Structural Steel Properties
Description
Definition of the material properties for a section or beam is a three step process:
- Add the material type (concrete / reinforcing steel / etc.)
- Define a set of properties for that material type ((compressive strength etc.)
- Allocate the material properties defined in 1 & 2 to the relevant parts of the section or beam section component.
This form performs the second of these 3 stages for structural steel.
As data is entered the program checks that values are within the expected range for steel. This check will highlight any values in error by a factor of 10 more.
Form Graphic
Field Help
Nominal Yield Stress
Enter the minimum yield point or minimum yield strength of the structural steel. A warning will be issued if the value entered is unrealistic, but the value will not be rejected.
The default value is 350 MPa.
Modulus of elasticity
Enter the modulus of elasticity of the steel. The default value of 200,000MPa is obtained from Clause 6/2.2.5 of AS 5100.6.
As elastic modulus, shear modulus and the Poisson's ratio are related, a change of this value will affect one of the three elasticity parameters, in this case the shear modulus.
Poisson's Ratio, ν
Enter the value for Poisson's ratio. The default value is typical for this type of material. As elastic modulus, shear modulus and the Poisson's ratio are related, a change of this value will affect one of the three elasticity parameters, in this case the shear modulus.
Shear Modulus, G
Enter the shear modulus value. As elastic modulus, shear modulus and the Poisson's ratio are related, a change of this value will affect one of the three elasticity parameters, in this case the Poisson's ratio.
Coefficient of thermal expansion
Enter the coefficient of thermal expansion for use in temperature gradient calculations.
The default value is 0.0000117 /°C accordance with Clause 6/2.2.5 of AS 5100.6.
Density
Enter the density of the structural steel.
The default value is 77.0 kN/m3 which is equivalent to 7850 kg/m3.
Property name
The program will supply a reference name which provides an identifier to the material property set which is usually unique. This value may be edited to give a more readily recognisable name if required.