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Dr P. A. Jackson (F) (Gifford & Partners)
Having been responsible for the assessment, testing and analysis of a number of similar
bridges, I was very interested in this paper. I have a few comments and would like to hear the authors’ views.
There have been many situations in which flexural members - especially bridge girders -have been found to have less than the desired strength. A widely used method of providing additional strength has been the introduction of prestressing by means of external tendons'. External tendons are prestressing strands situated outside the original concrete section and are connected to the structure by anchorages and deviators.
What has been done with the building now that Expo has finished? I understood, at the beginning, thathe buildings were to be folded up and taken away and used elsewhere. What is the current situation?