Author: Bylander, S
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Bylander, S
The Structural Engineer, Volume 17, Issue 3, 1939
IN February, 1938, two 40 ft. span steel girder bridges in Low-dien, located a 108 miles north of Canton were wrecked during an air raid. The extent of the damage was so severe that in any other country these wrecked bridges would undoubtedly have gone as scrap iron. Tuh-Fuh Lee
Mr. L. SCOTT WHITE, M. Inst. C.E., M.I.Struct.E. (Member of Council), in moving a vote of thanks to the lecturer for his most interesting address, referred to the inadequacy of the measurement of sound reduction, and expressed his admiration of such specialists as the lecturer who had made it a special study for the benefit of the profession in general. He considered the cost of installing a complete system, which in Mr. Glover’s paper was figured as approximately 8 per cent., far too expensive for the normal office class of building. He questioned whether the average person really worried much about vibrations and noises penetrating through the structure when the background of voices and other sounds within the room rendered them almost inaudible. He considered that methods of reducing noises within a room or building were as important, if not more important, than preventing their penetrating through the structure.