(1 沈阳建筑大学土木工程学院，沈阳 110168； 2 大连交通规划勘察设计院有限公司，大连 116033)

［摘要］为了研究钢骨混凝土异形柱的受力性能和影响因素，在试验研究的基础上编制了非线性分析程序。对非线性分析得到的承载力与试验进行比较可知，二者误差较小。分析了加载角、偏心距、含钢率、混凝土强度等级以及肢长厚比对构件承载力的影响。结果表明：含钢率的变化对构件的极限承载力影响明显，且极限承载力随着截面含钢率的增大而增大。最后对十字形实腹式钢骨混凝土异形柱实用设计方法进行了探讨。

［关键词］钢骨混凝土；十字形异形柱；非线性分析；承载力

Nonlinear analysis of steel reinforced concrete cross-shaped columns

Xu Yafeng¹，Diao Xiaozheng²，Wang Xin¹(1 School of Civil Engineering， Shenyang Jianzhu University， Shenyang 110168， China；2 Dalian Communications Planning Survey and Design Institute Company， Dalian 116033， China)

Abstract:The procedure of nonlinear analysis has been compiled based on experiment for studying the force performance and effect factors of steel reinforced concrete cross-shaped columns. A good agreement was shown between the bearing capacity of nonlinear analysis and experiment. Load angle, eccentric distance, steel ratio，concrete strength grade and length-thickness ratio had been analyzed. The results show that steel ratio affects the