不对称塔梁固结斜拉桥钢混结合梁安装施工技术

CONSTRUCTION TECHNOLOGY OF TOWER AND GIRDER RIGID FIXITY CABLESTAYED BRIDGE STEEL-CONCRETE COMPOSITE GIRDER INSTALLATION

温州鳌江四桥为塔梁固结斜拉桥,主桥采用钢主梁结合桥面板的整体截面形式,施工中根据不同工况,选择支架法原位吊袋及桥面起重机悬臂吊装方案保证了施工顺利有序进行。

With the development of national economy and technology, cable-stayed bridge has been more and more applied in bridge field. At the same time, the rapid development of computer technology makes the structure of cable-stayed bridge with novel structure, complex system and difficult construction appear in public view. The Fourth Bridges of the Aojiang are tower and girder rigid fixed cable-stayed bridge, and the main girder is steel-concrete composite girder, and the two sides of the main tower are asymmetric.This paper mainly introduces the installation and construction of steel-concrete composite girder from the aspects of construction method and construction measures.