桥面吊机与安全平台配合的施工技术

机面吊机与安全平台配合的施工技术主要是针对钢斜拉桥而言的。它是悬臂拼装施工技术的一种，因为斜拉桥钢主梁，不管是开口断面箱梁，还是封闭式断面箱梁，都是在工厂里精加工的，其接头连接型式多为高强螺栓或焊接，桥面吊机可以满足吊装部位钢梁拼接需要，而结构斜拉索的多次张拉，又能保证施工线型满足设计成型的要求。传统的挂篮只剩下施工平台满足施工操作要求，常设计成轻盈的安全平台，多固定在已安装好的梁底轨道上，这样就实现了桥面吊机与安全平台相配合的施工方案。如叠合梁式的南浦大桥、杨浦大桥，混合式桥的徐浦大桥等桥均为如此。

Construction technology of bridge deck crane and safety platform

The construction technology of surface crane and safety platform is mainly for steel cable-stayed bridge. It is a kind of cantilever assembly construction technology, because the steel main girder of the cable-stayed bridge, whether it is an open section box girder or a closed section box girder, is finished in the factory, and the joint connection type is mostly high-strength bolts or welding, the bridge floor crane can meet the needs of the steel beam spliced in the lifting part, and the multiple tensioning of the structure''s cable-stayed cable can ensure that the construction line meets the requirements of the design and formation. In the traditional hanging basket, only the construction platform is left to meet the requirements of construction operation, and it is often designed as a light safety platform, which is mostly fixed on the installed beam bottom track, so that the construction scheme of the bridge floor crane and the safety platform are realized. Such as the superimposed beam type Nanpu Bridge, Yangpu Bridge, hybrid bridge Xupu Bridge and other Bridges are so.