准格尔黄河特大桥主塔与下横梁异步施工技术

Asynchronous Construction Technology of Main Tower and Lower Crossbeam of Zhungeer Yellow River Bridge

虽然异步施工技术在A形或H形主塔施工中有过应用,但在实际施工中采取的措施有很大差异。准格尔黄河特大桥为主跨440m的双塔双索面斜拉桥,8#主塔采用A形混凝土塔,并设置4道横梁,下横梁与塔柱采用异步施工技术。论文结合该工程实例,针对斜拉桥A形主塔下横梁与塔柱异步施工技术进行分析。

Although asynchronous construction technology has been used in the construction of A-shaped or H-shaped main tower, the measures taken in the actual construction are quite different. Zhungeer Yellow River Super Large Bridge is a cable-stayed bridge with two towers and two cable planes with main span of 440 m. 8# main tower adopts A-shaped concrete tower, and 4 beams are set. Asynchronous construction technology is adopted for lower beam and tower column. Combined with the project example, the asynchronous construction technology of the lower crossbeam and column of the A-shaped main tower of the cable-stayed bridge is analyzed.