Proceedings of the Engineers' Club of Philadelphia, Band 8The Club, 1891 |
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Seite 17
... bridge , be it of wood or iron , is very carefully designed , the stone arch is simply built so that it has positively abundant strength , existing structures generally being taken as guides , and but little attempt being made to look ...
... bridge , be it of wood or iron , is very carefully designed , the stone arch is simply built so that it has positively abundant strength , existing structures generally being taken as guides , and but little attempt being made to look ...
Seite 18
... bridge . The draw was a through span , and the approaches were deck spans , all riveted construction . The draw span rested upon a group of fifteen cast - iron piles , arranged in a circle as shown in the plan , Fig . 1 , and driven in ...
... bridge . The draw was a through span , and the approaches were deck spans , all riveted construction . The draw span rested upon a group of fifteen cast - iron piles , arranged in a circle as shown in the plan , Fig . 1 , and driven in ...
Seite 19
... bridge , showed that the contraction of the cross - section by the extension of bulkheads into the stream , by clumps of fender piles above and below each iron pier , and by the pivot - pier itself , had caused a scouring of the bed ...
... bridge , showed that the contraction of the cross - section by the extension of bulkheads into the stream , by clumps of fender piles above and below each iron pier , and by the pivot - pier itself , had caused a scouring of the bed ...
Seite 21
... bridge , to give notice of any approaching traffic , and the draw was swung around over each pile , or closed on signal . By 7.35 the next morning the fourteen piles were all driven , and the con- tractor was paid by the day - or rather ...
... bridge , to give notice of any approaching traffic , and the draw was swung around over each pile , or closed on signal . By 7.35 the next morning the fourteen piles were all driven , and the con- tractor was paid by the day - or rather ...
Seite 35
... bridge leading over the railroad embankment , had been set up in this depression and started just before orders had been received to stop the work , and a small quantity of material had been moved . It was fortunate that the amount was ...
... bridge leading over the railroad embankment , had been set up in this depression and started just before orders had been received to stop the work , and a small quantity of material had been moved . It was fortunate that the amount was ...
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