The next generation of Eurocodes are at the final stages of technical development. This has been a long and arduous task which began several years ago, and despite approaching technical finalisation it will still be several years until new versions of the Eurocodes are published. There is currently a final opportunity to submit public comments on several parts of Eurocode 3 "Design of steel structures" as listed below.
The draft standards and a comments form can be obtained from the BSi website. For Part 1-3: Supplementary rules for cold-formed members and sheeting, comments can be sent directly to BSi following this link or you can send comments to SCI via Andrew Way.
The deadline for comments to be submitted to BSi is 24/05/2022.
Other parts of Eurocode 3 e.g. Part 1.1 'General rules and rules for buildings' and Part 1.8 'Design of joints' are further ahead in the process and have already been through this process. All three parts of Eurocode 4 are moving forward in parallel, and having (almost) completed technical development are currently going through what is primarily an editorial stage to ensure their format is correct and consistent with other Eurocodes.
As the different codes are finalised SCI will be publishing regular updates on individual rules to highlight things that have changed and, where we are aware, help designers to understand why? In due course we will be offering tools to help with the implementation of these rules.
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Steel Building Design for EC3 - Online Course
16, 18 , 24, 25, 26 May 10:00-12:00
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Fatigue Design to EC3 - Member Webinar
17 May 12:30-13:30
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Steel Frame Stability - Online Course
8 & 9 June 10:00-12:00
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Modular Construction - Member Webinar
14 June 12:30-13:30
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View all courses
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New SCI publication - The design of cold formed portal frames (P417)
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Cold formed portal frames are a very popular choice for smaller structures - lightweight, no welding of members and straightforward to erect. They do however have important difference compared with an orthodox frame fabricated from universal sections. The inevitable flexibility of the joints has a significant effect on the distribution of bending moments around the frame and on frame stability. The verification of the members themselves - usually light gauge C sections - involves the complexities of effective section properties or a reduced design stress.
This new publication describes the issues unique to cold formed portals which must be considered if the frame is to be correctly analysed and designed. The publication also sets out what end clients for these sorts of structures should expect, including site-specific variable actions (or a demonstration that the scope of pre-designed structures is appropriate). Guidance on the details expected in the completed structure is also given, notably the essential restraints to the inside flanges.
The publication contains an extensive numerical worked example of a complete design, including the determination of variable actions, frame analysis, verification of frame stability and member verifications, all in accordance with the Eurocodes. In recognition that some member verification is still completed to BS 5950, a further worked example of member verification to BS 5950-5 is included. A short commentary on the provisions of BS 5502-22 is included, as many of these types of structures are constructed as agricultural buildings.
The publication contains no new guidance on the design of portal frames, but emphasises the correct application of design rules must allow for the special features of frames constructed from cold formed members. The member verifications are intended to serve as a template for designers checking members to BS EN 1993-1-3 or BS 5950-5.
This publication is produced in Electronic format only
Purchase your publications here
SCI Corporate or Sole Trader Members can view a free PDF version here.
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Socrates was successful in his PhD viva yesterday
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Socrates Angelides successfully defended his PhD thesis focusing on the blast resilience of glazed façades on the 20th of April 2022 at the University of Cambridge. Socrates is currently continuing his research on blast loading at SCI's Energetic Materials Blast Information Group (EMBIG) through a Knowledge Transfer Partnership (KTP) with the University of Sheffield. Socrates is involved in the development of EMBlast, a blast loading software for energetic materials.
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SCI Project coordinator for Nuclear Power Plant and Modular Reactor showcase building
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Construction of the demonstration building showcasing a new structural form for nuclear power plant and small modular reactors has commenced on site. The project is coordinated by SCI and involves partners EDF, CEA, Egis, Bouygues Construction, Peikko Group Corporation and ArcelorMittal. The project is receiving funding under a grant (grant agreement No 800732) from the European Commission and from a number of industrial sponsors.
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Members Advisory Desk Service email alerts.
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The new Advisory Desk service emails sent this month included;
Advisory Desk Note - AD 393 Minimum requirements for column splices in accordance with Eurocodes
Advisory Desk Note - AD 485 Continuity of additional bar reinforcement for fire in composite floors
If you are an SCI Sole Trader or Corporate Member and not receiving these email alerts go to the SCI Information Portal and in your Profile click on notifications/alerts and select the notifications you require.
All the Advisory Desk Notes and Questions and Answers together with other technical resources are all available at all times on the SCI Information Portal.
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SCI Advisory Questions and Answers
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For SCI Sole Trader and Corporate members, SCI offers support through our Advisory Desk Service. For questions asked which we feel are pertinent to the wider member audience we publish anonymously the questions and answers.
Where some questions relate to SCI Publications we publish the question and answers in Connect.
This month our published question is about; Transient Response Factors in Vibration Analysis of Staircases
Question: A vibration analysis of a steel staircase has produced an acceptable steady-state response factor but the transient response factor is very large. What is causing this?
Answer: The assumption of impulsive loading implicit in the transient response factor analysis is invalid for typical staircases, which have higher natural frequencies than standard floor structures. SCI considers that the transient response prediction is not applicable to typical staircases. More information can be found in AD 406.
This is Advisory Question/Answer Ref No: 7169-22
For all other membership Advisory Question /Answers please visit the the SCI Information Portal.
The Advisory Desk Service is for SCI Corporate and Sole Trader Members
advisory@steel-sci.com | +44 (0) 1344 636525
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SCI Courses, Webinars and Events
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SCI Online Training Courses
Our public courses and webinars keep engineers updated with the latest developments within steel design and equip them to design competently, efficiently and safely.
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Steel Building Design to EC3
This course will be delivered over 5 sessions:
Part 1 - 16th May 2022
Part 2 - 18th May 2022
Part 3 - 24th May 2022
Part 4 - 25th May 2022
Part 5 - 26th May 2022
Timing: 10:00-12:00
This course will provide an overview of the Eurocode provisions for steel building design. The course focuses on orthodox construction, covering the primary design issues for practicing engineers. The course follows the process of determining actions, considering combinations of actions, frame analysis and the assessment of second order effects. The course will then demonstrate how the resistance of members are calculated, but also how they can be extracted immediately from resources such as the 'Blue Book'.
This course will explain:
- Loading and load combinations
- Imperfections in members and frames
- Frame stability - the significance of second order effects
- Brittle fracture
- Member resistance - classification, cross sectional and buckling checks
- Connection design
This course will equip any engineer with:
- An overview of the Eurocode suite design document, and the critical importance of the National Annex
- How the appropriate steel sub-grade is determined
- A good understanding of the important ULS and SLS load combinations from EN 1990
- A good understanding of the key parts of BS EN 1993-1-1
- A set of numerical examples covering frame stability, axial resistance, LTB and combined axial load and bending
- A good understanding of connection design to
BS EN 1993-1-8
Member Rate: £250.00 +VAT
Non Member Rate: £330.00 +VAT
To attend thise register here
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Next SCI Member webinar is;
Fatigue Design to EC3
17 May 22
Time: 12:30-13:30
This webinar will cover the fatigue phenomenon and the assessment of fatigue life. Fatigue loading and Miner's summation of fatigue damage and how it is dealt with by EN 1993-1-9 will be addressed.
Register for this event here
We may have to postpone courses and we will contact you if the course you have registered for is running on the date advertised or provide you with a new date in the future.
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Members in the news |
ArcelorMittal acquires John Lawrie Metals Ltd, the metal recycling, steel tubulars and decommissioning experts.
Increased use of scrap is a key component of ArcelorMittals strategy to lower CO2 emissions from primary steelmaking. The waterfall chart below illustrates the company's route to netzero by 2050, and the interim 2030 targets of 25% globally and 35% in Europe.
More details of the route to lower carbon primary steelmaking can be found in Climate Action Report 2 (CAR2) here and details of the acquisition here

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New Members |
SCI would like to welcome new members;
Cast Connex
Cast Connex was founded in 2007, with a mission to enable structural engineers and architects to leverage castings in their building and bridge designs. Since then, the company has put tens of thousands of steel castings into service in hundreds of structures. Cast Connex Engineers and Technical Sales personnel bring experience in structural engineering consulting and construction to each interaction with specifying practitioners and construction teams.
Cast Connex offers standardized, pre-engineered steel connection solutions ranging in applicability from strictly functional, to those ideal for use in architecturally exposed structural steel (AESS). Additionally, Cast Connex custom cast steel solutions have a virtually limitless scope in application from 5-kilogram precision-machined fittings for custom facades, to 30-tonne nodes for special structures. They are designed to address project-specific needs and can provide economy in-shop fabrication and field erection as well as create connection details that enable complex architecture. Cast Connex design-build services typically include industrial design and 3-dimensional modeling, engineering including finite-element stress analysis, casting detailing and manufacturing.
Cast Connex is a rapidly growing multinational organization. All our solutions are developed with the aim to improve overall structural performance, design aesthetics, and safety, and to simplify steel fabrication and field installation, while at the same time beautifying the spaces in which our components are used.
Cast Connex's portfolio includes countless world-class projects in every sector of construction. Some notable work includes the Salesforce Transit Center in San Francisco; 30 Hudson Yards in New York; Apple Campus in Cupertino, California; Bermuda Airport; Vancouver International Airport in Canada; Xujiahui Centre in Shanghai; and SoFi Stadium in Los Angeles. Design architects with which we've collaborated include Foster + Partners; Rogers Stirk Harbour & Partners; Renzo Piano Building Workshop; Pelli Clarke Pelli Architects; and Skidmore, Ownings and Merrill (SOM).

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SCI Publications
Our bookshop is once again open. For any hard copies of SCI Publications visit the SCI WebShop.
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The design of cold formed portal frames (P417)
Many design issues are common to all types of portal frame, the use of cold formed members brings the additional effects of connection flexibility and more involved verification of the thin steel members. This new publication describes best practice for this type of structure and includes a comprehensive worked example of a complete frame design in accordance with the Eurocodes. Reflecting some common practice, a further example demonstrates member verification in accordance with BS 5950-5.
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Design of steel portal frame buildings to Eurocode 3 (P399)
This publication deals with portal frames with more than one bay, 'hit and miss' frames, plastic analysis and design as well as elastic. It deals with issues which are not covered by BS EN 1993-1-1 on elastic checks on haunches and gives guidance of initial imperfections based on research. The publication includes a worked example covering the verification of the primary elements in a portal frame, namely column, rafter and rafter haunch. It is assumed that the reader is familiar with the anatomy of a portal frame.
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Elastic design of single span steel portal frame buildings to Eurocode 3 (P397)
This publication provides guidance on the design of portal frames in accordance with the Eurocodes, making recommendations where the design Standard is unclear. The publication covers single span, symmetric frames designed elastically and provides a comprehensive introduction to the design and detailing of portals. A fully worked example demonstrates the application of the Eurocodes covering actions, frame stability and member verification.
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SCI on Social Media
For course reminders, publication updates and article notifications follow SCI on Twitter, Instagram and LinkedIn.
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