ST 305x90 ST 12x60.5

United States

Dimensions

312 mm

depth

d_det

311 mm

depth (detailing value)

204 mm

flange width

b_f,det

203 mm

flange width (detailing value)

t_f

27.7 mm

flange thickness

t_f,det

27 mm

flange thickness (detailing value)

t_w

20.3 mm

web thickness

t_w,det

20.6 mm

web thickness (detailing value)

Secondary Dimensions

k_des

50.8 mm

design distance including flange thickness and web fillet

k_det

50.8 mm

detailing distance including flange thickness and web fillet

Properties

90 kg/m

weight

11,500 mm²

area

x_o

0 mm

shear center distance to centroid

e_o

102 mm

shear center distance to edge

x-x Axis

I_x

108ᴇ6 mm⁴

moment of inertia

S_x

493,000 mm³

elastic section modulus

Z_x

893,000 mm³

plastic section modulus

r_x

97 mm

radius of gyration

92.2 mm

distance from edge to centroidal axis

y_p

32 mm

vertical distance from edge to plastic neutral axis

y-y Axis

I_y

17.3ᴇ6 mm⁴

moment of inertia

S_y

169,000 mm³

elastic section modulus

Z_y

297,000 mm³

plastic section modulus

r_y

38.9 mm

radius of gyration

102 mm

distance from edge to centroidal axis

x_p

102 mm

horizontal distance from edge to plastic neutral axis

Torsion

2.66ᴇ6 mm⁴

torsional constant

C_w

7.38ᴇ9 mm⁶

warping constant

W_no

0 mm²

normalized warping function

r_o

131 mm

polar radius of gyration about the shear center

Additional Properties

t_w,det

11.1 mm

detailing value of web thickness divided by 2

b_f

2t_f

3.69

slenderness ratio

15.4

slenderness ratio

0.64

flexural constant

WG_i

102 mm

workable gage for inner flange holes

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

102 kN-m

available flexural strength

V_n

Ω_v

786 kN

available shear strength

W_max

428 kN

maximum uniform load

Open in beam calculator →

P_max

214 kN

maximum point load

Open in beam calculator →

Minor Axis Bending

M_n

Ω_b

102 kN-m

available flexural strength

V_n

Ω_v

701 kN

available shear strength

W_max

267 kN

maximum uniform load

Open in beam calculator →

P_max

134 kN

maximum point load

Open in beam calculator →

Axial Strength

P_n

1,930 kN

available tensile strength

P_n

Ω_c

1,420 kN

available compressive strength

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