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40m钢筋混凝土预应力箱梁是为满足中等跨径长桥主要结构构件。本文作者通过对铜(川)黄(陵)高速公路K100+925黄家沟大桥箱梁预制的现场施工管理,认为预制箱梁预拱度控制和预应力施加是现场的重点工作内容。
40m reinforced concrete prestressed box girder is to meet the medium-span long bridge main structural components. Through the on-site construction management of prefabricated box girder of K100 + 925 Huangjiagou Bridge on the Huang-Ling (Huang) Expressway in Sichuan Province, the author believes that the pre-camber control and prestressing of prefabricated box girders are the key contents of the worksite.