既有高速公路加宽桥板梁运架施工技术

Construction Technology of Widening Bridge Slab Beam Carriage of Existing Expressway

大昌口枢纽互通L匝道桥加宽桥的板梁运输架设施工,创新地提出空心板的双层运输及专用架桥机架设7 m宽加宽桥的施工方法,详细论述了WJQ100t-30 m型架桥机拼装场地选择、梁板运输架设施工技术及质量保证措施等内容,为同类加宽桥梁板架设提供施工经验。

In this paper,the plate-beam transportation erection construction of widening bridge of l ramp bridge in Dachangkou junction is innovatively put forward,and the construction method of double-layer transportation of hollow plate and erection of widening bridge with 7 m width by special bridge erecting machine is discussed in detail,including the selection of assembling site,construction technology of beam-plate transportation erection and quality assurance measures,ETC.,which provides construction experience for similar widening bridge plate erection.