Bridge Research Group: People
Current Group Members
Prof.
Campbell Middleton
Campbell Middleton
is the Laing O'Rourke Professor of Construction Engineering at the Department of Engineering and a Fellow
of King's College. Cam spent 10 years working as a civil engineer
before arriving at Cambridge, where he spent three years researching
a new generalized yield-line analysis technique. Since becoming a lecturer
at the Department, Cam has continued to investigate new structural analysis
and risk assessment techniques for the management of bridges. This
has included a large number of model tests in the Structures Laboratory
in order to validate the theoretical models. Cam is also the Chairman
of the Bridge Owners' Forum.
Prof. Campbell Middleton
Paul
Fidler (Computer Associate)
Paul Fidler
is a Computer Associate in the Department of Engineering. He has worked
on the commercialisation of Dr Middleton's yield-line analysis computer
program, which has now been used by over 40 bridge owning authorities
in the UK and overseas. Paul has also been been involved with the
structural health monitoring of the northern anchorage chamber of the
Humber Bridge and other civil infrastructure assets.
Paul Fidler
Graham
Webb (PhD Student)
Graham Webb is a PhD Student in the Department
of Engineering. Graham is researching the use of sensors for structural health
monitoring, with particular focus on the analysis and interpretation of the
data obtained from wireless sensor networks.
Graham Webb
Past Research Associates
Prof. Tim Ibell
Tim Ibell developed a plasticity-based analysis technique to predict the punching
shear behaviour of reinforced -concrete beam-and-slab bridges. Tim is now Professor
of Structural Engineering at the University of Bath.
Prof.
Tim Ibell
Dr Avril Blackmore
Avril Blackmore looked at issues of Whole-Life Costing and
Reliability of Bridges.
Dr Victoria Hogg
Victoria Hogg reviewed deterioration models used to predict corrosion in reinforced-concrete structures.
Victoria now works for Risk Solutions.
Dr Victoria Hogg
Dr Neil Hoult
Neil Hoult looked at using wireless sensors and fibre-optic telecommunications cables for structural
health monitoring. As part of a multidisciplinary team involving researchers from the Department of
Engineering and Computer Laboratory in Cambridge, and also from Imperial College London, Neil investigated
the pros and cons of wired and wireless sensors for use on civil infrastructure. Neil is now an Associate
Professor at Queen's University in Kingston, Ontario - Canada.
Dr Neil Hoult
Past PhD Students
Dr Andrew
Jackson
Andrew
developed a new combined upper and lower-bound plastic analysis technique
for steel-reinforced concrete slabs. The approach has the advantage that the
upper-bound analysis can be checked by hand if necessary, while the new lower-bound
analysis allows confidence in the results predicted by the upper bound technique.
Dr Andrew Jackson
Dr Graeme Walker
Graeme Walker investigate the strength assessment of reinforced-concrete voided-slab
bridges, particularly with a view as to whether yield-line analysis is a
valid analysis technique for such bridges. Graeme now works for Gifford.
Dr Francesca Lea
Francesca Lea looked at identifying areas uncertainty in bridge inspections, including
visual inspections and non-destructive techniques such as half-cell potentials,
chloride content, carbonation depth and cover depth.
Dr Daniel Imhof
Daniel Imhof was a post-graduate student in the Group. As Part of his PhD
research Daniel developed a comprehensive new methodology to evaluate the risk of
structural collapse of existing concrete bridges, where risk is defined as
the product of both the consequences and the probability of failure. Daniel is
currently working as a Risk Manager for F. Hoffmann-La Roche Ltd.
Dr Daniel Imhof
Dr Hai-Yun Lu
For his PhD Hai-Yun looked at the applicability of yield-line analysis
and discontinuity line analysis to predict the behaviour of reinforced
concrete cantilevers under concentrated loads. He conducted an experimental
program on several model specimens to test the validity of various
analysis techniques. Hai-Yun is currently a Senior Engineer at Scott Wilson.
Past MPhil students
Steve Lowe
Steve looked at the collapse behaviour of reinforced concrete beam-and-slab
bridges, using model tests to look at the suitability of US design
codes.
Maurice Mansfield
For his MPhil, Maurice looked at the implementation of advanced assessment methods for concrete
Bridges. Maurice now works for RPS.
Yasoja Gunawardena
Yasoja looked at Bridge Design codes in use in Sri-Lanka and whether they were
appropriate for the vehicles and traffic load actually present on Sri-Lankan
Roads.