立体拱架结构体系是在综合了索及拱结构等优点的基础上,构思出的一种新型大跨度空间结构形式.作为一种轻巧、高效的大跨度结构,立体拱架结构已经有广泛的应用.为了进一步研究该结构形式的受力性能,制作了比例为1∶20的缩尺模型,并进行试验研究.结果表明:在荷载作用下,拱脚受力最大,其余构件受力较小且处于弹性阶段;索对提高结构承载力及抵抗结构变形起到非常重要的作用. The three-dimensional arch structure system is a new type of large-span space structure conceived based on the merits of cable and arch structure, etc. As a lightweight and efficient long-span structure, the structure of the three-dimensional arch structure has been extensive Application.In order to further study the mechanical behavior of the structure, a scale model with a ratio of 1:20 was fabricated and tested. The results show that under the action of load, And in a flexible stage; cable to play an important role in enhancing the structural capacity and resistance to structural deformation.