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,由于难以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,经过这几十年的发展,我国在这个领域应经取得了一定成绩。主要论述了我国这些年来在预应力砼技术方面取得成就,同时,还分析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 steel and wood, were in short supply. Due to the difficulty of solving the steel for building steel structure roof and steel crane girder, it is urgent to switch to prestressed concrete Instead. However, at the time of our country, the prestressed concrete technology was still on a poor and inefficient basis. After several decades of development, our country should have achieved some success in this field. Mainly discusses the achievements of our country in the prestressed concrete technology over the years, meanwhile, analyzes the future development trend of the prestressed concrete technology.