近些年来,北京市的高层住宅建筑发展很快,大多采用内浇外挂和内外全部大模板现浇的结构型式。这类结构型式主要有高速施工的特点。然而,在冬施方面也带来一些具体问题,主要是混凝土墙板表面系数较大,冬施难于养护;施工工序咬得很紧,混凝土 In recent years, the high-rise residential buildings in Beijing have developed rapidly. Most of them use in-situ plug-in structures and all types of internal and external formwork cast-in-place. This type of structure mainly features high-speed construction. However, there are also some specific problems in winter planting, mainly due to the fact that the surface coefficient of concrete wallboard is relatively large and it is difficult to apply winter curing; the construction process is bitten tightly and concrete