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W40x183

Depth

d

[in]

Flange Width

b_f

[in]

Flange Thickness

t_f

[in]

Web Thickness

t_w

[in]

Fillet Radius

r_1

[in]

11.8

1.2

0.65

1.18

Weight

W

[lb/ft]

Area

A

[in²]

St. Venant Torsional Constant

J

[in⁴]

Warping Constant

C_w

[in⁶]

183

53.3

19.3

118000

Moment of Inertia

I

[in⁴]

Elastic Section Modulus

S

[in³]

Plastic Section Modulus

Z

[in³]

Radius of Gyration

r

[in]

13200

675

15.7

774

331

2.49

88.3

Polar

13531

664

Member Capacities

Parameters

Material:

A992

Fy50 Fu65

Effective Length (Lx)

Effective Length (Ly)

[Controls]

Effective Length (Lz)

Width-to-Thickness Ratio

Load Type	Flange	Web
Compression	nonslender	slender
Flexure (Major Axis)	compact	compact
Flexure (Minor Axis)	compact	Not Applicable

Width-to-Thickness (Axial Compression)

	Case	Description of Element	Width-to-Thickness Ratio	Limiting Width-to-Thickness Ratio λr (nonslender/slender)
Unstiffened Elements	1	(1) Flanges of rolled I-shaped sections (2) Plates projecting from rolled I-shaped sections (3) Outstanding legs of pairs of angles connected width continuous contact (4) Flanges of channels (5) Flanges of tees	b/t = 4.9	$0.56 \sqrt{\dfrac{E}{F_y}}$ = 13.5
	2	(1) Flanges of built-up I-shaped sections (2) Plates or angles legs projecting from built-up I-shaped sections	b/t	$0.64 \sqrt{\dfrac{k_c E}{F_y}}$
	3	(1) Legs of single angle (2) Legs of double angles width separators (3) All other unstiffened elements	b/t	$0.45 \sqrt{\dfrac{E}{F_y}}$
	4	Stems of tees	d/t	$0.45 \sqrt{\dfrac{E}{F_y}}$
Stiffened Elements	5	Webs of doubly symmetric rolled and built-up I-shaped sections and channels	h/tw = 60.0	$0.75 \sqrt{\dfrac{E}{F_y}}$ = 18.1
	6	Walls of rectangular HSS	b/t	$1.49 \sqrt{\dfrac{E}{F_y}}$
	7	Flange cover plates between lines of fasteners or welds	b/t	$1.40 \sqrt{\dfrac{E}{F_y}}$
	8	All other stiffened elements	b/t	$1.49 \sqrt{\dfrac{E}{F_y}}$
	9	Round HSS	D/t	$0.11 \dfrac{E}{F_y}$

Reference: ANSI/AISC 360-22. Table B4.1a Width-to-Thickness Ratios: Compression Elements Members Subjected to Axial Compression