Europe's tallest Christmas trees

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Concrete Engineering International | 2005年 / 9卷 / 04期
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Scaffolds - Stability - Stiffness - Structural design - Tower cranes;
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摘要：
One of the two tallest Christmas trees in Europe was successfully constructed with an overall height of 72m, as high as a 20-storey high-rise building. Scaffolding materials were used to put up the approximately two million lights. This scaffold construction was designed by Portuguese and Polish PERI engineers in a demonstration of European teamwork. The ledger connections of high node rigidity provided the required stability and torsional stiffness.
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