The New Encyclopaedia Britannica: Macropaedia (19 v.)Encyclopaedia Britannica, 1983 - Encyclopedias and dictionaries |
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Page 180
... feet ( 4 me- tres ) in diameter , and all of the steelwork was fabricated in shops built for the purpose at South Queensferry . The spans were built out as balanced cantilevers from each main pier , the tubular members being erected ...
... feet ( 4 me- tres ) in diameter , and all of the steelwork was fabricated in shops built for the purpose at South Queensferry . The spans were built out as balanced cantilevers from each main pier , the tubular members being erected ...
Page 182
... feet and , for arch bridges , 3,000 feet . On account of the much higher strength - to - weight ratio of steel - wire cables as compared with structural steel , suspension bridges can be built with much longer spans . In a period of 80 ...
... feet and , for arch bridges , 3,000 feet . On account of the much higher strength - to - weight ratio of steel - wire cables as compared with structural steel , suspension bridges can be built with much longer spans . In a period of 80 ...
Page 184
... feet ( 207 metres ) high , built up of square vertical cells . There are four main cables , each 36 inches ( 0.9 metres ) in diameter and made up of a total of 142,500 ... feet by 230 feet ( 40 × 70. 184 Bridges , Construction and History of.
... feet ( 207 metres ) high , built up of square vertical cells . There are four main cables , each 36 inches ( 0.9 metres ) in diameter and made up of a total of 142,500 ... feet by 230 feet ( 40 × 70. 184 Bridges , Construction and History of.
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