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SCI CONNECT – July 2020

SCI are pleased to announce that for its Sole Trader and Corporate Members we are now providing recordings of the Member-only webinars.

We appreciate that sometimes it is difficult to watch the live streamed webinars and so the recordings will be made available in the week following a live webinar. The recording will remain available to view until the next live member webinar is delivered, recorded and uploaded.

We hope by making these available our overseas members with different timelines, those that may have missed the live recording, or those who wish to watch the webinar again will now have the opportunity to do so during this period.

The only difference between the live and the recorded webinar is that for the recorded webinars we are unable to support questions or CPD certificates.

The recordings will be made available through your 'profile' section on the SCI Information Portal. If you haven't already, register for the Portal using your company email to access the recordings.

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New Logo for Light Steel Frame Certification Scheme
South China University of Technology
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Steel Connection Design Steel Design at Elevated Temperatures
5 Aug
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In line with many other sectors, UK structural engineers' are facing up to the climate emergency and taking action; 170 organisations have already signed up to the Institution of Structural Engineers' declaration on the climate and biodiversity emergency.

The steel production and steel construction sectors have a significant role to play to help these organisations deliver on the commitments they have made.

Leading European steel makers have developed and embarked upon ambitious strategies to deliver low and zero-carbon steel by 2050 but the new technologies required, which include hydrogen reduction and carbon capture and storage, will take time and significant investment.

Easier and faster action can be taken by the steel construction supply chain by reducing the demand for steel while still delivering safe, high quality buildings. These actions generally relate to improving material efficiency through:

  1. Better and less conservative design
  2. Greater reuse of steel building components.

SCI has been a leading advocate of structural steel reuse and has recently completed its latest collaborative EU project on reuse called PROGRESS which focussed on single-storey, steel framed buildings which currently present the highest potential for reuse.

The scope of PROGRESS, which included secondary steelwork and metal cladding systems in addition to the primary structure, was split into the reuse of existing buildings and how to facilitate the future reuse of new buildings. This division reflects the challenges, and hence the solutions required, of each scenario.

Regarding existing buildings, workstreams included:

  1. Pre-deconstruction auditing and safe and efficient deconstruction practice
  2. The suitability of steel components reclaimed from existing buildings for reuse
  3. Sampling strategies and testing methods for reclaimed steel products.

A protocol recommending data collection, inspection and testing to ensure that reclaimed structural steelwork can be reused with confidence, has been developed by SCI (with financial support from Cleveland Steel & Tubes) and is freely available here.

Concerning design to facilitate future reuse, the work focussed on:

  1. How to design reusable single-storey steel frame buildings, systems and components to facilitate their future reuse including standardisation
  2. Development of innovative, demountable and reusable cladding systems
  3. The role of BIM to facilitate future reuse.

As part of the project SCI has developed a prototype on-line portal for trading reclaimed structural steelwork and for storing the relevant structural steel information (BIM datasets) from new buildings to facilitate their future reuse. SCI is keen to hear from any organisations who can help us commercialise this service.

PROGRESS also addressed other issues including the environmental and economic assessment of steel reuse and importantly what circular economy business models are required to facilitate mainstream reuse.

Dissemination was also a key part of PROGRESS and despite the cancellation of several of the final physical workshops due to the pandemic, SCI organised and hosted a series of webinars during May. All presentations are freely available from the ECCS website.

The design guidance from the PROGRESS project is being drafted as a comprehensive ECCS design guide which should be published later in 2020.

Many SCI members are signatories to the UK structural engineers climate emergency declaration and hopefully are thinking more about steel reuse and also benefitting from the guidance and expertise developed by SCI.

For more information please contact Michael Sansom

Structural steel reuse protocol, SCI P427 and Design to facilitate future reuse: bolted haunch and apex connections

Left: Structural steel reuse protocol, SCI P427 | Right: Design to facilitate future reuse: bolted haunch and apex connections

MRS Progress

Prototype development and testing of a demountable and reusable cladding system (RWTH Aachen University)

New Logo for Light Steel Frame Certification Scheme

The SCI/NHBC Stage 1 System Certification scheme is specifically for light steel framing systems in accordance with Chapter 6.10 of the NHBC Standards. However, until now there has not been a specific logo for companies to use once they have achieved the certificate. This situation has now been addressed with the creation of a new logo. This will also help to differentiate between SCI's other assessment and certification schemes of 'SCI Assessed' and 'SCI Product Certification' which are separate schemes.

Going forward the new logo will be used on the full technical certificates and also on the one-page display certificates which are issued with the scheme. Companies with a valid certificate will also be able to use the new logo individually on their marketing materials and websites etc.

The new style certificates will be issued as new certifications are achieved and as old-style certificates are successfully renewed. The first two companies to be awarded certificates in the new style are:

Any companies with an existing valid Stage 1 Certificate can contact SCI at to request the new SCI/NHBC Stage 1 System Certification logo.

Note: Readers may be aware of the scheme recently launched by NHBC called 'NHBC Accepts'. This is a separate scheme to SCI/NHBC Stage 1 System Certification. However, for light steel frame systems one of the requirements to achieving NHBC Accepts is having a Stage 1 certificate from the SCI.

SCI NHBC Stage 1 System Certification Logo

SCI NHBC Stage 1 System Certification
South China University of Technology

Between 23 July 20 to 28 July 2020, Bassam Burgan, SCI Director, was invited to make a presentation on Structural response to fires and explosions. This four-day course is an annual event sponsored by Total Petrochemicals for the students of the South China University of Technology. For the first time this course was delivered online and had approximately 500 students in attendance.

South China University of Technology
Members Advisory Desk Service email alerts

The new Advisory Desk service emails sent this month included:

  • Advisory Desk Note - AD 446 - P397 Elastic design of single span steel portal frame buildings to Eurocode 3
  • Advisory Desk Notes - AD 425 - Full depth stiffeners and lateral torsional buckling - First Published NSC - Jan 19
  • Advisory Desk Note - AD 426 - Bolt head protrusion through nuts and threads in grip lengths - First Published in NSC - Jan 19

If you are an SCI Sole Trader or Corporate Member and not receiving these emails 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

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; Net area checks in slip-resistant connections.

Question: In Category B slip-resistant connections, the resistance of the net area is given in BS EN 1991 1-1 clause 6.2.3(2)b as:
AD_QA_7148 - Equation 1

In Category C connections, the design plastic resistance must be verified, which is given in BS EN 1991 1-1 clause 6.2.3(4) as:
AD_QA_7148 - Equation 2

Why are the net section checks different?

Please see the answers to this Advisory Question/Answer - Ref No 7148-20 and all Advisory questions on the SCI Information Portal.

The Advisory Desk Service is for SCI Corporate and Sole Trader Members | +44 (0) 1344 636525

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SCI Courses, Webinars and Events

New SCI Training Online

Due to the current situation and the inability to run public courses SCI has taken the decision to move some of its public training on-line, our next online course is:

On-line Portal Frame Design course

Delivered in 4 sessions (90 mins per session)
2 Sept, 9 Sept, 16 Sept and 23 Sept
Each session will be run from 11:00 - 12:30

This course aims to provide in-depth coverage of the major issues surrounding the analysis, design and (crucially) the detailing of portal frames. The course covers frame design to BS EN 1993-1-1.

The course assumes that bespoke software will be used in many designs, but aims to present the background structural mechanics so the principles are understood, such that a manual design could be completed.

The course is aimed at structural designers who are involved with conceptual design, detailed design or checking of portal frames.

Exercises will be included during this course.

£250.00 SCI Members
£330.00 Non-Members

Register to attend this course.

Realising the Steel Design,  10 December 2019.

Next SCI Member webinar is:

Seismic design of steel structures to Eurocode 8
Tuesday 15 September - 12:30-13:30

This webinar will give the fundamentals of seismic design of steel structures according to Eurocode 8. A short introduction about seismic actions and design options will be given. Capacity design for steel structures according to Eurocode 8 section 6 will be discussed, highlighting the differences with the common Eurocode 3 design rules.

Register to view this webinar.

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Next Free Webinar for all to view:

Steel design at elevated temperatures
Wednesday 05 Aug - 11:00-12:00

Often, designers simply design for resistance at normal temperatures and expect the structure to be fire protected. But a little engineering can be used to calculate more realistic behaviour and to demonstrate the adequacy of the structure under fire conditions. Complex calculations can be avoided by the use of freely available design tools. This webinar will discuss the behaviour of steelwork at elevated temperature and the simple calculation models in the Eurocode.

Register to view this webinar.

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.

For a list of webinars, online public courses visit the SCI Information Portal

Free Member Webinar
SCI Publications

Our bookshop is once again open. For any hard copies of SCI Publications visit the SCI WebShop.

Joints in Steel Construction moment resisting joints to EC3 the Green book (P398))

Joints in Steel Construction moment resisting joints to EC3 the Green book (P398) This publication is one of a series of "Green Books" it covers the design of moment-resisting joints in accordance with Eurocode 3. Moment-resisting joints are typically found in portal frames and in continuous construction. This publication is the successor to Joints in steel construction - Moment connections (P207/95), which covers connections designed in accordance with BS 5950.

Joints in Steel Construction.  Simple joints to Eurocode 3 'The Green Book ' (P213)

Joints in Steel Construction : Composite Connections (P213) This publication is one of a series of "Green Book" that cover a range of steelwork connections. This publication provides a guide to composite, end plate, bolted connections suitable for use in semi-continuous braced frames. Both beam-to-beam details are considered. Guidance on frame design procedures is also given.

Joints in Steel Construction.  Simple joints to Eurocode 3 'The Green Book ' (P213)

Joints in Steel Construction. Simple joints to Eurocode 3 'The Green Book ' (P358) This publication is one of a series of "Green Books" that cover a range of steelwork connections. This publication provides guidance for nominally pinned joints (the most common joint type in steel building structures) that primarily carry vertical shear and, as an accidental limit state, tying forces. The connections are designed in accordance with Eurocode 3 and its UK National Annexes.

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SCI would like to welcome new members:

Passage Projects

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