【摘要】 内嵌屈曲约束钢板剪力墙钢框架由梁、柱以及屈曲约束钢板剪力墙组成,具有刚度与承载力大、延性好的优点,但由于构造形式的复杂,带墙框架的力学性能影响因素较多。为此,本文利用有限元分析方法,首先对已有的内嵌屈曲约束钢板剪力墙钢框架试件建立有限元模型,对其进行验证;然后,根据验证后的有限元模型,进行一系列参数化分析。分析发现,屈曲约束钢板剪力墙的芯板外伸端与柱的连接长度对结构的性能以及屈曲约束钢板剪力墙等效偏心支撑模型的偏心距影响较大。本文将分析结果通过数值拟合方法得到了芯板与柱连接长度跟等效支撑模型偏心距的关系式,以便于实际工程设计分析应用。更多还原

【Abstract】 The buckling restrained steel plate shear walls( BRSPSW) embedded steel frame is a combined lateral resistant structure,which is consisted of beams,columns and BRSPSWs. The lateral resistant stiffness and capacity as well as ductility of this structure are pretty high. Many factors impact the mechanical behaviors of this structure,due to its complicated details. Finite element method( FEM) is applied to analyze the influence of these factors. Firstly,the finite element model is established according to the test specimens,in order to verify the accuracy of the FE model. Secondly,on the basis of the verified FE model,plenty of parametric analysis are conducted to discuss the influence of the joints between core plate of BRSPSW and the columns. The results show that the joint has much to do with the mechanical behavior of the BC-BRSPSW and the eccentric distance of equivalent brace. Then,the equation of the length of the wall-column joints and the eccentric distance is deduced by data fitting method.更多还原