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Structural Steel General Properties
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Name
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Material name
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Type
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Structural steel
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E
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Elastic modulus
Default value depends on the active code:
E = 21E4 MPa Eurocode 3 (Art 3.2.5)
E = 2.1E6 kp/cm2 EA (Art 3.1.9)
E = 29000 ksi LRFD
E = 205 kN/mm2 BS 5950 (Art 3.1.2)
E = 206 kN/mm2 GB50017 (Art 3.4.3)
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ν
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Poisson ratio (
 )
Default value depends on the active code:
ν = 0.3 Eurocode 3 (Art 3.2.5)
ν = 0.3 EA (Art 3.1.9)
ν = 0.3 LRFD
ν = 0.3 BS 5950 (Art 3.1.2)
ν = 0.3 GB50017
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ρ
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Density
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Act. time
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Activation time
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Deact. time
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Deactivation time
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G
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Shear modulus. Is calculated using the formula:
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α
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Coefficient of linear thermal expansion
Default value depends on the active code:
α = 1.2E-5 (ºC-1) Eurocode 3 (Art 3.2.5)
α = 1.2E-5 (ºC-1) EA (Art 3.1.10)
α = 1.2E-5 (ºC-1) LRFD
α = 1.2E-5 (ºC-1) BS 5950 (Art 3.1.2)
α = 1.2E-5 (ºC-1) GB50017 (Art 3.4.3)
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Damping
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Damping properties
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Steel type
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Iron alloy phase:
Austenitic
Non austenitic
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Structural Steel Specific Properties
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Thickness
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Thicknesses ranges defined for the steel properties
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Analysis σ-ε diagram
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Analysis stress-strain diagram. Each different type of stress-strain diagrams available depends on the code for which the material was defined. Apart from available diagrams supported by the codes, it is possible to define new diagrams by changing the table data.
SAε: Strain values corresponding to a point of the diagram.
SAσ: Stress values corresponding to a point of the diagram.
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Design σ-ε diagram
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Design stress-strain diagram. Each different type of stress-strain diagrams available depends on the code for which the material was defined. Apart from available diagrams supported by the codes, it is possible to define new diagrams by changing the table data.
SDε: Strain values corresponding to a point of the diagram.
SDσ: Stress values corresponding to a point of the diagram.
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Structural Steel σ-ε diagrams
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Codes
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Analysis σ-ε diagram
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Design σ-ε diagram
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EC3_05, EC3_92, CTE, LRFD, EA95, BS5950 and GB50017
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Bilinear
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Bilinear
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Eurocode 3 Structural Steel Properties
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γ0
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Resistance of Class 1, 2 or 3 cross-sections
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γ1
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Resistance of Class 4 cross-sections and member buckling
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γ2
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Resistance of net sections at bolt holes
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fy
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Yield strength
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fu
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Ultimate strength
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ε max
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Maximum allowable strain in tension
Sign criterion: + Tension, - Compression
ε max = 0.010 (default value)
If ε max = 0, there is no limit
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ε min
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Maximum allowable strain in compression
Sign criterion: + Tension, - Compression
ε min = - 0.010 (default value)
If ε min = 0, there is no limit
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