pt = 1.0%; pc = 0.8%
‒1000
‒800
‒600
‒400
‒200
‒4000
‒3000
‒2000
‒1000
0
1000
2000
3000
4000
5000
6000
0
200
Pu(kN)
400
Figure 1.18 P-M interaction curves for RC section 350 × 700 (fck = 25 N/mm2, fy = 380 N/mm2).
‒1200
pt = 2.2%; pc = 1.8% pt = 2.5%; pc = 2.0%
pt = 1.8%; pc = 1.4% pt = 2.0%; pc = 1.5%
pt = 1.2%; pc = 1.0% pt = 1.5%; pc = 1.2%
600
800
1000
D = 700
1200 Mu(kN‒m)
Ast
fck = 25 N/mm2 fy = 380 N/mm2
Asc
b = 350
24 Seismic Design Aids for Nonlinear Analysis