Simple Spreader Beam Calculation

Simple Spreader Beam Calculation Arrangement

Beam Details

Hook Load = 363.0 kN

Type

SHShf

Size

25 x 25 x 2

Material

S275

Yield E Sling Length =

4.80 m Height = 4.16 m

Angle (degrees) =

60

Beam

Length =

4.80 m

181.5 kN

181.5 kN

Loads

275

N/mm²

205000

N/mm²

Mass / m

M

1.41

kg/m

Depth

h

25

mm

Width

b

25

mm

Web thickness

s

2

mm

Flange thickness

t

2

mm

Root radius

r

3

mm

Depth between fillets

d

19

mm

Second Moment of Area (x-x)

Ix

1.56

cm4

Second Moment of Area (y-y)

Iy

1.56

cm4

Radius of gyration (x-x)

rx

0.932

cm

Radius of gyration (y-y)

ry

0.932

cm

Elastic modulus (x-x)

Zx

1.25

cm3

Sling Load

209.6 kN

Elastic modulus (y-y)

Zy

1.25

cm3

Compression on beam

104.8 kN

Area of section

A

1.8

cm2

Slenderness ratio

L/rx

515

Slenderness ratio

L/ry

515

Self weight of Beam

( 6.768 kg )

0.0138321 kN/m

Beam Stress pcy

8 N/mm2

(for S275)

pcx

8 N/mm

2

(for S275)

184 N/mm2

(for S275)

Bending str

> > <

fc

582.2 N/mm2

FAIL

fc

582.2 N/mm

FAIL

fc

2

31.9 N/mm2

PASS

Buckling Load Check - Ideal struts no eccentricity or initial curvature Euler failure:

x-x

Failure load

1.37 kN

8 N/mm2

Rankine Gordon:

x-x

Failure load

1.34 kN

7 N/mm2

Euler failure:

y-y

Failure load

1.37 kN

8 N/mm2

(Theory applicable) (Theory applicable)

AAF15

Calculation Sheet Doc No: Project:

Job No.

Client:

By / date:

BC

Title:

Sheet no:

1

02-Feb-08 of

1