żelbetowych przekrojów prostokątnych, mimośrodowo ściskanych
x
= ξ
d
eff ,lim
eff ,lim
e
= e + 0.5h − a
1
s
tot
1
e
= e − d + a
s 2
1
s
2
R-2
2f (A e − A e )
x
= −(e − a ) + (e − a )2
yd
1
s
1
s
s 2 s2
+
eff
s2
2
s 2
2
f b
cd
NIE
TAK
x
≤ x
eff
eff ,lim
p = 1 − ξ
NIE
x
≤ 2a
eff ,lim
eff
2
R-2
TAK
f
2
A e
A = (e − a )
yd
1
s
1
s
+
s2
2
d ⋅ p ⋅ f b
cd
2
2
B =
−1f A e
f A e
yd
1
s
1
s −
yd
s2
s2
f b
p
cd
x
= −A + A2 + B
eff
2 1
( − ξ )
eff
κ =
−1
κ =
s
1.0
1 − ξ
s
eff ,lim
R-1 R-5
N
≤ f bx + f A − f A κ
N e
≤ f A (d − a )
Sd
cd
eff
yd
s2
yd
1
s
s
Sd
s 2
yd
1
s
2
R-3
N e ≤ f bx (d − 0.5x ) + f A (d − a ) Sd
1
s
cd
eff
eff
yd
s 2
2
STOP
R −
∑
1
X =
R
0
−
∑
2
M(N )
0
Rd
=
R −
∑
3
M(A )
R
0
4
M(A )
0
1
s
=
−
∑
s 2
=
R −
∑
5
M(A )
,
0 przy x
a
2
s 2
=
eff =
2