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奥地利建筑和公路运营负责部门在进行A1西部高速公路全面大修时,根据实际调查情况,将一座跨线桥爆破拆除,在原址上重建一座新跨线桥。新桥全长约70 m,上部结构采用钢构架与钢筋混凝土桥面板的组合体系,钢构架是由弧形钢管和斜撑钢管构成,桥台基础采用小型桩。为减少日后的维护工作量,全桥未设置支座和伸缩缝。为方便施工,钢构件分为6段,采用临时框架吊装。新桥的设计造型新颖别致,有很强的视觉冲击力,并且具有良好的经济性。
At the time of the overhaul of the A1 western expressway, the responsible department of the Austrian construction and highway operation demolished a flyover according to the actual investigation and rebuilt a new flyover at the site. The total length of Xinqiao is about 70m. The superstructure adopts a combination of steel frame and reinforced concrete bridge deck. The steel frame is composed of curved steel pipe and diagonal steel pipe. The abutment foundation is made of small piles. To reduce future maintenance workload, the bridge is not set up bearings and expansion joints. For the convenience of construction, the steel component is divided into 6 sections, which are suspended by a temporary frame. Newbridge’s design modeling novel and unique, has a strong visual impact, and has good economy.