混凝土箱梁暖棚法冬期施工

现浇钢筋混凝土普通箱梁冬期施工时,首要任务是保证混凝土尽快达到临界强度,避免遭受冻害。着重在混凝土搅拌、运输、浇筑、养护等环节做好加热或保温措施。天津市复康路互通式立交桥局部工程进行了冬期施工,施工方法采用暖棚法,为桥梁上部结构冬期施工进行了卓有成效的探索。

Construction of Concrete Box Girder by Warm Shed Process in Winter

The primary task is to guarantee the concrete as quickly to get up to the critical strength as possible and to avoid it from freezing damage when the cast-in-situ steel reinforced concrete box girder is constructed in winter. The heating or thermal insulation measures are focused to take in the links of concrete mixing, transportation, grouting and curing. The warm shed process is used in the construction of the partial works of Tianjin Fukang Road Interchange in winter, which provides the fruitful exploring for the construction of bridge superstructure in winter.