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楼地面一次抹面是一种将楼板结构层与楼面装修层,在浇筑混凝土时一次抹压成型的施工方法。它从根本上解决了地面空鼓、起砂等质量通病,是减薄楼板厚度、减轻建筑物自重的可靠方法。它还为改变现场面貌,减少湿作业,提高经济效益开拓了新途径。京城大厦工程中近13万m~2楼地面均采用了一次抹面工艺。京城大厦楼板有三种类型:(1)以组合钢模做模板,混凝土板厚20～25cm,主要用在主楼地下室各层和低层建筑楼地面。(2)以压型钢板做永久性底模,混凝土楼板平均厚度为11cm,主要用于主楼办公层、公用层和设备层。(3)在预应力薄板上叠浇混凝土,现浇层厚6.5～9.5cm,主要用
The surface of a floor is a kind of construction method in which the floor structure layer and the floor decoration layer are cast and formed once when the concrete is poured. It fundamentally solves the common problem of ground hollowing and sanding, and is a reliable method for reducing the thickness of floor slabs and reducing the weight of buildings. It also opens up new avenues for changing the appearance of the site, reducing wet operations and improving economic efficiency. In the Jingcheng Building Project, the surface of nearly 130,000 m2 floor is used to apply a plastering process. There are three types of floor slabs in the Jingcheng Building: (1) The steel molds are used as templates, and the concrete slabs are 20 to 25 cm thick, and are mainly used in the basement floors of the main building and the floors of low-rise buildings. (2) Perforated bottom plate is made of profiled steel plates. The average thickness of concrete slabs is 11cm. It is mainly used for the office building, common floor and equipment floor of the main building. (3) stacking concrete on prestressed thin slabs, casting layer thickness of 6.5 ~ 9.5cm, mainly used