The OpenSees Community

Hi all
i known the Gravity load is applied in 2-dimensional model ,by applying force in the node . And my question is that: How to apply gravity load in 3-dimensional model with " Birck8N" or "elasticBeamColumn". and , could you give me some example files.

vesna wrote:
> Quad element can be only used in 2D and it has 2 dofs per node.

thank you

Hi all:

When use the bick8N element, and i got this error: " has differinf number of DOFs at it node". what the reason. please help!

Hi all:
I use a Quad element , and ndm :3 ndf: 6 , but the Opensees give this warning: the model dimensions and/or node DOF not compatible with Quade element.
my question is : can Quad element be used in 3-dimensional?

fmk wrote: > when you add/remove nodes, elements, constraints to/from the model the > domain is flagged as hacvng changed and the analysis re-initializes itself > to take this into account. the state of the other elements in the model > does not change. > > when adding elements most (NOT ALLl) eleme...

Could you tell me that how to OpenSees consider the elenment with birth and dead capacity? I Want to use Opensees to simulate the construction process of bridge .
Thanks very much!

[quote="fmk"]i personally do not .. i do not know what others are up to[/quote]

Thanks!

[quote="fmk"]none of materials yet account for it.[/quote]

Thanks very much for your reply. Do you hanve a plan to develop the material.

Excuse me!
Could you tell me that if OpenSees has considered the shrinkage and Creep of Concrete. and if considered, would you support me some relevant imformations. Thanks Verymuch!!

I want to do some rearch about element birth and death in opensees.
I 'd apprieciate if some one give me some exampels or materials about it.