ESPECTRO SISMICO CFE

E S P E C T R O D E R E S P U E S T A

Zona sismica Tipo de suelo c Ta (s) Tb (s) r Q F.C.R.B II 0.04 0.16 0.3 1.5 0.67 2 1

Q' = (Q) (F.C.R.) = 2c' = c / Q' = 0.08

T a a x g (m/s²)0.00 0.0400 0.39240.10 0.0533 0.52320.20 0.0667 0.65400.30 0.0800 0.78480.40 0.0800 0.78480.50 0.0800 0.78480.60 0.0800 0.78480.70 0.0800 0.78480.80 0.0800 0.78480.90 0.0800 0.78481.00 0.0800 0.78481.10 0.0800 0.78481.20 0.0800 0.78481.30 0.0800 0.78481.40 0.0800 0.78481.50 0.0800 0.78481.60 0.0766 0.75171.70 0.0736 0.72201.80 0.0708 0.69501.90 0.0683 0.67042.00 0.0660 0.64782.10 0.0639 0.62712.20 0.0620 0.60802.30 0.0602 0.59022.40 0.0585 0.57372.50 0.0569 0.55832.60 0.0554 0.54392.70 0.0541 0.53042.80 0.0528 0.51772.90 0.0515 0.50573.00 0.0504 0.49443.10 0.0493 0.48373.20 0.0483 0.47363.30 0.0473 0.46403.40 0.0464 0.45483.50 0.0455 0.44613.60 0.0446 0.43783.70 0.0438 0.42993.80 0.0430 0.42233.90 0.0423 0.41514.00 0.0416 0.4081

Nota: Cambiar valores solo en celdas amarillas.

ao

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ESPECTRO SISMICO

Periodo Natural (s)

Ac

ele

rac

ion

de

l T

err

en

o (

m/s

²)

Nomenclatura:

F.C.R. = Factor por no satisfacer las condiciones de regularidad (M.D.O.C. C.F.E. seccion 3.4.3).T = Periodo Natural de Interes (s).ao = coeficiente de aceleracion del terreno (m/s²).Ta y Tb = Periodos caracteristicos que limitan la meseta (s)r = Exponente que define la parte curva del espectro de diseño.g = aceleracion de la gravedad (9.81 m/s²).

a=ao+(c−ao )⋅TT a;

a=c ;

a=c⋅[T bT ]r

;

T <T a

T a≤T≤T b

T >T bsi

si

si

Expresiones según M.D.O.C. C.F.E. seccion 3.3.2

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ESPECTRO SISMICO CFE