ArcelorMittal R&D contributed to a research and development project related to Standardization of Safety Assessment Procedures across Brittle to Ductile Failure Modes. The objective for this research and development project, called SAFEBRICTILE, was to develop a procedure for the safety assessment of the various failure modes that are relevant for steel structures.

Several objectives to fulfil

The following objectives have been fulfilled within SAFEBRICTILE:

1. Development of an objective and consistent assessment procedure for the safety assessment of the various failure modes that are relevant for steel structures. The unified procedure will cover: modes driven by plasticity + modes driven by stability + modes driven by fracture.
2. Development of a more complex procedure in which newly developed design rules are defined by a pre-established safety factor.
3. Reassessment of several rules in Eurocode 3 covering the failure modes treated in the project by applying the developed safety assessment procedures in order to check their compliance with the target failure probability.
4. Proposal of new or improved design rules for cases where deviations from the target failure probability were observed.
5. Conceptual development and further maintenance of a European database of steel properties resulting from experimental tests.

Conclusions

The report gives an overview of the reliability assessment of the Eurocode 3 design rules carried out within the project related to cross-sectional resistance; buckling resistance of columns, beams, and beam-columns; and weld resistance. It presents adjustments to these design rules proposed whenever it was necessary. It also establishes recommendations on the statistical distributions of the relevant basic variables for steel structures compiled in a European Database of Steel Properties that was also developed within the project.

Text: Constructalia
Photos: ©European Union

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Version 3.49 of ABC: ArcelorMittal Beams Calculator is available now for free downloading.

For the design of steel structures

ABC: ArcelorMittal Beams Calculator is a free pre-design tool for use in designing a variety of steel and composite structures such as portal frames, beam and column structures, trusses, and column-beam connections. This tool allows for the calculation of steel, partially encased, composite, or integrated beams (SFB & IFB types A and B), in cold and fire conditions.

Version 3.49 is now available for download. We update our pre-design software regularly to ensure is assists you smoothly. This software complies with Eurocodes 3 and 4.

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These best practice design manuals consist of a series of technical guides for engineering offices, steel fabricators, and architects that aim at facilitating the application of the Eurocodes in the design of single-storey and multi-storey steel buildings.

The presented design manuals consist of a series of technical guides facilitating the application of the Eurocodes in the design of single-storey and multi-storey steel buildings.

These design manuals are helpful for steel fabricators and engineering offices, but the presentation of the advantages and possibilities of the use of steel also applies to architects. They provide a useful source of knowledge for designers in accordance with the Eurocodes and include topics such as numerous design details, fire engineering issues, member and connection resistance calculators, etc.

The design guides 'Single-Storey Steel Buildings' and 'Multi-Storey Steel Buildings' were produced in the framework of the European project 'Facilitating the market development for sections in industrial halls and low rise buildings (SECHALO) RFS2-CT-2008-0030', which was carried out with a financial grant from the European Union's Research Fund for Coal and Steel.

The design guides were prepared under the direction of ArcelorMittal, Peiner Träger, and Corus. The technical content was prepared by CTICM and SCI, collaborating as the Steel Alliance.

In Italy, the Fondazione Promozione Acciaio and ArcelorMittal are very active in promoting steel as the best alternative to reconstruct damaged buildings after earthquakes.

Since the middle ages, Italy has recorded almost 100 earthquakes of varying severity. Recently in L’Aquila, in Abruzzo, Umbria and Marche the country has suffered from earthquakes that have caused hundreds of fatalities and extensive damage to constructions.

Reconstruction is therefore an imperative for the Italian community. It encompasses various challenges in terms of speed of construction, cost, versatility and of course seismic resistance.

While historically Italian architects and engineers have been taught to build with concrete, the Fondazione Promozione Acciaio (FPA) and ArcelorMittal are actively promoting steel, which offers outstanding advantages over concrete, particularly in seismic environments.

In September 2016 in Bologna and in October in Firenze, Marco Tognoni, CTS coordinator and Luca Collavoli, account manager at the Milano agency gave 2 lectures on this theme to an audience of dozens of architects and engineers.

Easy to construct and deconstruct, resistant to fire, 100% recyclable, steel is the material of choice for designing buildings that cope with earthquakes because it is inherently ductile and flexible - flexing under extreme loads rather than crushing or crumbling. Furthermore, many of the beam-to-column connections in a steel building are designed principally to support gravity loads. Yet they also have a considerable capacity to resist lateral loads caused by wind and earthquakes.

As Françoise Carrara, construction market coordinator for the South-West region points out, “these awareness initiatives towards architects and engineers are very important to contribute to the development of a culture for steel in Italy”.

Indeed, our Italian teams carry out events on a regular basis to promote steel in construction in Italy, in parallel to the training sessions that FPA organises in the regions recently affected by earthquakes.