Abstract：In order to make full use of the tensile strength of the axially loaded compressive members, a new type of compressive load-carrying member, i.e., the inflatable axially compressive members with rigid-outer-wall, denoted as IACMR, is proposed. The configuration and working modes of the newly proposed member are introduced in detail. The member has good stability and adjustable load-carrying capacity, and the axially compressive load applied to it is fully carried by the internal high-pressure airbag without resulting in compressive stress in the outer rigid wall. The load-carrying capacity formula of the newly proposed member is derived and compared with that of thin-walled steel tube. The results indicate that the member has enough load-carrying capacity when the slenderness ratio of this member is large. Taking dome structures and radio telescope structures as examples, the proposed members are used. A conclusion is drawn that the total weight of structure can be significantly reduced by using the proposed members. For structures with high surface precision, the load-carrying capacity can be adjusted by inflating or deflating the members to compensate the loss of surface precision. From the view of engineering application, the proposed member has good prospect.
李玉刚 黄 河 钟 杰. 刚壁气承轴心受压杆件的受力性能分析[J]. 土木工程学报, 2019, 52(1): 37-43.
Li Yugang Huang He Zhong Jie. Study on load-carrying capacity of inflatable axially compressive member with rigid-outer-wall. 土木工程学报, 2019, 52(1): 37-43.
