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Product Support
Posts: 4,442
Registered: ‎04-26-2010

Re: elevated conical tank:seismic and hydrodynamic loads calculation

01-07-2014 01:25 AM in reply to: REDO10

 

1-Why u've chosen 3 rows of noeds? why not 4 or 5...or simply 1 ?

 

for simplicity, as an example

 

and how can I know the exact level for applying masses?

You should know how you calcaulated masses, from which range.

2- If I chosen to add masses in modal case, should I select more rows too or apply them simply in 1 row ?

 

See above

 

3-  I've enter the values such as you indicated in "masse_eau" case then convert them to masses, but when I launched calculation, this error message appears

 

 

so I've applyed them in modal case, and I obtained the results below, which seem to me wrong, especially the sum of the masses in the modal analysis and the moment along the Y axis and the shear along the X axis in combination case "G+Q+E"

 

File please.

 



Rafal Gaweda
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Active Contributor
REDO10
Posts: 31
Registered: ‎10-22-2011

Re: elevated conical tank:seismic and hydrodynamic loads calculation

01-07-2014 03:57 AM in reply to: Rafal.Gaweda

Hi Rafal,


Rafal.Gaweda wrote:

 

1-Why u've chosen 3 rows of noeds? why not 4 or 5...or simply 1 ?

 

for simplicity, as an example

 

and how can I know the exact level for applying masses?

You should know how you calcaulated masses, from which range.

2- If I chosen to add masses in modal case, should I select more rows too or apply them simply in 1 row ?

 

See above

 

3-  I've enter the values such as you indicated in "masse_eau" case then convert them to masses, but when I launched calculation, this error message appears

 

 

so I've applyed them in modal case, and I obtained the results below, which seem to me wrong, especially the sum of the masses in the modal analysis and the moment along the Y axis and the shear along the X axis in combination case "G+Q+E"

 

File please.

 


My file is attached to my post N°17 in page 2 (elevated_tank_1000)

Thx.

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Product Support
Posts: 4,442
Registered: ‎04-26-2010

Re: elevated conical tank:seismic and hydrodynamic loads calculation

01-07-2014 07:00 AM in reply to: REDO10

My results for model from post 17

 

tank1000.jpg



Rafal Gaweda
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Active Contributor
REDO10
Posts: 31
Registered: ‎10-22-2011

Re: elevated conical tank:seismic and hydrodynamic loads calculation

01-07-2014 10:15 AM in reply to: Rafal.Gaweda

Hi Rafal,

I forgot to enter the mass in the old file you calculate, so pls check this new file where I get error 5000,

question:

should I check disregrad density in modal option?

comment my results pls!

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Product Support
Posts: 4,442
Registered: ‎04-26-2010

Re: elevated conical tank:seismic and hydrodynamic loads calculation

01-08-2014 05:42 AM in reply to: REDO10
Errors because of loads to mass conversion of case 17


Rafal Gaweda
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Product Support
Posts: 4,442
Registered: ‎04-26-2010

Re: elevated conical tank:seismic and hydrodynamic loads calculation

01-08-2014 05:52 AM in reply to: REDO10

correct loads:

 

case17.jpg



Rafal Gaweda
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