钢筋高强混凝土偏压中长柱承载力研究
The bearing capacity research for slender reinforced high strength concrete columns under eccentric compression loading

基于考虑材料非线性和几何非线性耦合梁柱单元模型，采用编制的钢筋高强混凝土结构非线性数值分析程序，分析钢筋高强混凝土偏压中长柱极限承载力主要影响因素有长细比、相对偏心距、混凝土强度、纵筋配筋率等. 研究钢筋高强混凝土偏压中长柱极限承载力对各主要影响因素的敏感性，依次为相对偏心距、长细比、纵筋配筋率和混凝土强度. 通过回归给出钢筋高强混凝土偏压中长柱极限承载力的计算公式，为实际工程应用提供计算参考.
The bearing capacity was researched for slender reinforced high strength concrete (RHC) columns under eccentric compression loading. Based on the element model of beam-column when considering material nonlinearity and geometric nonlinearity，the computer program was given about nonlinearity analysis for RHC structures. Then main affecting factors were researched，such as slenderness ratio，relative eccentricity，concrete strength，and longitudinal reinforcement ratio. The influencing order of these factors was relative eccentricity，slenderness ratio，longitudinal reinforcement ratio，and concrete strength，on the bearing capacity for slender RHC columns under eccentric compression loading. As last，the design formula of the bearing capacity was given for slender RHC columns under eccentric compression loading by using the regression statistics method，this would offer design reference