二十世纪五十年代初,大量工业厂房和民用建筑需要兴建,而结构材料,特别是型钢和木材奇缺,由于难解决厂房钢结构屋盖与钢吊车梁的型钢用料,迫切需要改用预应力混凝土来代替。然而我国在当时的预应力砼技术还处于一穷二白的基础上,经过几十年的发展,我国在这个领域已经取得了一定成绩。主要论述了我国这些年来在预应力砼技术方面取得成就,预测了预应力砼技术的未来发展趋势。 In the early 1950s, a large number of industrial plants and civil buildings needed to be built, and the structural materials, especially the lack of steel sections and sections, were in urgent need of use due to the difficulty of solving the steel sections of the steel structure roofs and steel crane beams Prestressed concrete instead. However, the prestressed concrete technology at that time in our country was still on a poverty-relief basis. After several decades of development, our country has made some achievements in this field. Mainly discusses the achievements of our country in prestressed concrete technology over the years, predicts the future trend of prestressed concrete technology.