What is EN 10219-2:2019-Cold formed welded steel structural hollow sections -Tolerances, dimensions and sectional properties?
EN 10219-2:2019 specifies the technical delivery conditions for cold formed welded structural hollow sections of non-alloy and fine grain steels. Part 2 of this standard focuses specifically on tolerances, dimensions, and sectional properties of these steel structural hollow sections.
The standard applies to circular, square, and rectangular hollow sections used in construction and structural engineering. It covers both hot-finished and cold-formed hollow sections. However, Part 2 specifically addresses the requirements for cold-formed welded hollow sections.
Here are some key aspects covered by EN 10219-2:2019:
Tolerances: The standard defines the permissible tolerances for dimensions such as outside diameter, wall thickness, corner radii, and mass of the hollow sections. These tolerances ensure that the manufactured sections meet the specified requirements and allow for proper fit and compatibility during construction.
Dimensions: EN 10219-2 provides details on the range of dimensions for circular, square, and rectangular hollow sections. It specifies the range of sizes available for each shape. Also, provides guidelines for measuring and specifying these dimensions accurately.
Sectional Properties: The standard includes information on the sectional properties of the cold-formed welded steel hollow sections. This includes properties such as cross-sectional area, moment of inertia, modulus of elasticity, torsional stiffness, and more. These properties are essential for structural analysis and design purposes.
Therefore, The purpose of EN 10219-2:2019 is to ensure the quality, compatibility, and consistency of cold-formed welded steel structural hollow sections used in various construction projects. It provides guidance for manufacturers, designers, and engineers regarding the tolerances, dimensions, and sectional properties of these sections, facilitating their safe and effective use in building and infrastructure applications.
Requirements of EN 10219-2:2019
Tolerances:
Outside dimensions: The standard defines tolerances for the outside dimensions of circular, square, and rectangular hollow sections, including the outside diameter or width, and the wall thickness.
Straightness: It provides permissible deviations for straightness of the hollow sections.
Corner radii: EN 10219-2 specifies tolerances for the corner radii of the sections to ensure uniformity and compatibility during construction.
Mass: The standard establishes tolerances for the mass of the hollow sections.
Dimensions:
Outside dimensions: The standard defines the range of outside dimensions for circular, square, and rectangular hollow sections, including the diameter, width, and height.
Wall thickness: It specifies the range of permissible wall thicknesses for the sections.
Length: EN 10219-2 provides guidelines for measuring and specifying the length of the hollow sections.
Sectional Properties:
Cross-sectional area: The standard specifies the minimum and maximum cross-sectional areas for the hollow sections.
Moment of inertia: EN 10219-2 provides the required values for the moment of inertia of the sections.
Torsional properties: It includes information on the torsional stiffness and torsional moment of inertia of the hollow sections.
Designation symbols: The standard defines the symbols used to designate the sectional properties.
These requirements aim to ensure that cold-formed welded steel structural hollow sections produced and used in construction projects meet the specified tolerances, dimensions, and sectional properties. Compliance with these requirements helps ensure the structural integrity and compatibility of the sections, facilitating their safe and effective use in various building and infrastructure applications.
Benefits of EN 10219-2:2019
Quality Assurance: The standard provides a set of guidelines and requirements that manufacturers must adhere to when producing cold-formed welded steel structural hollow sections. By following these specifications, the quality and consistency of the sections are ensured. This helps architects, engineers, and contractors have confidence in the structural integrity of the materials used in their projects.
Compatibility and Interchangeability: EN 10219-2 establishes tolerances for outside dimensions, wall thickness, and corner radii of hollow sections. This ensures that the sections manufactured by different producers are compatible and interchangeable. It allows for easy integration and assembly during construction, simplifying the overall process.
Precise Dimensional Control: The standard provides clear guidelines for the dimensions of circular, square, and rectangular hollow sections. By specifying the permissible tolerances, it helps achieve precise dimensional control during manufacturing. This accuracy is crucial for ensuring proper fit, alignment, and connection of the sections in structural applications.
Structural Analysis and Design: EN 10219-2 includes information on the sectional properties of cold-formed welded steel hollow sections, such as cross-sectional area, moment of inertia, and torsional properties. These properties are vital for structural analysis and design calculations. By providing standardized sectional properties, the standard facilitates accurate engineering calculations and ensures the structural stability and performance of the designed systems.
Safety and Reliability: The use of cold-formed welded steel structural hollow sections that comply with EN 10219-2 contributes to the overall safety and reliability of structures. The standard’s requirements help ensure that the sections are manufactured within defined tolerances, which reduces the risk of dimensional inconsistencies and material defects. This, in turn, enhances the structural stability, durability, and overall safety of the constructed buildings and infrastructure.
EN 10219-2:2019 provides numerous benefits, including quality assurance, compatibility, precise dimensional control, facilitation of structural analysis and design, and improved safety and reliability. It enables the use of standardized, high-quality cold-formed welded steel structural hollow sections in construction projects, leading to efficient and robust structures.
Who needs EN 10219-2:2019-Cold formed welded steel structural hollow sections – Part 2: Tolerances, dimensions and sectional properties?
Manufacturers: Manufacturers of cold-formed welded steel structural hollow sections are directly impacted by EN 10219-2. They need to comply with the standard’s requirements for tolerances, dimensions, and sectional properties during the production process. Adhering to the standard ensures that their products meet the specified quality and performance criteria, enhancing their market credibility.
Designers and Engineers: Architects, structural engineers, and designers play a crucial role in specifying and designing structures that incorporate cold-formed welded steel structural hollow sections. They rely on the standard to ensure accurate and standardized dimensional information, tolerances, and sectional properties. The standard provides them with reliable data to perform structural analysis, design calculations, and ensure the compatibility and integrity of the sections within the overall structure.
Contractors and Builders: Contractors and builders who are responsible for the construction and assembly of structures utilize the standard to ensure proper fit and compatibility during the installation of cold-formed welded steel structural hollow sections. The standard’s guidelines for tolerances and dimensions enable them to verify the quality and correctness of the materials used in the construction process, ensuring compliance with industry standards.
Regulatory Authorities: Regulatory authorities and building code officials may refer to EN 10219-2 when establishing codes and regulations related to the use of cold-formed welded steel structural hollow sections. The standard helps in setting quality benchmarks and ensuring the safety and reliability of structures built using these sections.
Inspectors and Quality Control Personnel: Inspectors and quality control personnel involved in the construction industry rely on EN 10219-2 to assess the compliance of cold-formed welded steel structural hollow sections with the specified tolerances, dimensions, and sectional properties. They use the standard as a reference to verify the quality of the sections during inspections and quality control processes.
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