连续箱梁支架预压技术

Precompression Technology for Continuous Box Girder

文章以郑西客运专线渭河特大桥工程为例,介绍了大型箱梁支架预压的工艺流程、预压荷载、加载范围及加载操作过程,提出了在加载过程操作中应注意的问题,为连续箱梁支架预压施工提供参考。

With the Weihe River extra-large bridge on Zhengxi Passenger Railway as an example,the Article introduced the contruction procedure,precompression load,loading scope and loading operation for the compression of large box girder.It also points out some precautions for loading operation,which will provide reference for precompression of continuous box girder.