Steel Structures Manual

Practical steel design calculations — multi-standard, multi-language

Choose a module

🟦

Steel Materials

Yield/fu/elastic modulus of standard steel grades per country standard.

EC3KDSJIS
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Cross-Sections

Section properties and standard rolled-section tables.

AIyWy
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Beam Design

Bending, shear, deflection and class checks (EC3).

Mc,RdVc,Rd
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Column Design

Axial compression and flexural buckling (EC3).

Nc,RdNb,Rd
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Beam–Column (N+M)

Combined axial compression and bending interaction (EC3 §6.2/§6.3).

Npl,RdχLT
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Bolted Connection

Bearing, shear and tension resistance of bolt groups (EC3-1-8).

Fv,RdFb,Rd
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Welded Connection

Fillet weld resistance (EC3-1-8).

fw,Rda

Tension Member

Gross yielding and net section fracture (EC3-1-1).

Nt,RdNu,Rd
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Panel Zone

Beam–column joint panel-zone web shear (EC3).

Vc,Rdβ
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Advanced Connections

Block shear, slip-resistant bolts, and end-plate moment capacity.

Fbs,RdFs,RdMt,Rd
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Composite Section

Steel–concrete composite beam, transformed section.

nI_t