新型现浇钢筋混凝土双向空心楼板正截面承载力简化计算

摘要

新型现浇钢筋混凝土双向空心楼板采用球状塑料填充物阵列排列形成空腔，具有自重轻、双向承栽、施工方便，同时具有一定保温隔音性能等特点。针对这一新型现浇钢筋混凝土空心楼板，根据刚度、面积等效的原则，对普通钢筋混凝土楼板与新型现浇钢筋混凝土空心楼板的正截面承栽力计算进行了比较分析，得出普通现浇钢筋混凝土楼板的设计计算方法可以作为该种新型空心楼板的简化设计计算方法。%A new type of cast-in-situ reinforced concrete biaxial hollow slab can be poureu Dy placing spnerical plastic filler in the center of the steel reinforcement cage. The slab has the advantages of light weight, load-carrying capacity in two-direction, convenient construction, thermal insulating and sound insulating, etc. According to the equivalence principle in stiffness and area, ordinary reinforced concrete slab and the new bi- axial hollow slab are compared in bearing capacity of normal section. And design calculation of ordinary rein- forced concrete slab can be used as simplified method of the new biaxial hollow slab.