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预应力混凝土结构由于其具有从分利用材料的高强性能,有效防止混凝土裂缝增大桥梁跨度,在公路桥梁上得到普遍应用,本文结合郑州黄河公铁两用桥南岸公路分建段现浇箱梁后张法施工实例,总结介绍了后张法预应力施工技术的施工准备、施工工艺、施工控制、质量检验等控制环节。
Prestressed concrete structures are widely used in highway bridges due to their high strength performance from the points of use of materials to effectively prevent the cracks in the concrete from increasing the span of the bridge. Combined with the cast-in-situ box girder of the south bank of Zhengzhou Yellow River Rail- Post-tensioning method of construction examples, summarizes the post-tensioned prestressed construction technology, construction preparation, construction technology, construction control, quality control and other aspects of control.