Error in covergence while doing pushover analysis

[aenils]

T1 = 2.5392083732333877 s
T2 = 0.8301175305632671 s
Model Built
Running Pushover...
WARNING: CTestNormUnbalance::test() - failed to converge
after: 4000 iterations
NewtnRaphson::solveCurrentStep() -the ConvergenceTest object failed in test()
StaticAnalysis::analyze() - the Algorithm failed at iteration: 428 with domain a
t load factor 0.032777
OpenSees > analyze failed, returned: -3 error flag
Pushover complete
OpenSees >

Let me know how this can be solved ASAP

[fmk]

do stuff in the script to get past the problem point. have a look at the analysyis in his script:

http://opensees.berkeley.edu/wiki/index ... r_Analysis

[aenils]

Thank you very much

when I increase the load in the leaning column during nonlinear pushover analysis why does the base shear too increases? Shouldn't base shear be same whatever load we applied in the leaning column during pushover analysis?
I appreciate your reply

[fmk]

you need to do a little research .. the lateral load applied is P*Delta/L .. so the bigger the Delta the bigger the load.