解放前我国的建筑结构设计技术是十分落后的,既无统一的本国设计规范和设计方法,更没有切合我国国情的结构体系。对一些大型工程都委托洋人设计,只有个别的由国外学习归来的技术人员承担,他们不考虑国情的不同及地域的差异,把从国外学到的死搬硬套在工程设计中,不敢越雷池一步。关于所依据的结构设计理论基本上是弹性理论,设计方法则是采用远低于材料试验所得的弹性屈服点的允许应力法,以保证结构设计所必要的安全度,这就给设计中带来了建筑材料的浪费。解放后随着社会主义建设事业的蓬勃发 Before the liberation, China’s architectural structure design technology was very backward. There was no unified national design norm and design method, and there was no structural system that could meet China’s national conditions. For some large-scale projects, foreigners are entrusted with the design, and only individual technicians who are returned from overseas studies are responsible. They do not consider the differences in national conditions and geographical differences, and they put hardships learned from abroad into the engineering design. Thunder pool one step. The structural design theory on which the basis is based is basically an elastic theory. The design method is to use an allowable stress method that is much lower than the elastic yield point obtained from the material test to ensure the necessary degree of safety for the structural design. This brings about the design. The waste of building materials. After the liberation, with the vigorous development of socialist construction