please give me a help

[carlota]

dear :
When I analyzed the seismic response of the cable-stayed bridge, the following results appeared.
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WARNING BandGenLinLapackSolver::solve() -factorization failed, matrix singular U(i,i) = 0, i= 106
WARNING NewtonRaphson::solveCurrentStep() -the LinearSysOfEqn failed in solve()
StaticAnalysis::analyze() - the Algorithm failed at iteration: 0 with domain at load factor 0.1
OpenSees > analyze failed, returned: -3 error flag
static over
ArpackSolver::Error with _saupd info = -1
N must be positive.
WARNING DirectIntegrationAnalysis::eigen() - EigenSOE failed in solve()
T1 = Inf s
T2 = 6.283185307179586 s
DynamicCharacteristics over
FATAL BandGenLinSOE::getX - vectX == 0!

############################################################
I hope someone could give me some suggestions, thank you very much.

[mhscott]

https://portwooddigital.com/2021/11/22/cable-analysis/

[carlota]

https://portwooddigital.com/2021/11/22/cable-analysis/

Thanks a lot, this is very inspiring for me