1950～1975年间,英国的研究工作者对预应力结构,特别是对复杂空间箱形梁结构性能的研究取得了很大的进展。与此同时,对复杂结构的分析能力也得到了迅速提高。这首先是由于结构分析的数值方法的发展和大型计算机的应用,其次是由于小型和微型 From 1950 to 1975, researchers in Great Britain made great progress in the study of prestressed structures, especially for the performance of complex space box girders. At the same time, the ability to analyze complex structures has also rapidly increased. This is primarily due to the development of numerical methods for structural analysis and the use of large computers, followed by small and miniature