【摘要】 针对钢管混凝土双肢柱肩梁设计方法相关规范、规程不统一的现状,究竟哪种设计方法更符合实际?论文以合肥合锻机床股份有限公司重型压力机装配1#厂房工程中钢管混凝土双肢柱单腹板边柱肩梁为研究对象,通过建立有限元分析模型,分析其在最不利水平荷载和竖向荷载作用下的受力性能。将有限元模拟结果与现有肩梁设计方法的理论计算结果进行比较,对比分析结果表明肩梁多以剪切变形为主,考虑部分翼缘有效是比较合理的设计方法,同时提出了提高肩梁承载能力的相关技术措施,为类似钢管混凝土单腹板肩梁设计提供参考。更多还原

【Abstract】 In the light of relating codes of double steel tube-confined concrete columns shoulder-beam design methods are not unified situation and which kind of design methods is more accord with the actuality on earth.The paper took the single-web shoulder-beam in side column member of double steel tube-confined concrete columns which were used in heavy press assembly 1# factory in Hefei Metalforming Machine Tool Co.,Ltd for studying object and analysised its mechanical properties under the most unfavorable horizontal load and vertical load through the established finite element model.Compared simulation results with theoretical calculated values of the current design methods,the comparative analysis results showed that the main damage form of shoulder-beam is shear failure,and considering part flange action of shoulder-beam is a reasonable design method.At the same time,we put forward some related technical measures in improving the bearing capacity of shoulder beam,providing reference for relevant engineering design of shoulder-beam in steel tube-confined concrete columns.更多还原