20世纪50年代,林同炎对预应力进行了更深入地研究,创造了“预应力学说”理论体系。预应力理论的完善使预应力钢筋混凝土桥梁得到了飞速发展。随着我国经济发展,材料、机械、设备工业相应发展,这为我国修建大跨径斜拉桥和悬索桥提供了有力保障。再加上广大桥梁建设者的精心设计和施工,使我国建桥水平已跃身于世界先进行列。 In the 1950s, Lin Tongyan conducted a more in-depth study of prestress and created a theoretical system of “prestress theory.” The perfection of prestress theory makes the prestressed reinforced concrete bridges develop rapidly. With the economic development of our country, the corresponding development of materials, machinery and equipment industries has provided a powerful guarantee for the construction of large-span cable-stayed bridges and suspension bridges in our country. Coupled with the extensive design and construction of bridge builders, so that the level of building bridges in China has been leapt to the ranks of the advanced countries.