ST 255x71.5 ST 10x48

United States

Dimensions

259 mm

depth

d_det

257 mm

depth (detailing value)

183 mm

flange width

b_f,det

184 mm

flange width (detailing value)

t_f

23.4 mm

flange thickness

t_f,det

23.8 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

44.4 mm

design distance including flange thickness and web fillet

k_det

44.4 mm

detailing distance including flange thickness and web fillet

Properties

71.4 kg/m

weight

9,100 mm²

area

x_o

0 mm

shear center distance to centroid

e_o

91.4 mm

shear center distance to edge

x-x Axis

I_x

59.5ᴇ6 mm⁴

moment of inertia

S_x

333,000 mm³

elastic section modulus

Z_x

605,000 mm³

plastic section modulus

r_x

80.8 mm

radius of gyration

79.5 mm

distance from edge to centroidal axis

y_p

34.3 mm

vertical distance from edge to plastic neutral axis

y-y Axis

I_y

10.4ᴇ6 mm⁴

moment of inertia

S_y

114,000 mm³

elastic section modulus

Z_y

205,000 mm³

plastic section modulus

r_y

33.8 mm

radius of gyration

91.4 mm

distance from edge to centroidal axis

x_p

91.4 mm

horizontal distance from edge to plastic neutral axis

Torsion

1.73ᴇ6 mm⁴

torsional constant

C_w

4.03ᴇ9 mm⁶

warping constant

W_no

0 mm²

normalized warping function

r_o

111 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

3.91

slenderness ratio

12.7

slenderness ratio

0.625

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

68.7 kN-m

available flexural strength

V_n

Ω_v

652 kN

available shear strength

W_max

288 kN

maximum uniform load

Open in beam calculator →

P_max

144 kN

maximum point load

Open in beam calculator →

Minor Axis Bending

M_n

Ω_b

68.7 kN-m

available flexural strength

V_n

Ω_v

529 kN

available shear strength

W_max

180 kN

maximum uniform load

Open in beam calculator →

P_max

90.1 kN

maximum point load

Open in beam calculator →

Axial Strength

P_n

1,530 kN

available tensile strength

P_n

Ω_c

984 kN

available compressive strength

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