摘要
采用统一强度理论,对圆中空夹层钢管混凝土柱进行了研究,分析了钢管的拉压强度比,以及中间主应力对圆中空夹层钢管混凝土柱承载力的影响,提出了圆中空夹层钢管混凝土柱的极限承载力计算公式,与文献资料的试验结果作了比较,验证了理论公式的正确性,并得出了中空夹层钢管混凝土柱和钢管混凝土具有相同优点等结论。该结果为中空夹层钢管混凝土柱的承载力分析计算提供了一定的理论依据,对工程设计有一定的参考价值。
The concrete filled double skin steel tubes column under axial loads is studied based on the unified strength theory in the paper.The strength difference effect(SD Effect)in tension and compression and the intermediate principal stress effect on the ultimate strength for the concrete filled double skin steel tubes column have been investigated.The ultimate load calculation formula for the concrete filled double skin steel tubular column is derived in this paper.Compared with the solution obtained in this paper and the experimental results,the good agreement can be found.Based on the analysis result it can be concluded that the concrete filled double skin steel tubular column has the same merit with the concrete filled steel tube and this solution has an important practical value for engineering application.
出处
《建筑科学与工程学报》
CAS
2005年第1期50-54,共5页
Journal of Architecture and Civil Engineering
基金
陕西省自然科学基金资助项目(2003E215)
教育部博士点基金资助项目(20040710001)
