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The paper reviews classic examples of historic bridge refurbishment and then considers some of the difficulties that are arising in the refurbishment of the postwar concrete and steel bridge stock. From this the needs for research and development on the assessment of deterioration and on the strength and durability of remedial works are identified. Some suggestions for bridge designers are made.
Jonathan G.M. Wood
The life of concrete structures in service depends not only on the production and placing of durable concrete, but also on proper design, detailing and construction methods, and on appropriate levels of maintenance. Past and present procedures for achieving this are reviewed, shortcomings identlped, and suggestions made for improvement in the future.
The paper makes some observations and suggestions about developing an approach to conservation that includes the consideration of a building’s anatomy and structure. It describes the reconstruction of the Great Hall roof of Bedford School as an example of this approach.
D. Sugden and C. Wymer