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随着我国居住建筑和公共建筑的不断发展,迫切要求提供一些抗震性能好、施工方便而又经济合理的大跨度楼盖结构。预制预应力圆孔板的大开间迭合式连续板是适合我国当前情况的一种较好的结构方案。这一方案的具体做法是在预制预应力混凝土圆孔板的支座部位设置负弯矩普通筋钢,经迭浇面层混凝土后形成连续板。这种采用预制与现浇相结合、预应力混凝土与钢筋混凝土相结合以及部分预应力等新技术的迭合式连续板可以较好地体现预制与现浇两者的优越性,既不用模板,接头连接也容易处理,施工简便;能充分发挥超静定结构塑性
With the continuous development of residential buildings and public buildings in China, it is imperative to provide a large-span floor structure with good earthquake resistance, convenient construction, and economical and reasonable construction. Prefabricated pre-stressed circular orifice plates with wide open and superimposed continuous plates are a better structural solution suitable for the current situation in China. The specific method of this program is to set a negative bending moment ordinary rib steel in the bearing position of the precast prestressed concrete round hole plate, and form a continuous plate after pouring the surface layer concrete. This type of continuous plate, which combines prefabrication with cast-in-place, prestressed concrete combined with reinforced concrete and partial prestressing, can better represent the advantages of both prefabrication and cast-in-place. The connection is also easy to handle and the construction is simple; it can give full play to the statically indeterminate structural plasticity