Author: Korbacher, G K;Seethaler, N
First published: N/A
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Korbacher, G K;Seethaler, N
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.
The paper describes computer programmes for calculating influence line or influence surface ordinates for plane frames for the in-plane or transverse loading.