| Concrete-Filled Double Skin Tube is a new Steel Tube Confined Concrete Structure. The component is placed on the two concentric steel tube and pouring concrete between two layers of formed steel components. The Steel Tube Confined Concrete Structures not only maintains the traditional characteristics of concrete structures,but also has carried out cross-section, bending stiffness, light weight, good seismic performance and fire performance characteristics. In view of the actual situation, this paper has studied on Static Performance of Steel Beam to Concrete-filled double skin steel tubular column. The specific work is carried out by the following aspects:(1) This article summarized the characteristics of Concrete-filled double skin tube structures,as well as the subject's background, the purpose of this research, methods and content.(2) The static performance of 9 concrete-filled double skin steel tubular columns joint with circular hollow section inner and circular hollow section outer columns are studied in this article. The parameters are the axial compression ratio and hollow section ratio.(3) The effects of various parameters on the mechanical properties and failure modes of these joints are studied, also the influences of the axial compression ratio and hollow section ratio on the ultimate bearing capacity and strain are analyzed.(4) The results show that the hollow section ratio and the axial compression ratio have a great influence on the static properties of Steel Beam to Concrete-filled double skin steel tubular column. With the hollow section ratio increased, the ultimate bearing capacity decreased. |
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