采用大型通用非线性有限元软件ABAQUS 6.10分别对4个方钢管混凝土框架-侧边开洞薄钢板剪力墙进行数值分析,明确其受力性能和破坏形态,分析侧边加劲构件对结构刚度、承载力、延性及滞回性能的影响,提出侧边加劲构件截面设计方法。结果表明:方钢管混凝土框架-侧边开洞薄钢板剪力墙具有良好的受力性能和滞回性能;当侧边加劲构件与钢梁铰接时,侧边加劲构件能够显著提高方钢管混凝土框架-侧边开洞薄钢板剪力墙的极限承载力、初始刚度、延性和耗能能力;有限元计算结果与侧边加劲构件设计公式计算结果吻合较好,可供工程应用参考。
ABAQUS 6.10 was used to do a nonlinear numerical analysis of the four concrete filled square steel tube ( CFT) frames-thin steel plate shear walls with side openings .Mechanical behavior , failure pattern and effect of side stiffening components on the stiffness , loading capacity , ductility and hysteretic behavior were researched .And the theoretical formula of cross-section selection of side stiffening components was proposed .Results obtained from this study were as follows .The concrete filled square steel tube ( CFT ) frames-thin steel plate shear walls with side openings had good mechanical behavior and hysteretic behavior .When the side stiffening components had hinged connections with steel girders , the side stiffening components could significantly increase the bearing capacity , stiffness, ductility and energy dissipation .The results of finite element analysis and design formula calculation were in good agreement , which provided a reference for engineering application .