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大跨度SP预应力混凝土空心板是采用美国SP公司技术与设备生产的一种新型预应力混凝土材料,具有很多优点,填补了国内大跨度板的空白,对其进行结构性能检验是非常重要的。
The long-span SP prestressed concrete hollow slab is a new type of prestressed concrete produced by the technology and equipment of American SP Company. It has many advantages and fills the gap of the domestic long-span slab. It is very important to test its structural performance.