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针对公路桥梁工程中广泛采用的圆孔、大孔空心板存在的缺点 ,结合采用低松弛 2 70级高强钢绞线和C80高强混凝土材料 ,提出了一种新型的双拱门式空心板断面 ,以 16m跨空心板为例 ,采用有限元方法对其进行了横向受力性能比较分析 ,确定了双拱门式空心板的断面尺寸 ,为经济可靠的应用预应力高强混凝土桥面空心板提供了理论研究基础 .
In view of the shortcomings of round holes and macroporous hollow slabs which are widely used in highway bridge engineering, a new type of double-arch hollow slab section is proposed based on low slack 270 high strength steel strand and C80 high-strength concrete. 16m span hollow slab is taken as an example, the transverse force performance analysis is carried out by the finite element method, the section dimension of the double-arch hollow slab is determined, which provides a theoretical study for the economical and reliable application of prestressed high strength concrete deck slab. Basis.