Deflections in Concrete



This half day course covers the calculation of deflection in slabs and beams according to Eurocode 2.


Learning outcomes

By the end of this course, you should be able to:


  • Carry out calculations of deflection
  • Assess the influence on deflection of creep, shrinkage, loss of tension stiffening and construction loading
  • Choose suitable concrete material properties for deflection calculation
  • Understand why the calculation of deflection at the design stage is not an exact science
  • Explain the importance of good communication to avoid deflection related disputes on site




Robert Vollum joined Imperial College London as a lecturer in the early 1990s, following a decade of working in the industry. He has been a reader in concrete structures since 2011. His research interests encompass long-term deflections of reinforced concrete slabs, beam-column joints, shear in beams, punching shear, numerical modelling of reinforced concrete structures, strut and tie modelling, and control of early age thermal cracking.


Intended for


Graduate engineers. The material is relevant to the Chartered Membership Exam, but is not essential.


Entry criteria

Prior experience of designing concrete structures will be assumed.


Associated Publication

Manual for the design of concrete building structures to Eurocode 2

Many of our courses have an associated, Institution-published manual or guide. Enjoy an exclusive 50% discount on a printed copy of the publication when you attend this course.

Email your request to before the course, attaching your Eventbrite ticket as proof of participation.

Don't delay booking your place - if we have not received enough bookings to break even one month before the date of the course, we will have to cancel it.

Event Information

Eventbrite - Deflections in Concrete

Event Status
Places Available

Event Date

14:00 - 18:00

£145 + VAT for Members
(Early bird £130 + VAT)

£190 + VAT for Non-Members
(Early bird £171 + VAT)

The Institution of Structural Engineers, International HQ, 47-58 Bastwick Street, London, EC1V 3PS, United Kingdom

Robert Vollum

Event Contact Email

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