Table 2 Calculation of aE.

From: Linear elastic iterative method for stability ultimate capacity of equal-leg angle towers

T/b

fy (Mpa)

Weak axis (z-axis)

Strong axis (y-axis)

\(f_{{y\min }}^{\prime}\)

ρ

aEy (y-axis)

aEz (z-axis)

λZ

λC-Z

\(f_{{yZ}}^{\prime}\)

λY

λC-Y

\(f_{{yY}}^{\prime}\)

0.2

235

30

0.32

204.4

15

0.162

211.29

204.4

1

0.02

0.09

0.2

460

30

0.45

383.53

15

0.227

409.24

383.5

1

0.04

0.17

0.2

235

150

1.62

70.99

75

0.812

162.09

70.99

1

0.2

0.80

0.2

460

150

2.27

70.99

75

1.136

243.56

70.99

1

0.2

0.80

0.05

235

30

0.32

204.4

15

0.162

211.29

204.4

0.77

0.02

0.09

0.05

460

30

0.45

383.53

15

0.227

409.24

383.5

0.60

0.03

0.10

0.05

235

150

1.62

70.99

75

0.812

162.09

70.99

1

0.2

0.80

0.05

460

150

2.27

70.99

75

1.136

243.56

70.99

1

0.2

0.80