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system for launching to span bridges in species formed from prefabricated segments continuous beam and close work with prestressing cables
system for launching to span bridges in species formed from prefabricated segments continuous beam and close work with prestressing cables
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机译:用于发射跨度的系统,该跨度桥梁由预制节段,连续梁和预应力缆索的封闭工程组成
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摘要
The launching apparatus, including a stayed metallic beam, is provided with two poles, one of which rests on the plank in correspondence of the last pier of the already formed bridge and the other rests on a cantilever end of said bridge length, bracket-like projecting beyond said pier; between the two poles connection stays are provided parallel to each other, either horizontal or inclined, whereas inclined stays are anchored at each of the two poles and at the corresponding length of the metallic beam which is external to the pair of poles.
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