Online course "Fundamentals of designing steel structures according to SP RK EN 1993-1-1:2005/2011"

Requirements for students: basic knowledge of strength of materials and structural mechanics.

Course program

FUNDAMENTALS

1. Use of “Eurocode 0 – Fundamentals of design of load-bearing structures” (SP RK EN 1990:2002+A1:2005/2011) in design

Objective: To understand the Eurocodes safety philosophy, service life and reliability.

1. Introduction to Eurocodes.
2. Basic principles of Eurocode 0.
3. Loads and their combinations.
4. Design reliability and safety factors.
5. Practical task.

2. Introduction to Eurocode 1 (EN 1991) – Actions on structures (SP RK EN 1991-1-1:2002/2011)

Objective: Classification and types of loads. Snow, wind, emergency loads.

1. Introduction to Eurocode 1 and its place in the Eurocode system.
2. Classification of loads and design situations.
3. Permanent and variable loads (EN 1991-1-1).
4. Snow loads (EN 1991-1-3).
5. Wind loads (EN 1991-1-4).
6. Accident and seismic actions (EN 1991-1-7, EN 1998).
7. Practical task.

Topic 3. GENERAL RULES FOR BUILDINGS (EN 1993-1-1, SP RK EN 1991-1-1:2002/2011, SP RK EN 1993-1-10 Impact toughness of material and strength properties in the direction of thickness of rolled products)

Objective: Selecting the correct steel grade and ensuring service life.

1. Introduction to Eurocode 3 (SP RK) and its components.
2. Conceptual principles of design and selection of materials in the context of limit states.
3. Metallurgy of construction steels: from microstructure to macroproperties.
4. Brittle fracture and toughness requirements.
5. Anisotropy and Z-properties (Lamellar delamination).
6. Weldability and carbon equivalent.
7. Durability and corrosion protection.
8. Practical task.

CALCULATION OF ELEMENTS (EN 1993-1-1)

4. Modeling and resistance of sections according to SP RK EN 1993-1-1

Objective: Transition from efforts to section strength testing

1. Static calculation (Structural analysis):

• Elastic vs. Plastic Calculation.
• Imperfections: global (sway) and local (bow).
• Second-order effects (P-Delta): when they are important (α).

2. Classification of sections:

• 4 classes of sections.
• Classification algorithm (c/t, ε).

3. Section Checks (ULS Strength Calculation):

• Tension, compression, bending (Mc, Rd), Shear (Vc, Rd).
• Interaction of Bending and Shear (M+V).

5. Sustainability

Objective: To calculate overall stability (Buckling & LTB).

1. Introduction. Frame stability.
2. Bending buckling under central compression.

• Buckling curves (α0 - d). Imperfection factor α.
• Conditional flexibility λ and coefficient χ.
• Calculated lengths Lcr.

3. Lateral Torsional Buckling (LTB):

• Physics of the phenomenon. Critical moment.
• LTB curves and coefficient.
• Influence of moment distribution (C-factors).

4. Practical task

6. Complex stress-strain state and serviceability limit state (SLS)

Objective: To calculate compression with bending and check deflections.

1. Compression with bending (Beam-Columns):

• Interaction of two forms of instability.
• Interaction equations 6.61 and 6.62.
• Coefficients kyy, kyz (Methods 1 and 2).

2. SLS (Serviceability Standard):

• Vertical deflections.
• Horizontal movements.

CONNECTIONS (EN 1993-1-8)

7. Connections in metal structures: From simple to rigid (According to EN 1993-1-8)

Objective: To review the design of assemblies.

1. Introduction. Fundamentals of designing nodal connections of steel structures.
2. Conceptual foundations and classification of nodes.
3. Bolted connections.
4. Welded joints.
5. Hinged joints.
6. Rigid connections.
7. Semi-rigid connections.
8. Design provisions of SP RK EN 1993-1-8.
9. Practical task.

SPECIAL EFFECTS

8. Design of steel structures in seismic areas according to Eurocode 3 and Eurocode 8. Fire resistance (SP RK EN 1993-1-2)

Objective: Design for extreme conditions.

1. Objectives of earthquake-resistant design.
2. Design approaches.
3. Design concept and material requirements.
4. Calculation of steel elements under seismic impacts.
5. Fundamentals of fire safety (EN 1993-1-2).
6. Settlement provisions.
7. Protection of building structures.