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This paper is concerned with a simplified analysis of the bursting forces occurring in the transition zones close to a single prestressing anchorage in the centre of a square concrete prism. M. Gaynor
Mr. A. Pillai (Associate-Member) said that he was involved on a small job where a culvert had been floated out and they had had trouble synchronizing the winches, the hawsers breaking when they got into position. How had the author managed to synchronize all the winches?
Fluctuating-tension tests have been undertaken to assess the fatigue strength of a new form of splice for joining 0.2-in-diameter high tensile steel wire. The mean stress level for most of the tests was that appropriate to the suspension bridge main cable higher mean stresses more relevant to prestressed concrete condiapplication, 40 tons/in2. In a more limited number of tests, however, higher mean stresses more relevant to prestressed concrete conditions were used. The results obtained indicate a probable safe stress fluctuation for a limited life. M.S.G. Cullimore