Abstract：Welded hollow spherical joints with a diameter of over 1m and stiffeners were implemented in steel tube towers for large-span transmission line system. The computational method for load-carrying capacity specified in the code may not be suitable, because the diameters of the joints are too large. The finite element method (FEM) was utilized to model these hollow spherical joints with varied design parameters, and the corresponding tensile bearing capacities were attained via numerical analysis. The contribution of the stiffeners to tensile bearing capacity was discussed based on the analysis on failure mode. An empirical equation which reflects the contribution of the stiffeners is thus attained. The results obtained from the empirical equation, code, experiment and FEM calculation were compared. It is shown that the empirical equation is capable of effectively reflecting the ultimate tensile bearing capacity.
陈勇，关士杰，郭勇，王激扬，杨骊先，孙炳楠. 超1m直径加劲焊接空心球节点的抗拉极限承载力研究[J]. 土木工程学报, 2016, 49(2): 1-10.
Chen Yong, Guan Shijie, Guo Yong, Wang Jiyang, Yang Lixian, Sun Bingnan. Study on ultimate tensile bearing capacity of welded hollow spherical joints with stiffeners and a diameter of over 1m. 土木工程学报, 2016, 49(2): 1-10.
