The Use of Prestressed Steel in Elevated Roadways. Discussion on the paper by E. V. Finn MlStructE A
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The Use of Prestressed Steel in Elevated Roadways. Discussion on the paper by E. V. Finn MlStructE A

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The Structural Engineer
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The Structural Engineer, Volume 42, Issue 8, 1964

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The Structural Engineer, Volume 42, Issue 8, 1964

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Introducing the paper, Mr. Needham said that a testing rig had been evolved capable of taking beams up to 25 ft span and 2 ft 6 in. deep with two 20-ton loads, hydraulically applied at the quarter-points. It had been intended for testing a wide range of prestressed girder designs. The loads needed to impart a load factor of two, on a quarter-scale model of the girder tested at MEXE, amounted to approximately 7 tons per jack; thus the capacity of the rig would enable much stronger models to be tested.

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Opinion Issue 8

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