Author: Johnson, R P
First published: N/A
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Johnson, R P
Mr. P. S. A. Berridge (Assistant Engineer (Bridges), Western Region, British Railways) first said how much he appreciated being allowed to join in the discussion. It was a privilege for which he was most grateful.
Mr. Peter Mason (Member of Council) said it had been mentioned in the paper that it looked as though the Roman engineering organization for large engineering projects was very similar to that of today. There had been bills of quantities, etc. and work had been carried out by contractors. He wished to know how the engineering had been done. Had it been done by military engineers or had there been trained civilian engineers?
The problem of fatigue in welded crane girders is introduced and its importance as a design criterion discussed. It is attributed to the local stresses generated in the top flange and upper part of the web of the girder beneath the crane wheels. Some significant stress patterns under these conditions are enumerated and discussed.