Ayuda Problema Sap2000 V22.2.0

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andyarnold18
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Usuario Principiante
Mensajes: 1
Registrado: Lun Mar 14, 2022 7:02 am
Bolivia

Tengo un problema con mi modelo de Sap2000, me aparece un warning de "Estructura Inestable", para solucionar eso corro el standard solver y debería darme las coordenadas del error, efectivamente me muestra varios puntos con coordenadas pero son incoherentes, y al seleccionar el label que me muestra no sé cómo arreglarlo, porque en los puntos tengo asignanos los constrains

Aquí adjunto lo que dice el mensaje:


L I N E A R E Q U A T I O N S O L U T I O N 08:52:41

FORMING STIFFNESS AT ZERO (UNSTRESSED) INITIAL CONDITIONS

TOTAL NUMBER OF EQUILIBRIUM EQUATIONS = 151137
APPROXIMATE "EFFECTIVE" BAND WIDTH = 1007

NUMBER OF EQUATION STORAGE BLOCKS = 2
MAXIMUM BLOCK SIZE (8-BYTE TERMS) = 133276960
SIZE OF STIFFNESS FILE(S) = 1.987 GB

NUMBER OF EQUATIONS TO SOLVE = 151137

* * * W A R N I N G * * *
NUMERICAL PROBLEMS ENCOUNTERED DURING EQUATION ASSEMBLY:

TYPE LABEL DOF X-COORD Y-COORD Z-COORD PROBLEM VALUE
----- ------- -- ----------- ----------- ----------- ------------- -----------
Joint ~917 UZ 11.261765 15.905697 58.400000 Diag = 0 --> 1.00E-10
Joint ~917 RX 11.261765 15.905697 58.400000 Diag = 0 --> 1.00E-10
Joint ~917 RY 11.261765 15.905697 58.400000 Diag = 0 --> 1.00E-10
Joint ~916 UZ 11.261765 15.905697 55.200000 Diag = 0 --> 1.00E-10
Joint ~916 RX 11.261765 15.905697 55.200000 Diag = 0 --> 1.00E-10
Joint ~916 RY 11.261765 15.905697 55.200000 Diag = 0 --> 1.00E-10
Joint ~915 UZ 11.253030 16.148294 52.000000 Diag = 0 --> 1.00E-10
Joint ~915 RX 11.253030 16.148294 52.000000 Diag = 0 --> 1.00E-10
Joint ~915 RY 11.253030 16.148294 52.000000 Diag = 0 --> 1.00E-10
Joint ~914 UZ 11.261765 15.905697 48.800000 Diag = 0 --> 1.00E-10
Joint ~914 RX 11.261765 15.905697 48.800000 Diag = 0 --> 1.00E-10
Joint ~914 RY 11.261765 15.905697 48.800000 Diag = 0 --> 1.00E-10
Joint ~913 UZ 11.261765 15.905697 45.600000 Diag = 0 --> 1.00E-10
Joint ~913 RX 11.261765 15.905697 45.600000 Diag = 0 --> 1.00E-10
Joint ~913 RY 11.261765 15.905697 45.600000 Diag = 0 --> 1.00E-10
Joint ~912 UZ 11.261765 15.905697 42.400000 Diag = 0 --> 1.00E-10
Joint ~912 RX 11.261765 15.905697 42.400000 Diag = 0 --> 1.00E-10
Joint ~912 RY 11.261765 15.905697 42.400000 Diag = 0 --> 1.00E-10
Joint ~911 UZ 11.261765 15.905697 39.200000 Diag = 0 --> 1.00E-10
Joint ~911 RX 11.261765 15.905697 39.200000 Diag = 0 --> 1.00E-10
Joint ~911 RY 11.261765 15.905697 39.200000 Diag = 0 --> 1.00E-10
Joint ~910 UZ 11.261765 15.905697 36.000000 Diag = 0 --> 1.00E-10
Joint ~910 RX 11.261765 15.905697 36.000000 Diag = 0 --> 1.00E-10
Joint ~910 RY 11.261765 15.905697 36.000000 Diag = 0 --> 1.00E-10
Joint ~909 UZ 11.261765 15.905697 32.800000 Diag = 0 --> 1.00E-10
Joint ~909 RX 11.261765 15.905697 32.800000 Diag = 0 --> 1.00E-10
Joint ~909 RY 11.261765 15.905697 32.800000 Diag = 0 --> 1.00E-10
Joint ~908 UZ 11.261765 15.905697 29.600000 Diag = 0 --> 1.00E-10
Joint ~908 RX 11.261765 15.905697 29.600000 Diag = 0 --> 1.00E-10
Joint ~908 RY 11.261765 15.905697 29.600000 Diag = 0 --> 1.00E-10
Joint ~907 UZ 11.261765 15.905697 26.400000 Diag = 0 --> 1.00E-10
Joint ~907 RX 11.261765 15.905697 26.400000 Diag = 0 --> 1.00E-10
Joint ~907 RY 11.261765 15.905697 26.400000 Diag = 0 --> 1.00E-10
Joint ~906 UZ 11.261765 15.905697 23.200000 Diag = 0 --> 1.00E-10
Joint ~906 RX 11.261765 15.905697 23.200000 Diag = 0 --> 1.00E-10
Joint ~906 RY 11.261765 15.905697 23.200000 Diag = 0 --> 1.00E-10
Joint ~905 UZ 11.169444 16.198436 20.000000 Diag = 0 --> 1.00E-10
Joint ~905 RX 11.169444 16.198436 20.000000 Diag = 0 --> 1.00E-10
Joint ~905 RY 11.169444 16.198436 20.000000 Diag = 0 --> 1.00E-10
Joint ~904 UZ 11.261765 15.905697 16.800000 Diag = 0 --> 1.00E-10
Joint ~904 RX 11.261765 15.905697 16.800000 Diag = 0 --> 1.00E-10
Joint ~904 RY 11.261765 15.905697 16.800000 Diag = 0 --> 1.00E-10
Joint ~903 UZ 11.261765 15.905697 13.600000 Diag = 0 --> 1.00E-10
Joint ~903 RX 11.261765 15.905697 13.600000 Diag = 0 --> 1.00E-10
Joint ~903 RY 11.261765 15.905697 13.600000 Diag = 0 --> 1.00E-10
Joint ~902 UZ 11.214286 16.102677 10.491429 Diag = 0 --> 1.00E-10
Joint ~902 RX 11.214286 16.102677 10.491429 Diag = 0 --> 1.00E-10
Joint ~902 RY 11.214286 16.102677 10.491429 Diag = 0 --> 1.00E-10
Joint ~901 UZ 13.431818 17.841159 7.200000 Diag = 0 --> 1.00E-10
Joint ~901 RX 13.431818 17.841159 7.200000 Diag = 0 --> 1.00E-10
Joint ~901 RY 13.431818 17.841159 7.200000 Diag = 0 --> 1.00E-10
Joint ~900 UZ 13.477273 17.859341 4.000000 Diag = 0 --> 1.00E-10
Joint ~900 RX 13.477273 17.859341 4.000000 Diag = 0 --> 1.00E-10
Joint ~900 RY 13.477273 17.859341 4.000000 Diag = 0 --> 1.00E-10
Joint ~899 UZ 11.570175 16.587912 1.56E-17 Diag = 0 --> 1.00E-10
Joint ~899 RX 11.570175 16.587912 1.56E-17 Diag = 0 --> 1.00E-10
Joint ~899 RY 11.570175 16.587912 1.56E-17 Diag = 0 --> 1.00E-10
Joint ~898 UZ 11.560714 16.528768 -2.700000 Diag = 0 --> 1.00E-10
Joint ~898 RX 11.560714 16.528768 -2.700000 Diag = 0 --> 1.00E-10
Joint ~898 RY 11.560714 16.528768 -2.700000 Diag = 0 --> 1.00E-10

Solving 2 equation blocks

Block 1 by block 1
Block 2 by block 1
Block 2 by block 2

---------------------------------
BASIC STABILITY CHECK FOR LINEAR LOAD CASES:
NUMBER OF NEGATIVE STIFFNESS EIGENVALUES SHOULD BE ZERO FOR STABILITY.
(NOTE: FURTHER CHECKS SHOULD BE CONSIDERED AS DEEMED NECESSARY,
SUCH AS REVIEWING EIGEN MODES FOR MECHANISMS AND RIGID-BODY MOTION)

NUMBER OF NEGATIVE EIGENVALUES = 0, OK.
---------------------------------


#Sap2000 #Sap2000V22
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pannus0
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Perú

andyarnold18 escribió: Lun Mar 14, 2022 7:13 am Tengo un problema con mi modelo de Sap2000, me aparece un warning de "Estructura Inestable", para solucionar eso corro el standard solver y debería darme las coordenadas del error, efectivamente me muestra varios puntos con coordenadas pero son incoherentes, y al seleccionar el label que me muestra no sé cómo arreglarlo, porque en los puntos tengo asignanos los constrains

Aquí adjunto lo que dice el mensaje:


L I N E A R E Q U A T I O N S O L U T I O N 08:52:41

FORMING STIFFNESS AT ZERO (UNSTRESSED) INITIAL CONDITIONS

TOTAL NUMBER OF EQUILIBRIUM EQUATIONS = 151137
APPROXIMATE "EFFECTIVE" BAND WIDTH = 1007

NUMBER OF EQUATION STORAGE BLOCKS = 2
MAXIMUM BLOCK SIZE (8-BYTE TERMS) = 133276960
SIZE OF STIFFNESS FILE(S) = 1.987 GB

NUMBER OF EQUATIONS TO SOLVE = 151137

* * * W A R N I N G * * *
NUMERICAL PROBLEMS ENCOUNTERED DURING EQUATION ASSEMBLY:

TYPE LABEL DOF X-COORD Y-COORD Z-COORD PROBLEM VALUE
----- ------- -- ----------- ----------- ----------- ------------- -----------
Joint ~917 UZ 11.261765 15.905697 58.400000 Diag = 0 --> 1.00E-10
Joint ~917 RX 11.261765 15.905697 58.400000 Diag = 0 --> 1.00E-10
Joint ~917 RY 11.261765 15.905697 58.400000 Diag = 0 --> 1.00E-10
Joint ~916 UZ 11.261765 15.905697 55.200000 Diag = 0 --> 1.00E-10
Joint ~916 RX 11.261765 15.905697 55.200000 Diag = 0 --> 1.00E-10
Joint ~916 RY 11.261765 15.905697 55.200000 Diag = 0 --> 1.00E-10
Joint ~915 UZ 11.253030 16.148294 52.000000 Diag = 0 --> 1.00E-10
Joint ~915 RX 11.253030 16.148294 52.000000 Diag = 0 --> 1.00E-10
Joint ~915 RY 11.253030 16.148294 52.000000 Diag = 0 --> 1.00E-10
Joint ~914 UZ 11.261765 15.905697 48.800000 Diag = 0 --> 1.00E-10
Joint ~914 RX 11.261765 15.905697 48.800000 Diag = 0 --> 1.00E-10
Joint ~914 RY 11.261765 15.905697 48.800000 Diag = 0 --> 1.00E-10
Joint ~913 UZ 11.261765 15.905697 45.600000 Diag = 0 --> 1.00E-10
Joint ~913 RX 11.261765 15.905697 45.600000 Diag = 0 --> 1.00E-10
Joint ~913 RY 11.261765 15.905697 45.600000 Diag = 0 --> 1.00E-10
Joint ~912 UZ 11.261765 15.905697 42.400000 Diag = 0 --> 1.00E-10
Joint ~912 RX 11.261765 15.905697 42.400000 Diag = 0 --> 1.00E-10
Joint ~912 RY 11.261765 15.905697 42.400000 Diag = 0 --> 1.00E-10
Joint ~911 UZ 11.261765 15.905697 39.200000 Diag = 0 --> 1.00E-10
Joint ~911 RX 11.261765 15.905697 39.200000 Diag = 0 --> 1.00E-10
Joint ~911 RY 11.261765 15.905697 39.200000 Diag = 0 --> 1.00E-10
Joint ~910 UZ 11.261765 15.905697 36.000000 Diag = 0 --> 1.00E-10
Joint ~910 RX 11.261765 15.905697 36.000000 Diag = 0 --> 1.00E-10
Joint ~910 RY 11.261765 15.905697 36.000000 Diag = 0 --> 1.00E-10
Joint ~909 UZ 11.261765 15.905697 32.800000 Diag = 0 --> 1.00E-10
Joint ~909 RX 11.261765 15.905697 32.800000 Diag = 0 --> 1.00E-10
Joint ~909 RY 11.261765 15.905697 32.800000 Diag = 0 --> 1.00E-10
Joint ~908 UZ 11.261765 15.905697 29.600000 Diag = 0 --> 1.00E-10
Joint ~908 RX 11.261765 15.905697 29.600000 Diag = 0 --> 1.00E-10
Joint ~908 RY 11.261765 15.905697 29.600000 Diag = 0 --> 1.00E-10
Joint ~907 UZ 11.261765 15.905697 26.400000 Diag = 0 --> 1.00E-10
Joint ~907 RX 11.261765 15.905697 26.400000 Diag = 0 --> 1.00E-10
Joint ~907 RY 11.261765 15.905697 26.400000 Diag = 0 --> 1.00E-10
Joint ~906 UZ 11.261765 15.905697 23.200000 Diag = 0 --> 1.00E-10
Joint ~906 RX 11.261765 15.905697 23.200000 Diag = 0 --> 1.00E-10
Joint ~906 RY 11.261765 15.905697 23.200000 Diag = 0 --> 1.00E-10
Joint ~905 UZ 11.169444 16.198436 20.000000 Diag = 0 --> 1.00E-10
Joint ~905 RX 11.169444 16.198436 20.000000 Diag = 0 --> 1.00E-10
Joint ~905 RY 11.169444 16.198436 20.000000 Diag = 0 --> 1.00E-10
Joint ~904 UZ 11.261765 15.905697 16.800000 Diag = 0 --> 1.00E-10
Joint ~904 RX 11.261765 15.905697 16.800000 Diag = 0 --> 1.00E-10
Joint ~904 RY 11.261765 15.905697 16.800000 Diag = 0 --> 1.00E-10
Joint ~903 UZ 11.261765 15.905697 13.600000 Diag = 0 --> 1.00E-10
Joint ~903 RX 11.261765 15.905697 13.600000 Diag = 0 --> 1.00E-10
Joint ~903 RY 11.261765 15.905697 13.600000 Diag = 0 --> 1.00E-10
Joint ~902 UZ 11.214286 16.102677 10.491429 Diag = 0 --> 1.00E-10
Joint ~902 RX 11.214286 16.102677 10.491429 Diag = 0 --> 1.00E-10
Joint ~902 RY 11.214286 16.102677 10.491429 Diag = 0 --> 1.00E-10
Joint ~901 UZ 13.431818 17.841159 7.200000 Diag = 0 --> 1.00E-10
Joint ~901 RX 13.431818 17.841159 7.200000 Diag = 0 --> 1.00E-10
Joint ~901 RY 13.431818 17.841159 7.200000 Diag = 0 --> 1.00E-10
Joint ~900 UZ 13.477273 17.859341 4.000000 Diag = 0 --> 1.00E-10
Joint ~900 RX 13.477273 17.859341 4.000000 Diag = 0 --> 1.00E-10
Joint ~900 RY 13.477273 17.859341 4.000000 Diag = 0 --> 1.00E-10
Joint ~899 UZ 11.570175 16.587912 1.56E-17 Diag = 0 --> 1.00E-10
Joint ~899 RX 11.570175 16.587912 1.56E-17 Diag = 0 --> 1.00E-10
Joint ~899 RY 11.570175 16.587912 1.56E-17 Diag = 0 --> 1.00E-10
Joint ~898 UZ 11.560714 16.528768 -2.700000 Diag = 0 --> 1.00E-10
Joint ~898 RX 11.560714 16.528768 -2.700000 Diag = 0 --> 1.00E-10
Joint ~898 RY 11.560714 16.528768 -2.700000 Diag = 0 --> 1.00E-10

Solving 2 equation blocks

Block 1 by block 1
Block 2 by block 1
Block 2 by block 2

---------------------------------
BASIC STABILITY CHECK FOR LINEAR LOAD CASES:
NUMBER OF NEGATIVE STIFFNESS EIGENVALUES SHOULD BE ZERO FOR STABILITY.
(NOTE: FURTHER CHECKS SHOULD BE CONSIDERED AS DEEMED NECESSARY,
SUCH AS REVIEWING EIGEN MODES FOR MECHANISMS AND RIGID-BODY MOTION)

NUMBER OF NEGATIVE EIGENVALUES = 0, OK.
---------------------------------


#Sap2000 #Sap2000V22
[b]esto sucede porque dentro de la formación de los EF, existe discontinuidad, pero se soluciona refinando el propio modelo, sin embargo debo precisar que son apreciaciones inexactas ya que no se cuenta con el modelo [/b]
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