Bridges and MenGrosset & Dunlap, 1966 - 343 páginas |
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Página 77
... force of 872 men and 167 horses was engaged in transporting material and building the bridge . All the centerings were removed on September 22 , 1772 , in the presence of the king . The king was of course Louis XV , with whom Perronet ...
... force of 872 men and 167 horses was engaged in transporting material and building the bridge . All the centerings were removed on September 22 , 1772 , in the presence of the king . The king was of course Louis XV , with whom Perronet ...
Página 143
... force of forty pounds per square foot would have been necessary to overturn the bridge , and as this would have meant a wind of over a hundred miles per hour , even above Gale Force 11 , the investigators con- cluded that something more ...
... force of forty pounds per square foot would have been necessary to overturn the bridge , and as this would have meant a wind of over a hundred miles per hour , even above Gale Force 11 , the investigators con- cluded that something more ...
Página 247
... force , and under certain circumstances its action can have very complex results . The wind tunnel , still a novel ... forces . " They noted significantly : " At the higher wind velocities torsional [ twisting ] oscillations , when once ...
... force , and under certain circumstances its action can have very complex results . The wind tunnel , still a novel ... forces . " They noted significantly : " At the higher wind velocities torsional [ twisting ] oscillations , when once ...
Índice
How Bridges Were Invented | 1 |
The Mighty Roman Arch | 7 |
The Engineer Vanishes from Europe but Appears in Asia | 19 |
Direitos de autor | |
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American appearance arch army became British Brooklyn building built cables caisson called cantilever carried century Civil completed connected construction cost covered cross deep Eads East engineer fall famous feet Figure finally fire five followed force foundations four French gave George girder hand head heavy Henry houses hundred important iron Island Italy James John known later length less loading London Louis March Michigan middle miles named nearly never once Paris passed piers piles Pont problem rail railroad Rennie river road roadway Robert Roebling Roman running shore side soon span stand steel Steinman Stephenson stone story stream structure suspension bridge Telford Thomas timber tion took tower town train truss tunnel turned United Washington whole wind wire York