广西南宁新特建材科技发展中心发明了现浇预应力混凝土空心楼板新技术 ,并已申报国家发明专利。“现浇预应力混凝土空心楼板”技术具有减轻楼板自重、防止楼板渗漏和工程造价低等优点。该技术通过在施工中增加一个钢筋强拉工具 ,使钢筋达到预应力楼板的要求后 ,将预应力钢筋焊 Nanning, Guangxi Xinte Building Materials Science and Technology Development Center invented a new technology of cast-in-place prestressed concrete hollow floor, and has declared the national invention patents. “Cast-in-place prestressed concrete hollow floor” technology has the advantages of reducing floor weight, to prevent floor leakage and low construction costs. The technology by adding a steel reinforcement in the construction of tools, so that the steel reaches the requirements of prestressed floor, the prestressed steel welding