高原冻土区8m先张法预应力混凝土T梁预制施工技术

Prefabrication of 8 m pre-tensioned prestressed concrete T beam at permafrost zone over plateau

高原冻土区8m先张法预应力混凝土T梁预制施工技术是国内首次在特大桥上成功实践的一项新技术,结合青藏铁路清水河特大桥施工实例,介绍了该T梁预制施工的模具设计、混凝土浇筑及预应力张拉等一整套施工技术。

Prefabrication of 8m pre-tensioned prestressed concrete T beam is a new technology successfully applied for the first time to extra-large bridge at permafrost zone over plateau. An introduction is given to mould design, concrete pouring, and prestress stretching.