支架现浇箱梁施工技术 ： In special geographical environment ， when there are special requirements for the linear ， force ， span， and so on， precast beam can't meet these requirements. It is necessary to use support cast-in-place box girder. Cast-in-place box girder has strong torsional ability ， large span ， strong lateral bending stiffness and good stability. Combined with engineering example ， th