预应力技术从理论到工程实践经过几代人的研究和不断创新,已发展成为比较成熟的技术。随着预应力技术的发展和不断完善,尤其是悬臂、顶推等先进施工方法的出现,使预应力混凝土桥梁如虎添翼,活跃在整个桥梁工程领域。对预应力在施工过程中常出现的质量问题进行分析,并且提出控制措施。 Prestressed technology from theory to engineering practice after several generations of research and continuous innovation, has developed into a more mature technology. With the development of prestressed technology and continuous improvement, especially the emergence of advanced construction methods such as cantilever and jacking, the prestressed concrete bridge is more powerful and active in the whole field of bridge engineering. Prestressed in the construction process often appear quality problems are analyzed, and proposed control measures.