Steel Beam Calculator to

1 Enter beam details

1.1 Enter steel beam span length

metres

This demo version is fixed at 1 metre.
The full version allows precise spans up to any size.

The beam span is the distance between the centres of the supports

1.2 Select steel section

Automatically calculate suitable sizes

or

Select a specific section

2 Enter load details

Load MASTER: Select load type

	Enter dimension to point load ('A' on the diagram) metres (can be zero)
Permanent load	Imposed load	Enter a name for this point load
kN	kN

Enter a name for this load
Permanent load per square metre	Imposed load per square metre	Width of roof perpendicular to beam
kN/m²	kN/m²	metres

Add another load

3 Restraints

3.1 Does the beam have lateral restraints?

Unrestrained - the beam is only restrained at its supports

Fully restrained - cast into concrete or fully restrained in some other way

Enter the positions of the restraints

Enter a buckling length

4 Factors

4.1 Variable (imposed) load safety factor

Recommended value from EN 1990:2002+A1 Eurocode - Basis of structural design (UK National annex) is 1.5

4.2 Permanent (dead) load safety factor

Recommended value from EN 1990:2002+A1 Eurocode - Basis of structural design (UK National annex) is 1.35

4.3 Moment distribution factor C1

Recommended C1 value is 1. This is the most conservative, safe value and is recommended for general use.

Change C1 value

5 Deflection limits

5.1 Variable action (imposed) deflection limit

Span /

Usually Span / 360

5.2 Total variable (imposed) & permanent load deflection limit

Span /

Usually Span / 200

Steel Beam Calculator

1.1 Enter steel beam span length

1.2 Select steel section

Load MASTER: Select load type

3.1 Does the beam have lateral restraints?

3.2 Enter the positions of restraints from the left of the beam

3.2 Enter buckling length

4.1 Variable (imposed) load safety factor

4.2 Permanent (dead) load safety factor

4.3 Moment distribution factor C1

5.1 Variable action (imposed) deflection limit

5.2 Total variable (imposed) & permanent load deflection limit

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