【摘要】 首先建立了钢框架-支撑结构杆系-层模型理论的动力特性分析简化模型,提出基于该模型的剪切型和弯剪型结构体系固有频率与基本周期的理论计算方法及其2种实用计算方法。最后通过算例对本文计算结果与ANSYS分析结果、美国UBC计算结果对照分析,对影响该结构体系固有频率与基本周期的相关因素进行了详细分析。更多还原

【Abstract】 The model of bars-floor about the structural system of steel braced frame for dynamical analysis is established,two applied methods and the theory method for computing the natural frequency and fundamental period of the structural system are presented.Based on the engineering deigned example,the results of the author’s methods,finite element analysis software of ANSYS and UBC are compared.some influencing factors of the natural frequency and fundamental period of the structural system are also analyzed.更多还原