Algorytm obliczania zbrojenia symetrycznego

żelbetowych przekrojów prostokątnych, mimośrodowo ściskanych

d

x

lim

,

eff

lim

,

eff

ξ

=

R-1

b

f

N

x

cd

Sd

eff

=

TAK

lim

,

eff

eff

x

x

>

NIE

NIE

2

eff

a

2

x

≤

TAK

R-3

R-5

)

(

2

2

1

2

1

a

d

f

b

f

N

d

e

N

A

A

yd

cd

Sd

s

Sd

s

s

−













+

−

=

=













−

−

=

=

1

a

d

e

f

N

A

A

2

1

s

yd

Sd

2

s

1

s

DUśY MIMOŚRÓD

MAŁY MIMOŚRÓD

STOP

d

)

1

(

2

p

lim

,

eff

⋅

ξ

−

=

A

=

10

.

d

2

x

B

lim

,

eff

⋅

+

=

b

f

e

N

p

a

d

x

d

C

cd

s

Sd

eff

⋅

⋅

+

−

+

⋅

=

1

2

lim

,













⋅

+

−

⋅

⋅

=

lim

,

1

2

2

eff

s

cd

Sd

x

e

p

a

d

b

f

N

D

∑

∑

∑

∑

∑

=

=

−

=

=

−

=

=

−

2

eff

2

s

2

s

1

s

Rd

a

2

x

przy

,

0

)

A

(

M

5

R

0

)

A

(

M

4

-

R

0

)

A

(

M

3

R

0

)

N

(

M

2

-

R

0

X

1

R

R-1, R-3

0

D

x

C

2

x

B

x

A

eff

2
eff

3
eff

=

−

⋅

⋅

+

⋅

−

⋅

d

x

eff

>

TAK

d

x

eff

=

R-1

NIE

yd

eff

eff

Sd

eff

cd

s

s

f

x

x

p

N

x

b

f

A

A

⋅

−

−

⋅

⋅

=

=

)

(

lim

,

2

1

s

STOP