Espectro Sismico Cfe

  • June 2020
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S

P

Q' = (Q) (F.C.R.) = c' = c / Q' = T 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.10 2.20 2.30 2.40 2.50 2.60 2.70 2.80 2.90 3.00 3.10 3.20 3.30 3.40 3.50 3.60 3.70 3.80 3.90 4.00

E

C

T

R

ao

O

D

c 0.16

0.04

E

R

Ta (s) 0.3

E Tb (s) 1.5

2 0.08 a 0.0400 0.0533 0.0667 0.0800 0.0800 0.0800 0.0800 0.0800 0.0800 0.0800 0.0800 0.0800 0.0800 0.0800 0.0800 0.0800 0.0766 0.0736 0.0708 0.0683 0.0660 0.0639 0.0620 0.0602 0.0585 0.0569 0.0554 0.0541 0.0528 0.0515 0.0504 0.0493 0.0483 0.0473 0.0464 0.0455 0.0446 0.0438 0.0430 0.0423 0.0416

S

P

U

E

S

r 0.67

T Q 2

A F.C.R. 1

ESPECTRO SISMICO a x g (m/s²) 0.3924 0.5232 0.6540 0.7848 0.7848 0.7848 0.7848 0.7848 0.7848 0.7848 0.7848 0.7848 0.7848 0.7848 0.7848 0.7848 0.7517 0.7220 0.6950 0.6704 0.6478 0.6271 0.6080 0.5902 0.5737 0.5583 0.5439 0.5304 0.5177 0.5057 0.4944 0.4837 0.4736 0.4640 0.4548 0.4461 0.4378 0.4299 0.4223 0.4151 0.4081

0.9000 0.8000

Aceleracion del Terreno (m/s²)

E

Nota: Cambiar valores solo en celdas amarillas. Zona sismica Tipo de suelo B II

0.7000 0.6000 0.5000 0.4000 0.3000 0.2000 0.1000 0.0000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Periodo Natural (s)

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).

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

T a=a o  c−a o ⋅ ; Ta si

a=c ;

[ ]

a=c⋅

T T a

si

T a≤T ≤T b

r

Tb ; T

si

T T b

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