## Robot Structural Analysis

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# Mode Shape X & Y components of Center of Diaphragm

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Hi,

I'm using Robot for a 63 story building. My Boss ask me to generate the X and Y components of the Mode Shape displacement (unitless) for every floor similar to the attached table from ETABS. Can we do it in Robot? This data wil be used for wind tunnel test. Thanks

Kind Regards,

Jan

Solved! Go to Solution.

# Re: Mode Shape X & Y components of Center of Diaphragm

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Not for a floor = center of diaphragm; for real nodes only , you an get them in Modal Analysis Results table

**Rafal Gaweda**

# Re: Mode Shape X & Y components of Center of Diaphragm

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Thanks, I found it.

# Re: Mode Shape X & Y components of Center of Diaphragm

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Hi Dian021 ,I had the same problem but i could not find the result as you found.Can you show me where is it in the Robot program or just post some picture of it.

Thank regard !!

This is the result i hae in Etabs but I can't find it In Robot .Please help !

# Re: Mode Shape X & Y components of Center of Diaphragm

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hello rafal

please attach a picture for this your answer....thanks

# Re: Mode Shape X & Y components of Center of Diaphragm

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**Rafal Gaweda**

# Re: Mode Shape X & Y components of Center of Diaphragm

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The displacement values of any node of the structure corresponding to a given eigenshape can be viewed when choosing the option “Deformations” in the “Diagrams for buildings” (see attached). They should also be displayed in a table form.

Keep in mind that the values that are viewed with the above option are the total ones (i.e the square root of the sum of squares of each component) and that they are not normalized to 1.

# Re: Mode Shape X & Y components of Center of Diaphragm

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Thank Rafal ,Tuctas for answer

I am sorry for my question but when i try to follow your post it does not happen as you said .I use RSAP 2011.And the value of Eigenvector in modal analysis table are all node of modal,it hard for me to find the value i need as Etab.Sorry for my English

Many thanks!

my modal

# Re: Mode Shape X & Y components of Center of Diaphragm

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This is my modal

# Re: Mode Shape X & Y components of Center of Diaphragm

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Every node belonging to each diaphragm in your model will have the same UX UY so take any of them: http://screencast.com/t/47Nmw6Ti

**Rafal Gaweda**