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1 temporary decking
Морской термин: съёмные платформы -
2 temporary decking
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3 decking
1. пролётное строение; настил2. верхнее строение3. временное дорожное покрытие4. платформа -
4 Roebling, Washington Augustus
SUBJECT AREA: Civil engineering[br]b. 26 May 1837 Saxonburg, Pennsylvania, USAd. 21 July 1926 Trenton, New Jersey, USA.[br]American civil engineer.[br]The son of John Augustus Roebling, he graduated in 1857 from the Rensselaer Polytechnic Institute as a civil engineer, and joined his father in his suspension bridge construction work. He served in the Civil War as a colonel of engineers in the Union Army, and in 1867, two years after the end of the war, he went to Europe to study new methods of sinking underwater foundations by means of compressed air. These new methods were employed in the construction of the Brooklyn Bridge, of which he took charge on his father's death in 1869. Timber pneumatic caissons were used, with a maximum pressure of 34 psi (2.4 kg/cm2) above atmospheric pressure. Two years after work on the piers had started in the caissons, Roebling, who had been working constantly with the men on the foundations of the piers, was carried unconscious out of the caisson, a victim of decompression sickness, then known as “caisson disease”. He was paralysed and lost the use of his voice. From then on he directed the rest of the work from the sickroom of his nearby house, his wife, Emily Warren Roebling, helping with his instructions and notes and carrying them out to the workforce; she even read a statement from him to the American Society of Civil Engineers. The erection of the cables, which were of steel, began in August 1876 and took twenty-six months to complete. In 1881 eleven trustees and Emily Warren Roebling walked across temporary planking, but the decking of the total span was not completed until 1885, fourteen years after construction of the bridge had started. The Brooklyn Bridge was Roebling's last major work, although following the death of his nephew in 1921 he was forced to head again the management of Roebling \& Company, though aged 84 and an invalid.[br]Further ReadingD.B.Steinman and S.R.Watson, 1941, Bridges and their Builders, New York: Dover Books.D.McCullough, 1982, The Great Bridge: The Epic Story of the Building of the BrooklynBridge, New York: Simon \& Schuster.IMcNBiographical history of technology > Roebling, Washington Augustus
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