本文介绍信江大桥利用工地现有万能杆件,在铁驳船上组拼浮动门架,无支架安装拱肋的施工工艺。扼要地介绍了预制场地布置、拱肋预制、浮动门架组拼、拱肋组拼、吊运入孔、吊装就位和封拱等工序的施工情况。这种吊装方法,适用于通航河流,施工进度快,安全可靠。 This article introduces the construction of Xin Jiang River Bridge using the existing universal rod, assembling barges on the barge floating gantry, no arch rib construction technology. Briefly introduced the construction of prefabricated site layout, arch rib prefabrication, floating gantry assembly, arch ribs assembly, lifting into the hole, hoisting and arch sealing process. This lifting method, suitable for navigation rivers, construction progress fast, safe and reliable.