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由于新型材料的快速发展和施工工艺技术水平的提高,使得钢-混叠合梁斜拉桥得到了快速发展,因它能在充分发挥材料的力学性能的同时最大限度的增强桥梁的跨越能力,由此而满足了现代交通发展的需要。此种桥型一般先拼装预制的钢主梁构件,然后施工混凝土的桥面板构件。本文以道安高速公路乌江特大桥为例,对叠合梁斜拉桥的施工控制关键技术进行探讨、研究。
Due to the rapid development of new materials and the improvement of construction technology, the rapid development of steel-concrete composite girder cable-stayed bridges can maximize the bridge span capability while giving full play to the mechanical properties of the material, This meets the needs of the development of modern transportation. This type of bridge generally prefabricated prefabricated steel girder components, and then construction of concrete deck components. This paper takes the Wujiang River Bridge of Daan Expressway as an example to discuss and study the key technologies of construction control of the cable-stayed bridge with composite girders.