The main bridge across the Xijiang River adopts(2 × 57.5+172.5+600+4 × 57.5)m double-tower steel box mixed beam cable-stayed bridge structure.The main beam of the cable-stayed bridge is composed of steel box girder and concrete box girder,and adopts the form of asymmetric mixed beam cable-stayed bridge.The steel box beams in the middle span and closing section of the main bridge are constructed by cantilever assembly,and the other steel box beams and cast-in-place beams are constructed by support cast-in-place.The key control techniques,such as finite element simulation calculation,geometry monitoring,stress monitoring,cable force monitoring and adjustment,are used to ensure the good shape of the bridge.
关键词
非对称/混合梁/斜拉桥/线形控制
Key words
asymmetry/hybrid beam/cable-stayed bridge/linear control
维普
万方数据