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上跨既有高速公路桥梁施工越来越普遍,其中,钢管立柱与工字钢梁组合门洞支架法运用于现浇桥梁上跨既有道路已是相当成熟的技术,其施工工艺简单、受力明确、操作方便,在建平阳高速太原枢纽互通中BK0+563.5跨线桥上跨原太高速公路即采用该法进行现浇梁施工。文章以该次上跨为例,详细介绍了门洞支架在保证通车的条件下搭设、拆除的施工工艺。

On Cross Already has the Highway Cast-in-place Continual Box Liang Entry Support Construction Technique

On cross already has the highway bridge construction to be getting more and more common,the steel pipe column and the I-beam combination entry support law utilizes in the cast-in-place bridge cross already has the path already is the quite mature technology,its constructioncraft is simple,the stress is clear about,the ease of operation,in constructs in the Pingyang high speed Taiyuan key position intercommunication onthe BK0+563.5 viaduct the cross too highway namely to use this law to carry on cast-in-plac...