The central suspension beam is always in axis with the front pier. 中间吊架总是在前墩柱中心线处。
The main suspension gallows consist of a steel box beam, sitting on hydraulic jacks that support all the structure during concreting. 主吊架有一钢箱梁组成,坐落在液压千斤顶上,在浇注混凝土过程中支撑所有结构。