what is this error?

[sonminkyun]

I modeled the structure.

Shape is perfect figure.
but Brings up the following error:

WARING BandGenLinLapackSolver::solve<> -LAPACK routine returned 949
:
:
:
DirectIntegrationAnalysis::analyze<> - the Algorithm failed at time 0.005
OpenSees > analyze failed, returned : -3 error flag
WARNING BandGenLinLapackSolver :: solve <> -LAPACK routine returned 7
WARNING ModifieNewton :: solveCurrentStep<> -the Linearsysofeqn failed in solve<>

what this error?

[nimatehran]

Dear sonminkyun;

I think that you have an unused node in your model.

thanks
Nima

[sonminkyun]

Dear nimatehran

thanks replay..

um.. You said : (If the) input node 300point but use 299node point in my model.
this mean?

[fmk]

it could mean any of the following:
1) you have a dangling node, i.e. node not connected to anything
2) not enough boundary conditions
3) bad material or element properties

[nimatehran]

Dear sonminkyun

Yes. the answer of Dr. fmk is Worthwhile.

[sonminkyun]

Dear fmk and nimatehran

i checked the node and element
but there is no missing node and element...

I wandered.

[fmk]

well then the problem is 2 or 3.