An alternative system for multi-storey fiats and similar large buildings is to erect a framework of load-bearing precast reinforced concrete horizontal perimeter beam units and vertical mullion units.

• 对于多层公寓或类似的大型建筑来说,另一种选择就是建造一个承重的水平圈梁和竖框预制钢筋混凝土构件框架。