【摘要】 对平面钢框架算例模型分别采用质点系、双翼鱼刺型和杆系振动模型输入天然和人工地震波进行地震响应时程分析.在分析中,与质点系振动模型相关的结构侧移刚度矩阵由反弯点法、D值法、非线性静力分析法以及柔度法确定;与双翼鱼刺型振动模型相关的结构侧移刚度矩阵由双鱼刺法确定;与杆系振动模型相关的结构侧移刚度矩阵由矩阵位移法确定.通过算例讨论了采用上述不同方法确定的结构侧移刚度对结构地震响应影响.更多还原

【Abstract】 The plane steel framework examples are studied as the mass-system model,two-winged fishbone-shaped model and the rod model separately.Natural and artificial seismic waves are exerted on the models,and the time history seismic responses are analyzed.The vibration model related to the structural stiffness matrix of mass-system model is determined with the anti-bend-point method,the D value method,the nonlinear static analysis method as well as the compliance method.The vibration model related to the structural stiffness matrix of two-winged fishbone-shaped model is determined with two-winged fishbone-shaped method.Then the vibration model related to the structural stiffness matrix of rod model is determined with the matrix displacement method.Results indicate that the matrix displacement method,the compliance method and the nonlinear static analysis method are more accurate,and the application conditions of anti-bend-point method are confirmed.更多还原