Execution of steel structures and aluminium structures. Technical requirements for steel structures

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What is BS EN 1090-2:2018+A1:2024  – Execution of steel structures and aluminium structures – Technical requirements for steel structures about?

BS EN 1090-2:2018+A1:2024 is a European standard that specifies the technical requirements for the execution of steel structures. It is part of the BS EN 1090 series, which governs the design, manufacturing, and assembly of steel and aluminum structures across Europe. This standard ensures that steel structures are fabricated and assembled to meet stringent quality, safety, and performance criteria.

The standard outlines requirements for materials, welding, surface treatment, geometrical tolerances, inspection, and testing for steel structures. It provides a framework to ensure that the steelwork used in construction—such as buildings, bridges, and other engineering projects—meets high safety and durability standards. By adhering to these guidelines, contractors and fabricators ensure consistency, reliability, and compliance with European regulations, including CE marking requirements under the Construction Products Regulation (CPR).

Who is BS EN 1090-2:2018+A1:2024  – Execution of steel structures and aluminium structures – Technical requirements for steel structures for?

• Fabricators and Manufacturers
• Contractors and Builders
• Structural Engineers
• Quality Assurance and Control Professionals
• Welding Professionals and Inspectors
• Project Managers
• Regulatory Bodies and Certification Authorities
• Educational and Training Institutions

What does BS EN 1090-2:2018+A1:2024  – Execution of steel structures and aluminium structures – Technical requirements for steel structures cover?

Material Requirements

• Specifications for the selection of structural steel materials, including their grades and properties.
• Requirements for ensuring traceability of materials used in the fabrication process.

Execution Classes (EXC)

• Defines execution classes (EXC1 to EXC4) based on the complexity, safety requirements, and risks associated with the structure.
• Provides guidance on selecting the appropriate class for various types of projects (e.g., buildings, bridges, high-risk structures).

Welding Requirements

• Standards for welding processes, including the qualification of welding procedures and personnel.
• Specifications for weld quality levels, weld inspection, and acceptance criteria.
• Guidance on pre- and post-weld heat treatment processes.

Fabrication and Assembly

• Requirements for cutting, forming, and assembling steel components.
• Specifications for mechanical fasteners, including bolting techniques and tensioning.
• Instructions for ensuring geometric accuracy during assembly.

Surface Treatment and Protection

• Standards for surface preparation and the application of protective coatings to prevent corrosion.
• Requirements for the durability of coatings in various environmental conditions.

Geometrical Tolerances

• Permissible tolerances for dimensions, alignment, and assembly of structural elements.
• Ensures that the finished structure meets design specifications and is fit for purpose.

Inspection and Testing

• Mandates for quality control measures, including visual inspection, non-destructive testing (e.g., ultrasonic, radiographic), and destructive testing.
• Criteria for verifying compliance with welding and fabrication standards.
• Procedures for the final inspection and acceptance of completed structures.

Structural Stability and Fatigue

• Requirements for ensuring the structural stability of steel elements during execution.
• Guidance on addressing fatigue resistance in structures subjected to cyclic loading.

Sustainability and Resource Efficiency

• Encourages the use of sustainable materials and practices in steel structure execution.
• Provides guidelines for minimizing waste and optimizing material usage.

Documentation and Traceability

• Specifies the need for comprehensive documentation, including fabrication records, welding logs, and inspection reports.
• Ensures traceability of materials and processes throughout the project lifecycle.

Integration with Digital Tools

• Recommendations for using advanced technologies such as Building Information Modeling (BIM) to improve design, planning, and execution.

What has changed?

• Enhanced Welding Requirements
• Focus on Sustainability
• Improved Inspection and Testing Protocols
• Geometrical Tolerances
• Integration with Digital Technologies
• Material Specifications
• Execution Class Refinements
• Surface Treatment and Coating
• Structural Stability and Fatigue
• Documentation and Record-Keeping
• Alignment with Other Standards