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Draft Select Beam

This engineering document selects an I-beam to support a simple beam setup. It provides the specifications of a 270x10-300x15 mm I-beam, including its geometry, material properties, and stress calculations. The beam is subjected to a 50 kN concentrated load and 6 N/mm distributed load over an 8.8 m span. Stress, shear, and deflection calculations are presented and confirm the beam meets allowable limits. The document concludes the selected I-beam section is suitable for the given load case.

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74 views1 page

Draft Select Beam

This engineering document selects an I-beam to support a simple beam setup. It provides the specifications of a 270x10-300x15 mm I-beam, including its geometry, material properties, and stress calculations. The beam is subjected to a 50 kN concentrated load and 6 N/mm distributed load over an 8.8 m span. Stress, shear, and deflection calculations are presented and confirm the beam meets allowable limits. The document concludes the selected I-beam section is suitable for the given load case.

Uploaded by

neo
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Engineering document:

Revision : A
LILAMA 18 JSC Date : 19-Dec-17
Total Page:
Job number:
SIMPLE BEAMS SELECTION Serial number:

Size I-Beam:
Web height, H = 270 mm
Web thickness, tw = 10 mm
Flange width, Bf = 300 mm
Flange thickness, tf = 15 mm
Area = 11700 mm2
Center of Gravity Xc = 150 mm
Center of Gravity Yc = 0 mm
Moment of inertial, Ix = 199.327.500,0 mm4
Moment of inertial, Iy = 67.522.500,0 mm4
Sx = 1.328.850,0 mm3
Sy = 450.150,0 mm3
Select: Beam 270x10-300x15

Design Parameters: P=50000 N


Yield strength, Fy = 235 N/mm2
Beam Simple-Span, L = 8.800 mm x=4400
Concentrate Load at point A, PA = 25.000 N
Concentrate Load at point A, PB = 25.000 N A Beam 270x10-300x15 B
Concentrate Load, P = 50.000 N
Distributed Load, w = 6 N/mm PA=25000 N L=8800 PB=25000 N
Dist. from Left to load, x = 4.400 mm
Elastic Modulus, E = 210.000 N/mm2

Beam 270x10-300x15 Member Properties:


A= 11700,00 mm2
4
d= 270,00 mm Ix = 1,993E+08 mm
3
tw = 10,00 mm Sx = 1,329E+06 mm
4
bf = 300,00 mm Iy = 6,752E+07 mm
3
tf = 15,00 mm Sy = 4,502E+05 mm

Results:

Max Bending Moments for Simple-Span: Mmax = 110.000.000 N.mm


Max Shear: Fmax = 25.000 N

Max. Bending stress at midle of Span: b = 82,78 N/mm2 OK


Max. Shear stress at Support: s = 2,14 N/mm2 OK
Maximum Deflection: max = 16,96 mm OK

Allowable Bending stress: ab = 140,72 N/mm2


Allowable Shear stress: as = 94,00 N/mm2
Allowable Deflection: a = 44,00 mm

Conclude:
Section is OK

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