浮运转体法架设钢桁梁施工技术

在青阜铁路增建二线茨淮新河特大桥钢桁梁架设施工中,根据现场施工条件,合理利用六七式铁路舟桥器材、六四式铁路军用梁等战备器材,拼组成浮运船,使钢桁梁在岸边预拼装,然后利用浮体转体法、浮运法将钢桁梁整体架设到位,大大降低了施工难度,减少了占用航道时间,创造了良好的经济效益,可供同类施工参考.

Swiveling Construction Technology for the Erection of Steel Truss Girders

During the erection construction of the steel truss girders of the Cihuaixinhe Mega Bridge of the second line of the Qing-Fu Railway,type-67 railway pontoon bridge equipment,type-64 railway military girders and other combat readiness equipments are reasonably utilized,in the light of the specific site conditions,to make up float-shipping boats.In the meantime,the pre-assembly of the steel truss girders is performed on the shore.Then,the assembled steel truss girders are erected in place as a whole by means of the floating-swiveling method,which greatly reduces the difficulty in construction and the time of occupying the waterway,thus resulting in very good economic benefits.The project may serve as a useful reference for the construction of other similar projects.