3D Model of one floor RC frame:

[kmegal01]

I have prepared the input file for a one floor reinforced concrete frame (3d model) and I run the analysis only with gravity loads and it fails. The messages I get are the following:

WARNING BandGenLinLapackSolver: solve () - LAPACK routine returned 4
WANRING 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

I attach the input file for your better information. Could you give me any advice in order to avoid these messages and get it done correctly?

Thank you very much for your help in advance!

#Structure A (KN/m/tn)

model BasicBuilder -ndm 3 -ndf 6

#Nodes

node 1 0.00 0.00 0.00
node 2 0.00 0.00 2.60
node 3 0.00 0.00 2.80
node 4 0.00 0.10 2.80
node 5 0.10 0.00 2.80
node 6 0.00 3.30 0.00
node 7 0.00 3.30 2.60
node 8 0.00 3.30 2.80
node 9 0.00 3.20 2.80
node 10 0.10 3.30 2.80
node 11 1.90 0.00 2.80
node 12 1.90 3.30 2.80
node 13 2.85 1.65 2.80
node 14 3.80 3.30 0.00
node 15 3.80 3.30 2.60
node 16 3.80 3.30 2.80
node 17 3.70 3.30 2.80
node 18 3.80 3.20 2.80
node 19 3.80 0.00 0.00
node 20 3.80 0.00 2.60
node 21 3.80 0.00 2.80
node 22 3.70 0.00 2.80
node 23 3.80 0.10 2.80
node 24 0.00 0.00 0.00
node 25 0.00 3.30 0.00
node 26 3.80 3.30 0.00
node 27 3.80 0.00 0.00
node 28 0.00 0.30 2.80
node 29 0.00 1.10 2.80
node 30 0.00 2.20 2.80
node 31 0.00 3.00 2.80
node 32 3.80 3.00 2.80
node 33 3.80 2.20 2.80
node 34 3.80 1.10 2.80
node 35 3.80 0.30 2.80
node 36 0.30 3.30 2.80
node 37 1.10 3.30 2.80
node 38 2.70 3.30 2.80
node 39 3.50 3.30 2.80
node 40 0.30 0.00 2.80
node 41 1.10 0.00 2.80
node 42 2.70 0.00 2.80
node 43 3.50 0.00 2.80


#Masses

mass 13 10.8 10.8 0.0 0.0 0.0 11.565

#Restraints

fix 1 1 1 1 1 1 1
fix 6 1 1 1 1 1 1
fix 14 1 1 1 1 1 1
fix 19 1 1 1 1 1 1
fix 13 0 0 1 1 1 0

#Diaphragms

rigidDiaphragm 3 13 11 12 16 17 18 21 22 23

#geometric transformations

#columns

geomTransf PDelta 1 -1 0 0

#beams

geomTransf Linear 2 0 0 1

#Materials

#Steel Reinforcement
uniaxialMaterial Steel02 1 500000 200000000 0.0 20 0.925 0.15
#Column Confined Core
uniaxialMaterial Concrete01 2 -26646 -0.0027 -22649 -0.0083
#Concrete Cover
uniaxialMaterial Concrete01 3 -25000 -0.002 -21250 -0.004
#Beam Confined Core F8/20
uniaxialMaterial Concrete01 4 -26336 -0.0025 -22386 -0.0074
#Tortional Stiffness of the columns
uniaxialMaterial Elastic 5 3166.67
# Tortional Stiffness of the beam without slab
uniaxialMaterial Elastic 6 15833.33
# Tortional Stiffness of the beam with slab
uniaxialMaterial Elastic 7 81678.69
# reinforcement pull-out for columns near slab
uniaxialMaterial Hysteretic 8 24.519 0.0027 28.549 0.0069 -24.519 -0.0027 -28.549 -0.0069 0 0 0 0
# reinforcement pull-out for columns near void
uniaxialMaterial Hysteretic 9 20.943 0.0026 25.008 0.0073 -20.943 -0.0026 -25.008 -0.0073 0 0 0 0
#Beam Confined Core F8/10
uniaxialMaterial Concrete01 10 -32427 -0.0049 -27563 -0.024


#define sections

#Column Section

section Fiber 1 {

#Concrete Cover

fiber 0.095 0.095 0.0001 3
fiber 0.095 0.085 0.0001 3
fiber 0.095 0.075 0.0001 3
fiber 0.095 0.065 0.0001 3
fiber 0.095 0.055 0.0001 3
fiber 0.095 0.045 0.0001 3
fiber 0.095 0.035 0.0001 3
fiber 0.095 0.025 0.0001 3
fiber 0.095 0.015 0.0001 3
fiber 0.095 0.005 0.0001 3
fiber 0.095 -0.005 0.0001 3
fiber 0.095 -0.015 0.0001 3
fiber 0.095 -0.025 0.0001 3
fiber 0.095 -0.035 0.0001 3
fiber 0.095 -0.045 0.0001 3
fiber 0.095 -0.055 0.0001 3
fiber 0.095 -0.065 0.0001 3
fiber 0.095 -0.075 0.0001 3
fiber 0.095 -0.085 0.0001 3
fiber 0.095 -0.095 0.0001 3
fiber 0.085 -0.095 0.0001 3
fiber 0.075 -0.095 0.0001 3
fiber 0.065 -0.095 0.0001 3
fiber 0.055 -0.095 0.0001 3
fiber 0.045 -0.095 0.0001 3
fiber 0.035 -0.095 0.0001 3
fiber 0.025 -0.095 0.0001 3
fiber 0.015 -0.095 0.0001 3
fiber 0.005 -0.095 0.0001 3
fiber -0.005 -0.095 0.0001 3
fiber -0.015 -0.095 0.0001 3
fiber -0.025 -0.095 0.0001 3
fiber -0.035 -0.095 0.0001 3
fiber -0.045 -0.095 0.0001 3
fiber -0.055 -0.095 0.0001 3
fiber -0.065 -0.095 0.0001 3
fiber -0.075 -0.095 0.0001 3
fiber -0.085 -0.095 0.0001 3
fiber -0.095 -0.095 0.0001 3
fiber -0.095 -0.085 0.0001 3
fiber -0.095 -0.075 0.0001 3
fiber -0.095 -0.065 0.0001 3
fiber -0.095 -0.055 0.0001 3
fiber -0.095 -0.045 0.0001 3
fiber -0.095 -0.045 0.0001 3
fiber -0.095 -0.035 0.0001 3
fiber -0.095 -0.025 0.0001 3
fiber -0.095 -0.015 0.0001 3
fiber -0.095 -0.005 0.0001 3
fiber -0.095 0.005 0.0001 3
fiber -0.095 0.015 0.0001 3
fiber -0.095 0.025 0.0001 3
fiber -0.095 0.035 0.0001 3
fiber -0.095 0.045 0.0001 3
fiber -0.095 0.055 0.0001 3
fiber -0.095 0.065 0.0001 3
fiber -0.095 0.075 0.0001 3
fiber -0.095 0.085 0.0001 3
fiber -0.095 0.095 0.0001 3
fiber -0.085 0.095 0.0001 3
fiber -0.075 0.095 0.0001 3
fiber -0.065 0.095 0.0001 3
fiber -0.055 0.095 0.0001 3
fiber -0.045 0.095 0.0001 3
fiber -0.035 0.095 0.0001 3
fiber -0.025 0.095 0.0001 3
fiber -0.015 0.095 0.0001 3
fiber -0.005 0.095 0.0001 3
fiber 0.005 0.095 0.0001 3
fiber 0.015 0.095 0.0001 3
fiber 0.025 0.095 0.0001 3
fiber 0.035 0.095 0.0001 3
fiber 0.045 0.095 0.0001 3
fiber 0.055 0.095 0.0001 3
fiber 0.065 0.095 0.0001 3
fiber 0.075 0.095 0.0001 3
fiber 0.085 0.095 0.0001 3

#Concrete Core

fiber 0.0675 0.0675 0.002 2
fiber 0.0675 0.0225 0.002 2
fiber 0.0675 -0.0225 0.002 2
fiber 0.0675 -0.0675 0.002 2
fiber 0.0225 0.0675 0.002 2
fiber 0.0225 0.0225 0.002 2
fiber 0.0225 -0.0225 0.002 2
fiber 0.0225 -0.0675 0.002 2
fiber -0.0225 0.0675 0.002 2
fiber -0.0225 0.0225 0.002 2
fiber -0.0225 -0.0225 0.002 2
fiber -0.0225 -0.0675 0.002 2
fiber -0.0675 0.0675 0.002 2
fiber -0.0675 0.0225 0.002 2
fiber -0.0675 -0.0225 0.002 2
fiber -0.0675 -0.0675 0.002 2

# Steel Reinforcement

fiber 0.085 0.085 0.0000785 1
fiber 0.085 0.0 0.0000785 1
fiber 0.085 -0.085 0.0000785 1
fiber 0.0 0.085 0.0000785 1
fiber 0.0 -0.085 0.0000785 1
fiber -0.085 0.085 0.0000785 1
fiber -0.085 0 0.0000785 1
fiber -0.085 -0.085 0.0000785 1

}

section Aggregator 2 5 T -section 1


#Beam Section without Slab


section Fiber 3 {

#Concrete Cover

fiber 0.09 0.19 0.0004 3
fiber 0.07 0.19 0.0004 3
fiber 0.05 0.19 0.0004 3
fiber 0.03 0.19 0.0004 3
fiber 0.01 0.19 0.0004 3
fiber -0.01 0.19 0.0004 3
fiber -0.03 0.19 0.0004 3
fiber -0.05 0.19 0.0004 3
fiber -0.07 0.19 0.0004 3
fiber -0.09 0.19 0.0004 3
fiber -0.09 0.17 0.0004 3
fiber -0.09 0.15 0.0004 3
fiber -0.09 0.13 0.0004 3
fiber -0.09 0.11 0.0004 3
fiber -0.09 0.09 0.0004 3
fiber -0.09 0.07 0.0004 3
fiber -0.09 0.05 0.0004 3
fiber -0.09 0.03 0.0004 3
fiber -0.09 0.01 0.0004 3
fiber -0.09 -0.01 0.0004 3
fiber -0.09 -0.03 0.0004 3
fiber -0.09 -0.05 0.0004 3
fiber -0.09 -0.07 0.0004 3
fiber -0.09 -0.09 0.0004 3
fiber -0.09 -0.11 0.0004 3
fiber -0.09 -0.13 0.0004 3
fiber -0.09 -0.15 0.0004 3
fiber -0.09 -0.17 0.0004 3
fiber -0.09 -0.19 0.0004 3
fiber -0.07 -0.19 0.0004 3
fiber -0.05 -0.19 0.0004 3
fiber -0.03 -0.19 0.0004 3
fiber -0.01 -0.19 0.0004 3
fiber 0.01 -0.19 0.0004 3
fiber 0.03 -0.19 0.0004 3
fiber 0.05 -0.19 0.0004 3
fiber 0.07 -0.19 0.0004 3
fiber 0.09 -0.19 0.0004 3
fiber 0.09 -0.17 0.0004 3
fiber 0.09 -0.15 0.0004 3
fiber 0.09 -0.13 0.0004 3
fiber 0.09 -0.11 0.0004 3
fiber 0.09 -0.09 0.0004 3
fiber 0.09 -0.07 0.0004 3
fiber 0.09 -0.05 0.0004 3
fiber 0.09 -0.03 0.0004 3
fiber 0.09 -0.01 0.0004 3
fiber 0.09 0.01 0.0004 3
fiber 0.09 0.03 0.0004 3
fiber 0.09 0.05 0.0004 3
fiber 0.09 0.07 0.0004 3
fiber 0.09 0.09 0.0004 3
fiber 0.09 0.11 0.0004 3
fiber 0.09 0.13 0.0004 3
fiber 0.09 0.15 0.0004 3
fiber 0.09 0.17 0.0004 3

# Concrete Core

fiber 0.06 0.15 0.0024 10
fiber 0.02 0.15 0.0024 10
fiber -0.02 0.15 0.0024 10
fiber -0.06 0.15 0.0024 10
fiber 0.06 0.09 0.0024 10
fiber 0.02 0.09 0.0024 10
fiber -0.02 0.09 0.0024 10
fiber -0.06 0.09 0.0024 10
fiber 0.06 0.03 0.0024 10
fiber 0.02 0.03 0.0024 10
fiber -0.02 0.03 0.0024 10
fiber -0.06 0.03 0.0024 10
fiber 0.06 -0.03 0.0024 10
fiber 0.02 -0.03 0.0024 10
fiber -0.02 -0.03 0.0024 10
fiber -0.06 -0.03 0.0024 10
fiber 0.06 -0.09 0.0024 10
fiber 0.02 -0.09 0.0024 10
fiber -0.02 -0.09 0.0024 10
fiber -0.06 -0.09 0.0024 10
fiber 0.06 -0.15 0.0024 10
fiber 0.02 -0.15 0.0024 10
fiber -0.02 -0.15 0.0024 10
fiber -0.06 -0.15 0.0024 10

# Steel Reinforcement
fiber 0.075 0.175 0.0000785 1
fiber 0.00 0.175 0.0000785 1
fiber -0.075 0.175 0.0000785 1
fiber 0.074 -0.174 0.000113 1
fiber -0.074 -0.174 0.000113 1

}

section Aggregator 4 6 T -section 3

section Fiber 5 {

#Concrete Cover

fiber 0.09 0.19 0.0004 3
fiber 0.07 0.19 0.0004 3
fiber 0.05 0.19 0.0004 3
fiber 0.03 0.19 0.0004 3
fiber 0.01 0.19 0.0004 3
fiber -0.01 0.19 0.0004 3
fiber -0.03 0.19 0.0004 3
fiber -0.05 0.19 0.0004 3
fiber -0.07 0.19 0.0004 3
fiber -0.09 0.19 0.0004 3
fiber -0.09 0.17 0.0004 3
fiber -0.09 0.15 0.0004 3
fiber -0.09 0.13 0.0004 3
fiber -0.09 0.11 0.0004 3
fiber -0.09 0.09 0.0004 3
fiber -0.09 0.07 0.0004 3
fiber -0.09 0.05 0.0004 3
fiber -0.09 0.03 0.0004 3
fiber -0.09 0.01 0.0004 3
fiber -0.09 -0.01 0.0004 3
fiber -0.09 -0.03 0.0004 3
fiber -0.09 -0.05 0.0004 3
fiber -0.09 -0.07 0.0004 3
fiber -0.09 -0.09 0.0004 3
fiber -0.09 -0.11 0.0004 3
fiber -0.09 -0.13 0.0004 3
fiber -0.09 -0.15 0.0004 3
fiber -0.09 -0.17 0.0004 3
fiber -0.09 -0.19 0.0004 3
fiber -0.07 -0.19 0.0004 3
fiber -0.05 -0.19 0.0004 3
fiber -0.03 -0.19 0.0004 3
fiber -0.01 -0.19 0.0004 3
fiber 0.01 -0.19 0.0004 3
fiber 0.03 -0.19 0.0004 3
fiber 0.05 -0.19 0.0004 3
fiber 0.07 -0.19 0.0004 3
fiber 0.09 -0.19 0.0004 3
fiber 0.09 -0.17 0.0004 3
fiber 0.09 -0.15 0.0004 3
fiber 0.09 -0.13 0.0004 3
fiber 0.09 -0.11 0.0004 3
fiber 0.09 -0.09 0.0004 3
fiber 0.09 -0.07 0.0004 3
fiber 0.09 -0.05 0.0004 3
fiber 0.09 -0.03 0.0004 3
fiber 0.09 -0.01 0.0004 3
fiber 0.09 0.01 0.0004 3
fiber 0.09 0.03 0.0004 3
fiber 0.09 0.05 0.0004 3
fiber 0.09 0.07 0.0004 3
fiber 0.09 0.09 0.0004 3
fiber 0.09 0.11 0.0004 3
fiber 0.09 0.13 0.0004 3
fiber 0.09 0.15 0.0004 3
fiber 0.09 0.17 0.0004 3

# Concrete Core

fiber 0.06 0.15 0.0024 10
fiber 0.02 0.15 0.0024 10
fiber -0.02 0.15 0.0024 10
fiber -0.06 0.15 0.0024 10
fiber 0.06 0.09 0.0024 10
fiber 0.02 0.09 0.0024 10
fiber -0.02 0.09 0.0024 10
fiber -0.06 0.09 0.0024 10
fiber 0.06 0.03 0.0024 10
fiber 0.02 0.03 0.0024 10
fiber -0.02 0.03 0.0024 10
fiber -0.06 0.03 0.0024 10
fiber 0.06 -0.03 0.0024 10
fiber 0.02 -0.03 0.0024 10
fiber -0.02 -0.03 0.0024 10
fiber -0.06 -0.03 0.0024 10
fiber 0.06 -0.09 0.0024 10
fiber 0.02 -0.09 0.0024 10
fiber -0.02 -0.09 0.0024 10
fiber -0.06 -0.09 0.0024 10
fiber 0.06 -0.15 0.0024 10
fiber 0.02 -0.15 0.0024 10
fiber -0.02 -0.15 0.0024 10
fiber -0.06 -0.15 0.0024 10

# Steel Reinforcement
fiber 0.075 0.175 0.0000785 1
fiber 0.00 0.175 0.0000785 1
fiber -0.075 0.175 0.0000785 1
fiber 0.074 -0.174 0.000113 1
fiber -0.074 -0.174 0.000113 1
fiber 0.00 -0.174 0.000113 1

}

section Aggregator 6 6 T -section 5

section Fiber 7 {

#Concrete Cover

fiber 0.09 0.19 0.0004 3
fiber 0.07 0.19 0.0004 3
fiber 0.05 0.19 0.0004 3
fiber 0.03 0.19 0.0004 3
fiber 0.01 0.19 0.0004 3
fiber -0.01 0.19 0.0004 3
fiber -0.03 0.19 0.0004 3
fiber -0.05 0.19 0.0004 3
fiber -0.07 0.19 0.0004 3
fiber -0.09 0.19 0.0004 3
fiber -0.09 0.17 0.0004 3
fiber -0.09 0.15 0.0004 3
fiber -0.09 0.13 0.0004 3
fiber -0.09 0.11 0.0004 3
fiber -0.09 0.09 0.0004 3
fiber -0.09 0.07 0.0004 3
fiber -0.09 0.05 0.0004 3
fiber -0.09 0.03 0.0004 3
fiber -0.09 0.01 0.0004 3
fiber -0.09 -0.01 0.0004 3
fiber -0.09 -0.03 0.0004 3
fiber -0.09 -0.05 0.0004 3
fiber -0.09 -0.07 0.0004 3
fiber -0.09 -0.09 0.0004 3
fiber -0.09 -0.11 0.0004 3
fiber -0.09 -0.13 0.0004 3
fiber -0.09 -0.15 0.0004 3
fiber -0.09 -0.17 0.0004 3
fiber -0.09 -0.19 0.0004 3
fiber -0.07 -0.19 0.0004 3
fiber -0.05 -0.19 0.0004 3
fiber -0.03 -0.19 0.0004 3
fiber -0.01 -0.19 0.0004 3
fiber 0.01 -0.19 0.0004 3
fiber 0.03 -0.19 0.0004 3
fiber 0.05 -0.19 0.0004 3
fiber 0.07 -0.19 0.0004 3
fiber 0.09 -0.19 0.0004 3
fiber 0.09 -0.17 0.0004 3
fiber 0.09 -0.15 0.0004 3
fiber 0.09 -0.13 0.0004 3
fiber 0.09 -0.11 0.0004 3
fiber 0.09 -0.09 0.0004 3
fiber 0.09 -0.07 0.0004 3
fiber 0.09 -0.05 0.0004 3
fiber 0.09 -0.03 0.0004 3
fiber 0.09 -0.01 0.0004 3
fiber 0.09 0.01 0.0004 3
fiber 0.09 0.03 0.0004 3
fiber 0.09 0.05 0.0004 3
fiber 0.09 0.07 0.0004 3
fiber 0.09 0.09 0.0004 3
fiber 0.09 0.11 0.0004 3
fiber 0.09 0.13 0.0004 3
fiber 0.09 0.15 0.0004 3
fiber 0.09 0.17 0.0004 3

# Concrete Core

fiber 0.06 0.15 0.0024 4
fiber 0.02 0.15 0.0024 4
fiber -0.02 0.15 0.0024 4
fiber -0.06 0.15 0.0024 4
fiber 0.06 0.09 0.0024 4
fiber 0.02 0.09 0.0024 4
fiber -0.02 0.09 0.0024 4
fiber -0.06 0.09 0.0024 4
fiber 0.06 0.03 0.0024 4
fiber 0.02 0.03 0.0024 4
fiber -0.02 0.03 0.0024 4
fiber -0.06 0.03 0.0024 4
fiber 0.06 -0.03 0.0024 4
fiber 0.02 -0.03 0.0024 4
fiber -0.02 -0.03 0.0024 4
fiber -0.06 -0.03 0.0024 4
fiber 0.06 -0.09 0.0024 4
fiber 0.02 -0.09 0.0024 4
fiber -0.02 -0.09 0.0024 4
fiber -0.06 -0.09 0.0024 4
fiber 0.06 -0.15 0.0024 4
fiber 0.02 -0.15 0.0024 4
fiber -0.02 -0.15 0.0024 4
fiber -0.06 -0.15 0.0024 4

# Steel Reinforcement
fiber 0.075 0.175 0.0000785 1
fiber -0.075 0.175 0.0000785 1
fiber 0.074 -0.174 0.000113 1
fiber -0.074 -0.174 0.000113 1
fiber 0.00 -0.174 0.000113 1

}

section Aggregator 8 6 T -section 7

#Beam Section with slab

section Fiber 9 {

#Concrete Cover

fiber 0.09 0.19 0.0004 3
fiber 0.07 0.19 0.0004 3
fiber 0.05 0.19 0.0004 3
fiber 0.03 0.19 0.0004 3
fiber 0.01 0.19 0.0004 3
fiber -0.01 0.19 0.0004 3
fiber -0.03 0.19 0.0004 3
fiber -0.05 0.19 0.0004 3
fiber -0.07 0.19 0.0004 3
fiber -0.09 0.19 0.0004 3
fiber -0.09 0.17 0.0004 3
fiber -0.09 0.15 0.0004 3
fiber -0.09 0.13 0.0004 3
fiber -0.09 0.11 0.0004 3
fiber -0.09 0.09 0.0004 3
fiber -0.09 0.07 0.0004 3
fiber -0.09 0.05 0.0004 3
fiber -0.09 0.03 0.0004 3
fiber -0.09 0.01 0.0004 3
fiber -0.09 -0.01 0.0004 3
fiber -0.09 -0.03 0.0004 3
fiber -0.09 -0.05 0.0004 3
fiber -0.09 -0.07 0.0004 3
fiber -0.09 -0.09 0.0004 3
fiber -0.09 -0.11 0.0004 3
fiber -0.09 -0.13 0.0004 3
fiber -0.09 -0.15 0.0004 3
fiber -0.09 -0.17 0.0004 3
fiber -0.09 -0.19 0.0004 3
fiber -0.07 -0.19 0.0004 3
fiber -0.05 -0.19 0.0004 3
fiber -0.03 -0.19 0.0004 3
fiber -0.01 -0.19 0.0004 3
fiber 0.01 -0.19 0.0004 3
fiber 0.03 -0.19 0.0004 3
fiber 0.05 -0.19 0.0004 3
fiber 0.07 -0.19 0.0004 3
fiber 0.09 -0.19 0.0004 3
fiber 0.09 -0.17 0.0004 3
fiber 0.09 -0.15 0.0004 3
fiber 0.09 -0.13 0.0004 3
fiber 0.09 -0.11 0.0004 3
fiber 0.09 -0.09 0.0004 3
fiber 0.09 -0.07 0.0004 3
fiber 0.09 -0.05 0.0004 3
fiber 0.09 -0.03 0.0004 3
fiber 0.09 -0.01 0.0004 3
fiber 0.09 0.01 0.0004 3
fiber 0.09 0.03 0.0004 3
fiber 0.09 0.05 0.0004 3
fiber 0.09 0.07 0.0004 3
fiber 0.09 0.09 0.0004 3
fiber 0.09 0.11 0.0004 3
fiber 0.09 0.13 0.0004 3
fiber 0.09 0.15 0.0004 3
fiber 0.09 0.17 0.0004 3

# Concrete Core

fiber 0.06 0.15 0.0024 10
fiber 0.02 0.15 0.0024 10
fiber -0.02 0.15 0.0024 10
fiber -0.06 0.15 0.0024 10
fiber 0.06 0.09 0.0024 10
fiber 0.02 0.09 0.0024 10
fiber -0.02 0.09 0.0024 10
fiber -0.06 0.09 0.0024 10
fiber 0.06 0.03 0.0024 10
fiber 0.02 0.03 0.0024 10
fiber -0.02 0.03 0.0024 10
fiber -0.06 0.03 0.0024 10
fiber 0.06 -0.03 0.0024 10
fiber 0.02 -0.03 0.0024 10
fiber -0.02 -0.03 0.0024 10
fiber -0.06 -0.03 0.0024 10
fiber 0.06 -0.09 0.0024 10
fiber 0.02 -0.09 0.0024 10
fiber -0.02 -0.09 0.0024 10
fiber -0.06 -0.09 0.0024 10
fiber 0.06 -0.15 0.0024 10
fiber 0.02 -0.15 0.0024 10
fiber -0.02 -0.15 0.0024 10
fiber -0.06 -0.15 0.0024 10

# Slab

fiber 0.1167 0.1833 0.0011 3
fiber 0.1167 0.15 0.0011 3
fiber 0.1167 0.1167 0.0011 3
fiber 0.15 0.1833 0.0011 3
fiber 0.15 0.15 0.0011 3
fiber 0.15 0.1167 0.0011 3
fiber 0.1833 0.1833 0.0011 3
fiber 0.1833 0.15 0.0011 3
fiber 0.1833 0.1167 0.0011 3
fiber 0.2167 0.1833 0.0011 3
fiber 0.2167 0.15 0.0011 3
fiber 0.2167 0.1167 0.0011 3
fiber 0.25 0.1833 0.0011 3
fiber 0.25 0.15 0.0011 3
fiber 0.25 0.1167 0.0011 3
fiber 0.2833 0.1833 0.0011 3
fiber 0.2833 0.15 0.0011 3
fiber 0.2833 0.1167 0.0011 3
fiber 0.3167 0.1833 0.0011 3
fiber 0.3167 0.15 0.0011 3
fiber 0.3167 0.1167 0.0011 3
fiber 0.35 0.1833 0.0011 3
fiber 0.35 0.15 0.0011 3
fiber 0.35 0.1167 0.0011 3
fiber 0.3833 0.1833 0.0011 3
fiber 0.3833 0.15 0.0011 3
fiber 0.3833 0.1167 0.0011 3
fiber 0.4167 0.1833 0.0011 3
fiber 0.4167 0.15 0.0011 3
fiber 0.4167 0.1167 0.0011 3
fiber 0.45 0.1833 0.0011 3
fiber 0.45 0.15 0.0011 3
fiber 0.45 0.1167 0.0011 3
fiber 0.4833 0.1833 0.0011 3
fiber 0.4833 0.15 0.0011 3
fiber 0.4833 0.1167 0.0011 3
fiber 0.5167 0.1833 0.0011 3
fiber 0.5167 0.15 0.0011 3
fiber 0.5167 0.1167 0.0011 3
fiber 0.55 0.1833 0.0011 3
fiber 0.55 0.15 0.0011 3
fiber 0.55 0.1167 0.0011 3
fiber 0.5833 0.1833 0.0011 3
fiber 0.5833 0.15 0.0011 3
fiber 0.5833 0.1167 0.0011 3

# Steel Reinforcement

fiber 0.075 0.175 0.0000785 1
fiber 0.00 0.175 0.0000785 1
fiber -0.075 0.175 0.0000785 1
fiber 0.074 -0.174 0.000113 1
fiber -0.074 -0.174 0.000113 1

# Slab Reinforcement

fiber 0.25 0.175 0.0000785 1
fiber 0.4 0.175 0.0000785 1
fiber 0.55 0.175 0.0000785 1
fiber 0.25 0.124 0.00005026 1
fiber 0.4 0.124 0.00005026 1
fiber 0.55 0.124 0.00005026 1


}

section Aggregator 10 7 T -section 9

section Fiber 11 {

#Concrete Cover

fiber 0.09 0.19 0.0004 3
fiber 0.07 0.19 0.0004 3
fiber 0.05 0.19 0.0004 3
fiber 0.03 0.19 0.0004 3
fiber 0.01 0.19 0.0004 3
fiber -0.01 0.19 0.0004 3
fiber -0.03 0.19 0.0004 3
fiber -0.05 0.19 0.0004 3
fiber -0.07 0.19 0.0004 3
fiber -0.09 0.19 0.0004 3
fiber -0.09 0.17 0.0004 3
fiber -0.09 0.15 0.0004 3
fiber -0.09 0.13 0.0004 3
fiber -0.09 0.11 0.0004 3
fiber -0.09 0.09 0.0004 3
fiber -0.09 0.07 0.0004 3
fiber -0.09 0.05 0.0004 3
fiber -0.09 0.03 0.0004 3
fiber -0.09 0.01 0.0004 3
fiber -0.09 -0.01 0.0004 3
fiber -0.09 -0.03 0.0004 3
fiber -0.09 -0.05 0.0004 3
fiber -0.09 -0.07 0.0004 3
fiber -0.09 -0.09 0.0004 3
fiber -0.09 -0.11 0.0004 3
fiber -0.09 -0.13 0.0004 3
fiber -0.09 -0.15 0.0004 3
fiber -0.09 -0.17 0.0004 3
fiber -0.09 -0.19 0.0004 3
fiber -0.07 -0.19 0.0004 3
fiber -0.05 -0.19 0.0004 3
fiber -0.03 -0.19 0.0004 3
fiber -0.01 -0.19 0.0004 3
fiber 0.01 -0.19 0.0004 3
fiber 0.03 -0.19 0.0004 3
fiber 0.05 -0.19 0.0004 3
fiber 0.07 -0.19 0.0004 3
fiber 0.09 -0.19 0.0004 3
fiber 0.09 -0.17 0.0004 3
fiber 0.09 -0.15 0.0004 3
fiber 0.09 -0.13 0.0004 3
fiber 0.09 -0.11 0.0004 3
fiber 0.09 -0.09 0.0004 3
fiber 0.09 -0.07 0.0004 3
fiber 0.09 -0.05 0.0004 3
fiber 0.09 -0.03 0.0004 3
fiber 0.09 -0.01 0.0004 3
fiber 0.09 0.01 0.0004 3
fiber 0.09 0.03 0.0004 3
fiber 0.09 0.05 0.0004 3
fiber 0.09 0.07 0.0004 3
fiber 0.09 0.09 0.0004 3
fiber 0.09 0.11 0.0004 3
fiber 0.09 0.13 0.0004 3
fiber 0.09 0.15 0.0004 3
fiber 0.09 0.17 0.0004 3

# Concrete Core

fiber 0.06 0.15 0.0024 10
fiber 0.02 0.15 0.0024 10
fiber -0.02 0.15 0.0024 10
fiber -0.06 0.15 0.0024 10
fiber 0.06 0.09 0.0024 10
fiber 0.02 0.09 0.0024 10
fiber -0.02 0.09 0.0024 10
fiber -0.06 0.09 0.0024 10
fiber 0.06 0.03 0.0024 10
fiber 0.02 0.03 0.0024 10
fiber -0.02 0.03 0.0024 10
fiber -0.06 0.03 0.0024 10
fiber 0.06 -0.03 0.0024 10
fiber 0.02 -0.03 0.0024 10
fiber -0.02 -0.03 0.0024 10
fiber -0.06 -0.03 0.0024 10
fiber 0.06 -0.09 0.0024 10
fiber 0.02 -0.09 0.0024 10
fiber -0.02 -0.09 0.0024 10
fiber -0.06 -0.09 0.0024 10
fiber 0.06 -0.15 0.0024 10
fiber 0.02 -0.15 0.0024 10
fiber -0.02 -0.15 0.0024 10
fiber -0.06 -0.15 0.0024 10

# Slab

fiber 0.1167 0.1833 0.0011 3
fiber 0.1167 0.15 0.0011 3
fiber 0.1167 0.1167 0.0011 3
fiber 0.15 0.1833 0.0011 3
fiber 0.15 0.15 0.0011 3
fiber 0.15 0.1167 0.0011 3
fiber 0.1833 0.1833 0.0011 3
fiber 0.1833 0.15 0.0011 3
fiber 0.1833 0.1167 0.0011 3
fiber 0.2167 0.1833 0.0011 3
fiber 0.2167 0.15 0.0011 3
fiber 0.2167 0.1167 0.0011 3
fiber 0.25 0.1833 0.0011 3
fiber 0.25 0.15 0.0011 3
fiber 0.25 0.1167 0.0011 3
fiber 0.2833 0.1833 0.0011 3
fiber 0.2833 0.15 0.0011 3
fiber 0.2833 0.1167 0.0011 3
fiber 0.3167 0.1833 0.0011 3
fiber 0.3167 0.15 0.0011 3
fiber 0.3167 0.1167 0.0011 3
fiber 0.35 0.1833 0.0011 3
fiber 0.35 0.15 0.0011 3
fiber 0.35 0.1167 0.0011 3
fiber 0.3833 0.1833 0.0011 3
fiber 0.3833 0.15 0.0011 3
fiber 0.3833 0.1167 0.0011 3
fiber 0.4167 0.1833 0.0011 3
fiber 0.4167 0.15 0.0011 3
fiber 0.4167 0.1167 0.0011 3
fiber 0.45 0.1833 0.0011 3
fiber 0.45 0.15 0.0011 3
fiber 0.45 0.1167 0.0011 3
fiber 0.4833 0.1833 0.0011 3
fiber 0.4833 0.15 0.0011 3
fiber 0.4833 0.1167 0.0011 3
fiber 0.5167 0.1833 0.0011 3
fiber 0.5167 0.15 0.0011 3
fiber 0.5167 0.1167 0.0011 3
fiber 0.55 0.1833 0.0011 3
fiber 0.55 0.15 0.0011 3
fiber 0.55 0.1167 0.0011 3
fiber 0.5833 0.1833 0.0011 3
fiber 0.5833 0.15 0.0011 3
fiber 0.5833 0.1167 0.0011 3

# Steel Reinforcement
fiber 0.075 0.175 0.0000785 1
fiber 0.00 0.175 0.0000785 1
fiber -0.075 0.175 0.0000785 1
fiber 0.074 -0.174 0.000113 1
fiber -0.074 -0.174 0.000113 1
fiber 0.00 -0.174 0.000113 1

# Slab Reinforcement

fiber 0.25 0.175 0.0000785 1
fiber 0.4 0.175 0.0000785 1
fiber 0.55 0.175 0.0000785 1
fiber 0.25 0.124 0.00005026 1
fiber 0.4 0.124 0.00005026 1
fiber 0.55 0.124 0.00005026 1

}

section Aggregator 12 7 T -section 11

section Fiber 13 {

#Concrete Cover

fiber 0.09 0.19 0.0004 3
fiber 0.07 0.19 0.0004 3
fiber 0.05 0.19 0.0004 3
fiber 0.03 0.19 0.0004 3
fiber 0.01 0.19 0.0004 3
fiber -0.01 0.19 0.0004 3
fiber -0.03 0.19 0.0004 3
fiber -0.05 0.19 0.0004 3
fiber -0.07 0.19 0.0004 3
fiber -0.09 0.19 0.0004 3
fiber -0.09 0.17 0.0004 3
fiber -0.09 0.15 0.0004 3
fiber -0.09 0.13 0.0004 3
fiber -0.09 0.11 0.0004 3
fiber -0.09 0.09 0.0004 3
fiber -0.09 0.07 0.0004 3
fiber -0.09 0.05 0.0004 3
fiber -0.09 0.03 0.0004 3
fiber -0.09 0.01 0.0004 3
fiber -0.09 -0.01 0.0004 3
fiber -0.09 -0.03 0.0004 3
fiber -0.09 -0.05 0.0004 3
fiber -0.09 -0.07 0.0004 3
fiber -0.09 -0.09 0.0004 3
fiber -0.09 -0.11 0.0004 3
fiber -0.09 -0.13 0.0004 3
fiber -0.09 -0.15 0.0004 3
fiber -0.09 -0.17 0.0004 3
fiber -0.09 -0.19 0.0004 3
fiber -0.07 -0.19 0.0004 3
fiber -0.05 -0.19 0.0004 3
fiber -0.03 -0.19 0.0004 3
fiber -0.01 -0.19 0.0004 3
fiber 0.01 -0.19 0.0004 3
fiber 0.03 -0.19 0.0004 3
fiber 0.05 -0.19 0.0004 3
fiber 0.07 -0.19 0.0004 3
fiber 0.09 -0.19 0.0004 3
fiber 0.09 -0.17 0.0004 3
fiber 0.09 -0.15 0.0004 3
fiber 0.09 -0.13 0.0004 3
fiber 0.09 -0.11 0.0004 3
fiber 0.09 -0.09 0.0004 3
fiber 0.09 -0.07 0.0004 3
fiber 0.09 -0.05 0.0004 3
fiber 0.09 -0.03 0.0004 3
fiber 0.09 -0.01 0.0004 3
fiber 0.09 0.01 0.0004 3
fiber 0.09 0.03 0.0004 3
fiber 0.09 0.05 0.0004 3
fiber 0.09 0.07 0.0004 3
fiber 0.09 0.09 0.0004 3
fiber 0.09 0.11 0.0004 3
fiber 0.09 0.13 0.0004 3
fiber 0.09 0.15 0.0004 3
fiber 0.09 0.17 0.0004 3

# Concrete Core

fiber 0.06 0.15 0.0024 4
fiber 0.02 0.15 0.0024 4
fiber -0.02 0.15 0.0024 4
fiber -0.06 0.15 0.0024 4
fiber 0.06 0.09 0.0024 4
fiber 0.02 0.09 0.0024 4
fiber -0.02 0.09 0.0024 4
fiber -0.06 0.09 0.0024 4
fiber 0.06 0.03 0.0024 4
fiber 0.02 0.03 0.0024 4
fiber -0.02 0.03 0.0024 4
fiber -0.06 0.03 0.0024 4
fiber 0.06 -0.03 0.0024 4
fiber 0.02 -0.03 0.0024 4
fiber -0.02 -0.03 0.0024 4
fiber -0.06 -0.03 0.0024 4
fiber 0.06 -0.09 0.0024 4
fiber 0.02 -0.09 0.0024 4
fiber -0.02 -0.09 0.0024 4
fiber -0.06 -0.09 0.0024 4
fiber 0.06 -0.15 0.0024 4
fiber 0.02 -0.15 0.0024 4
fiber -0.02 -0.15 0.0024 4
fiber -0.06 -0.15 0.0024 4

# Slab

fiber 0.1167 0.1833 0.0011 3
fiber 0.1167 0.15 0.0011 3
fiber 0.1167 0.1167 0.0011 3
fiber 0.15 0.1833 0.0011 3
fiber 0.15 0.15 0.0011 3
fiber 0.15 0.1167 0.0011 3
fiber 0.1833 0.1833 0.0011 3
fiber 0.1833 0.15 0.0011 3
fiber 0.1833 0.1167 0.0011 3
fiber 0.2167 0.1833 0.0011 3
fiber 0.2167 0.15 0.0011 3
fiber 0.2167 0.1167 0.0011 3
fiber 0.25 0.1833 0.0011 3
fiber 0.25 0.15 0.0011 3
fiber 0.25 0.1167 0.0011 3
fiber 0.2833 0.1833 0.0011 3
fiber 0.2833 0.15 0.0011 3
fiber 0.2833 0.1167 0.0011 3
fiber 0.3167 0.1833 0.0011 3
fiber 0.3167 0.15 0.0011 3
fiber 0.3167 0.1167 0.0011 3
fiber 0.35 0.1833 0.0011 3
fiber 0.35 0.15 0.0011 3
fiber 0.35 0.1167 0.0011 3
fiber 0.3833 0.1833 0.0011 3
fiber 0.3833 0.15 0.0011 3
fiber 0.3833 0.1167 0.0011 3
fiber 0.4167 0.1833 0.0011 3
fiber 0.4167 0.15 0.0011 3
fiber 0.4167 0.1167 0.0011 3
fiber 0.45 0.1833 0.0011 3
fiber 0.45 0.15 0.0011 3
fiber 0.45 0.1167 0.0011 3
fiber 0.4833 0.1833 0.0011 3
fiber 0.4833 0.15 0.0011 3
fiber 0.4833 0.1167 0.0011 3
fiber 0.5167 0.1833 0.0011 3
fiber 0.5167 0.15 0.0011 3
fiber 0.5167 0.1167 0.0011 3
fiber 0.55 0.1833 0.0011 3
fiber 0.55 0.15 0.0011 3
fiber 0.55 0.1167 0.0011 3
fiber 0.5833 0.1833 0.0011 3
fiber 0.5833 0.15 0.0011 3
fiber 0.5833 0.1167 0.0011 3

# Steel Reinforcement
fiber 0.075 0.175 0.0000785 1
fiber -0.075 0.175 0.0000785 1
fiber 0.074 -0.174 0.000113 1
fiber -0.074 -0.174 0.000113 1
fiber 0.00 -0.174 0.000113 1


# Slab Reinforcement

fiber 0.25 0.175 0.0000785 1
fiber 0.4 0.175 0.0000785 1
fiber 0.55 0.175 0.0000785 1
fiber 0.25 0.124 0.00005026 1
fiber 0.4 0.124 0.00005026 1
fiber 0.55 0.124 0.00005026 1

}

section Aggregator 14 7 T -section 13

#Elements

#Columns

element forceBeamColumn 1 1 2 5 2 1
element zeroLength 2 24 1 -mat 9 -dir 5 6
element elasticBeamColumn 3 2 3 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 1
element forceBeamColumn 4 6 7 5 2 1
element zeroLength 5 25 6 -mat 9 -dir 5 6
element elasticBeamColumn 6 7 8 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 1
element forceBeamColumn 7 14 15 5 2 1
element zeroLength 8 26 14 -mat 8 -dir 5 6
element elasticBeamColumn 9 15 16 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 1
element forceBeamColumn 10 19 20 5 2 1
element zeroLength 11 27 19 -mat 8 -dir 5 6
element elasticBeamColumn 12 20 21 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 1

#Beams

element elasticBeamColumn 13 3 4 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 2
element forceBeamColumn 14 4 28 5 4 2
element forceBeamColumn 15 28 29 5 6 2
element forceBeamColumn 16 29 30 5 8 2
element forceBeamColumn 17 30 31 5 6 2
element forceBeamColumn 18 31 9 5 4 2
element elasticBeamColumn 19 9 8 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 2

element elasticBeamColumn 20 3 5 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 2
element forceBeamColumn 21 5 40 5 4 2
element forceBeamColumn 22 40 41 5 6 2
element forceBeamColumn 23 41 11 5 8 2
element elasticBeamColumn 24 21 22 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 2
element forceBeamColumn 25 43 22 5 10 2
element forceBeamColumn 26 42 43 5 12 2
element forceBeamColumn 27 11 42 5 14 2

element elasticBeamColumn 28 8 10 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 2
element forceBeamColumn 29 10 36 5 4 2
element forceBeamColumn 30 36 37 5 6 2
element forceBeamColumn 31 37 12 5 8 2
element elasticBeamColumn 32 16 17 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 2
element forceBeamColumn 33 17 39 5 10 2
element forceBeamColumn 34 39 38 5 12 2
element forceBeamColumn 35 38 12 5 14 2

element elasticBeamColumn 36 21 23 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 2
element forceBeamColumn 37 23 35 5 10 2
element forceBeamColumn 38 35 34 5 12 2
element forceBeamColumn 39 34 33 5 14 2
element forceBeamColumn 40 33 32 5 12 2
element forceBeamColumn 41 32 18 5 10 2
element elasticBeamColumn 42 16 18 1.0E+04 28500000 11875000 1.00E+04 1.00E+04 1.00E+04 2

#Damping

rayleigh 1.43125 0.001743 0.001743 0.001743


#Results

recorder Node -file NodeDisplacementsA.txt -node 8 -dof 1 2 disp
recorder Node -file NodeDisplacementsB.txt -node 3 -dof 1 2 disp

#Static Loads

pattern Plain 1 Linear {

eleLoad -ele 33 34 35 -type -beamUniform 0.0 -20.0 0.0
eleLoad -ele 37 38 39 40 41 -type -beamUniform 0.0 -20.0 0.0
eleLoad -ele 25 26 27 -type -beamUniform 0.0 -20.0 0.0

}


# Self Weight Analysis

constraints Transformation
numberer RCM
system BandGeneral
test NormUnbalance 1.0e-6 100 5
algorithm Newton
integrator LoadControl 0.1
analysis Static
analyze 10
loadConst -time 0.0

[vesna]

The error message you get means that the equation of motion can not be solved due to instability of the model. Check your boundary conditions and make sure that you do not have hanging nodes. I would suggest you to use display recorder (http://opensees.berkeley.edu/wiki/index ... ode_shapes) to visualize your model. This can help you find the error if it is related to geometry and connectivity of your elements.

[kmegal01]

Thank you very much for your immediate reply. I understand your comment but I want just to mention that because I have imagined that this might be the case I have already tried the same geometry and connectivity with elastic elements and the static analysis runs without problem. However, I will take a better look using the display recorder. Thank you very much again.

[MichaelDupuis]

I am having this same problem, and I also am able to run a static analysis but not a dynamic analysis. I was wondering if this knowledge could help narrow down the potential source of the problem. ie material properties, support conditions, hanging nodes, connectivity, element compatibility...

Thanks,
Michael

[MichaelDupuis]

It is surprising to me that the static analysis and modal analyses work but then the dynamic analysis fails instantly. What could be the reason for this scenario? Can this knowledge be used to narrow down the potential source of the failure?

Could it be element compatibility? I use truss, dispBeamColumn, beamWithHinges, ShellMITC4, rigidDiaphragm and rigidLinks in my model.

Thanks,
Michael

[MichaelDupuis]

Update: I have experimented with adding intentional hanging nodes and elements and this causes my analysis to fail during the static stage - therefore I don't think I'm problem is related to stability of to erroneous connections. I have displayed my building thoroughly as well and it looks OK. Could the problem be that I have used rigidLink beams in series at many points in my model to represent built up joint connections? This is my best guess at this point. Therefore, I have replaced the rigidLinks with elasticBeamColumns, but this is causing my static analyses to run VERY slow. Perhaps equalDOF would be acceptable? Are there any other alternatives?
Michael