大孔径现浇混凝土空心板梁研究与应用

The Research and Application of Cast-in-place Concrete Hollow Slab with Big Holes

对等截面连续箱梁和变截面连续实心板梁、高强复合薄壁管空心板梁三种结构形式的设计施工、受力性能及造价进行了研究、分析和讨论 ,指出大孔径现浇空心板梁是一种新颖实用的桥梁上部结构形式 ,有着广阔的应用前景 .

In this paper,the structural design,mechanical behavior and the cost of three types of structure,ie.continuous box girder with constant section?continuous solid slab with varied section,hollow slab with high strength and combined low-thickness tube have been analysed and discussed.It also suggests that cast-in-place hollow slab with big hole be employed economically as upper structural type of bridge and this will gain wide use in the future.