Donald Pearson-Kirk

Technical Director – Structures Investigation Group WSP

Dr Donald Pearson-Kirk is Technical Director with the WSP Structures Investigation Group. Donald has worked as a technical advisor to numerous international agencies and governments and is the author/co-author of over 260 technical papers. He has directed the planning for, and investigations of, over 380 post-tensioned bridges in the UK, Europe, the Middle East and the USA. Those bridges have included the Charles River Bridge in Boston, Massachusetts and the A4 Hammersmith Flyover in London. The SIG team has applied the “BD 54/15 Management of post-tensioned concrete bridges” processes to over 380 post-tensioned bridges in the UK since the Standard was issued. He was the lead author of CS 465 which superseded BD 54/15 in April 2020

My Speaker Sessions

Wednesday, December 01

6. Post-tensioned structures - Scottish experience
Donald Pearson-Kirk

An outline of the performance of post-tensioned structures, the necessary reviews, findings and the essential lessons learnt will be presented.

WSP’s Structures Investigation Group (SIG) was involved in the development of the draft standard “BD 54/XX Management of post-tensioned concrete bridges” from 2012 and trialled the application of the BD’s processes, from desk studies to site investigations, on post-tensioned bridges during 2013 and 2014.

BD 54/15 was published in April 2015 and was a major improvement on the 1993 documents. The WSP SIG team completed BD 54/15 risk review and risk assessment reports for over 340 post-tensioned bridges between 2015 and 2021 and authored  the re-drafted Standard, CS 465, as part of the update of the DMRB. CS 465 was a further improvement in the advice provided for the management of post-tensioned concrete bridges.

The development of the BD and CS documents will be outlined and the benefits of their application to certain bridges in Scotland will be presented.


Wednesday , December 01, 14:00 - 14:25
Justine Botha Luke Fisher

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