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fc   25 Mpa 2500 T/m2 in cmfy   420 Mpa 42000 T/m2 20 50.80Ec 23500 Mpa ### T/m2Es   ### Mpa ### T/m2 in2 cm2β1   0.85   1.58 10.19

0.9

0.75ft-kips Tm

0.016 0 190.6 25.85Rnt 569.75 T/m2

psi mpad`   2 cm 6000 41.4cc   6.6 cm

!"E$%&

'(s ) * d M+ Mn Mnt M, Rn ρ f `s   s cacm cm cm Tm Tm Tm Tm T/m2 T/m2 cm2

30 40   33.4   2.28   2.53 19.1 0.0 75.70 0.0018 42000 1.84

%RTE+ c s s ma d)s amas   sp cac

T T T T T cm cm3.2   8.35 0 33.4   6 2   -0   8.35 0 33.4   6 2   -

%"M&ETERM$&$& E E'":M$E&T% E" $TEM

+ "+ ; istmaT cm T m <   spa=.

2.35 0.336 0.96 3 0.2742   &%

tminaci>n d ?

) * "c c(f Ec E@/"ccm cm m fis T/m2 Mpa/cm ca ad(p( s+p 0 0 0 0.7 23500 0EA00

2EA072.5   2.5

( $nf 30 60 4 0.7 23500 2EA07iBa $=C 0 0 0 0.35 23500 0EA00

9EA06iBa d 30 40 1.5 0.35 23500 9EA06

) * "c c(f Ec E@/"ccm cm m fis T/m2 Mpa/cm ca ad(p

( s+p 30 60 4 0.7 23500 2EA073EA07

4.2   1.0( $nf 40 40 4 0.7 23500 9EA06iBa $=C 0 0 0 0.35 23500 0EA00

7EA06iBa d 30 60 6 0.35 23500 7EA06

φ fi(nφ c(t

ρ t

+ ap(y(

Σ'+ ∆(

Σ E@/"c ψ  ψ 

Σ E@/"c ψ D ψ D

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1.8

a( d ? 0.88 istma dspa=a)

a( d ? 1.51 istma indspa=a) Rsticci(n n am)(s tm(s

2.53 tic+ad( n +n tm(

ψ m

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C