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介绍了1个3层1/3缩尺的钢管混凝土柱交错桁架结构水平加载试验,并应用ANSYS参数化程序设计语言APDL编制了钢管混凝土柱交错桁架结构非线性分析的命令流。有限元模拟与试验结果吻合较好,验证了有限元模型以及编制APDL命令流的正确性。应用编制的命令流,分析了柱的截面形式、桁架的刚度、高跨比、桁架的形式、荷载偏心等因素对钢管混凝土柱交错桁架结构性能的影响。
A horizontal load test of a 3-storey 1/3 scale concrete-filled steel tubular column with staggered truss structure is introduced and a command flow of non-linear analysis of the cross-staggered truss structure of CFST columns is developed by ANSYS parametric programming language (APDL). Finite element simulation and experimental results are in good agreement, verifying the correctness of finite element model and APDL command flow. The influence of the cross-section of the column, the stiffness of the truss, the span ratio, the form of the truss and the load eccentricity on the staggered truss structure of CFST columns was analyzed.