L 305x305x31.8 L 12x12x1-1/4

United States

Dimensions

305 mm

long leg width

305 mm

short leg width

31.8 mm

thickness

tan(α)

inclination of principal axis of inertia

Secondary Dimensions

k_des

49.8 mm

design distance including flange thickness and web fillet

k_det

49.2 mm

detailing distance including flange thickness and web fillet

Properties

143 kg/m

weight

18,300 mm²

area

x_o

71.8 mm

shear center distance to centroid

e_o

15.9 mm

shear center distance to edge

x-x Axis

I_x

159ᴇ6 mm⁴

moment of inertia

S_x

731,000 mm³

elastic section modulus

Z_x

1.32ᴇ6 mm³

plastic section modulus

r_x

93 mm

radius of gyration

87.6 mm

distance from edge to centroidal axis

y_p

30 mm

vertical distance from edge to plastic neutral axis

y-y Axis

I_y

159ᴇ6 mm⁴

moment of inertia

S_y

731,000 mm³

elastic section modulus

Z_y

1.32ᴇ6 mm³

plastic section modulus

r_y

93 mm

radius of gyration

87.6 mm

distance from edge to centroidal axis

x_p

30 mm

horizontal distance from edge to plastic neutral axis

z-z Axis

I_z

63.3ᴇ6 mm⁴

moment of inertia

S_z

510,000 mm³

elastic section modulus

r_z

58.7 mm

radius of gyration

w-w Axis

I_w

254ᴇ6 mm⁴

moment of inertia

S_w

1.19ᴇ6 mm³

elastic section modulus

r_w

118 mm

radius of gyration

Torsion

6.2ᴇ6 mm⁴

torsional constant

C_w

43ᴇ9 mm⁶

warping constant

W_no

0 mm²

normalized warping function

r_o

166 mm

polar radius of gyration about the shear center

Additional Properties

9.6

slenderness ratio

0.627

flexural constant

z_A

204 mm

distance from point a to center of gravity (z-axis)

z_B

0 mm

distance from point b to center of gravity (z-axis)

z_C

204 mm

distance from point c to center of gravity (z-axis)

w_A

103 mm

distance from point a to center of gravity (w-axis)

w_B

124 mm

distance from point b to center of gravity (w-axis)

w_C

103 mm

distance from point c to center of gravity (w-axis)

S_wA

1.24ᴇ6 mm³

elastic section modulus

S_wC

1.24ᴇ6 mm³

elastic section modulus

S_zA

615,000 mm³

elastic section modulus

S_zB

510,000 mm³

elastic section modulus

S_zC

615,000 mm³

elastic section modulus

Allowable Strength Design

Beam Length

Steel Grade

Material

F_y

345 N/mm²

yield strength

F_u

448 N/mm²

ultimate tensile strength

Major Axis Bending

M_n

Ω_b

177 kN-m

available flexural strength

V_n

Ω_v

1,200 kN

available shear strength

W_max

475 kN

maximum uniform load

Open in beam calculator →

P_max

238 kN

maximum point load

Open in beam calculator →

Minor Axis Bending

M_n

Ω_b

177 kN-m

available flexural strength

V_n

Ω_v

1,200 kN

available shear strength

W_max

475 kN

maximum uniform load

Open in beam calculator →

P_max

238 kN

maximum point load

Open in beam calculator →

Axial Strength

P_n

3,080 kN

available tensile strength

P_n

Ω_c

3,110 kN

available compressive strength

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