浅谈高速公路先张法预应力混凝土空心板施工工艺

Introduction to Highway Tensioning Prestressed Concrete Hollow Slab Construction Process

随着预应力混凝土技术在现代桥梁工程中的不断发展,先张法预应力混凝土空心板施工技术能防止混凝土裂缝,减小结构自重,增大桥梁跨径和跨度的优势被广泛应用。以在建京新高速公路项目的 13m小桥的预应力空心板为例,简要阐述先张法预应力混凝土空心板的施工工艺。

As prestressed concrete technology in the modern bridge engineering development,pretensioned concrete hollow slab construction depending on preventing concrete crack,reducing weight and the advantage of increasing bridge spans is widely used. Now with a new highway project in Jing-Xin 13 m bridge as an example,the prestressed concrete hollow slab are briefly expounded pretensioned construction technology of prestressed concrete hollow slab.