Option: Horizontal/Vertical
|
Selection of the response spectra to be generated |
Type
|
Type of the response spectrum.
Sismo ultimo de calculo |
Sismo frecuente de calculo
Sismo de construcción
|
TA = K C/10
|
TA = K C/s0
|
TB = K C/2.5
|
TB = K C/5
|
TC = K (2 + C)
|
TC = K (1 + 0.5C)
|
Selecting Type and Ground Type will automatically fill the default values of TA, TB and TC according to above definitions. User-defined values can be given when selecting the option User-defined in Type.
|
Ground type
|
Ground type of the response spectrum.
Tipo de terreno |
Coeficiente C |
I |
1.0 |
II |
1.3 |
III |
1.6 |
IV |
2.0 |
|
K (-) |
Terrain Coefficient [1.0 ; 1.3] |
TA(s)
|
Lower limit of the period of the constant spectral acceleration branch |
TB(s)
|
Upper limit of the period of the constant spectral acceleration branch |
TC(s)
|
Value defining the beginning of the constant displacement response range of the spectrum (in seconds) |
Damping ratio (%)
|
Viscous damping ratio in terms of percent ( > 1 ) |
ny (-)
|
Damping correction factor (dimensionless)
(Evaluated from Damping ratio and informatively displayed)
|
Output variable
|
Name of the variable that describes the response spectrum
A two-digit alpha-numeric suffix can be added to that names.
The default name will be set up as NCSE07Sa and NCSE07Sva respectively.
|