偏心受压钢筋混凝土长柱承载力分析

采用考虑混凝土材料非线性及长柱几何非线性的有限元方法，对偏心受压钢筋混凝土长柱的承载力进行计算分析，提出了一种较为实用的分析方法。计算结果表明，所提出的方法完全满足偏心受压钢筋混凝土长柱的承载力计算。

Investigation of Load Carrying Capacity of R.C.Long Columns

R.C. long columns are widely used in engineering structures. Due to the large deflection, a full range analysis of R.C.long columns under eccentric load is complicate and difficult. A non linear finite element model was developed for the full range analysis of R.C. long columns. In this model, the non linear behavior of materials and the non linearity of geometry were considered. A non linear analysis computer program was developed for this model, and some practical analysis was made and the results were compared with the test data. The eccentricity amplification factor was analysed in detail. All analysis results showed that the nonlinear F.E.M.model developed in this paper is applicable with sufficient accuracy for practical use.