advance

tiendat171093_0-1634978579990.pngtiendat171093_1-1634978601138.png

 

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Message 6 of 9

Romanich
Mentor
Mentor
Accepted solution

Hi @TienDat.NGUYEN.Engineer ,

 

Maybe the reason is that you have a span 1.1 m and 200 mm slab thickness. For example, I have applied supports to have the bigger span:

Romanich_0-1634979582679.pngRomanich_1-1634979604333.png

 

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Roman Zhelezniak

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Message 7 of 9

TienDat.NGUYEN.Engineer
Advocate
Advocate

Dear @Romanich ,

 

I think so, I try like you proposed and they have the result but not same as you. And for crack width still has no result

Could you please upload the modified model ? I can study on this one.

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Message 8 of 9

Romanich
Mentor
Mentor

Hi @TienDat.NGUYEN.Engineer ,

Romanich_0-1634988489902.png

Model attached (Robot 2022)

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Roman Zhelezniak

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Message 9 of 9

Krzysztof_Wasik
Autodesk Support
Autodesk Support

Hi @TienDat.NGUYEN.Engineer 

You have too small loads to obtain cracks for defined slab geometry and loads. Cracks appears when you increase loads in your model. I have increasd live loads to 150 kN/m2. Then X- cracks are 0.2 mm.

 



Krzysztof Wasik
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