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室内现浇楼梯休息平台的结构类型有两种:一种是平台板镶嵌在周围砖墙内,形成四边支承板,如图1所示;另一种是平台板与周围砖墙分离,设计成挑板式平台,如图2所示。第一种由于平台板镶嵌在砖墙内,施工中必须在砖墙砌至平台板底位置时,安装模板,绑扎钢筋,浇筑下半跑梯段及平台混凝土后才能继续砌筑平台板上部的墙体,尔后再安装上半跑及楼层模板,绑扎钢筋,然后再进行混凝土浇筑。从这种作法可以看出,采用第一种结构形式的平台板,在浇筑平台混凝土后,就得留一道施工缝在位置A处,在楼面处又留一道施工缝,即在位置B处,这样每层楼梯需要进行两次砌砖、安装模板、绑扎钢筋和浇筑混凝土。而采用第二种挑板式的平台板,在砌
Indoor cast-in-place stair rest platform structure types are two: one is the platform plate embedded in the surrounding brick wall, forming a four-sided support plate, as shown in Figure 1; the other is the platform plate and the surrounding brick wall designed to Pick plate platform, shown in Figure 2. The first kind of platform plate inlaid in the brick wall, the construction must be brick wall to the platform plate bottom position, the installation of templates, banding steel, pouring the second half of the runway and platform concrete to continue masonry platform board Wall, and then install the first half on the floor and floor templates, lashing steel, and then concrete pouring. From this practice, it can be seen that the platform plate adopting the first structural form has to leave a construction joint at the position A after pouring the concrete of the platform, and another construction joint is left on the floor, that is, at the position B , So that each floor need to be bricklaying twice, installing the template, banding steel and pouring concrete. The use of the second pick plate-type platform board, puzzle