【摘要】 基于江西某钢框架结构办公楼,通过SAP 2000有限元软件建立基础隔震和非基础隔震两个钢框架有限元计算模型,选用El Centro地震波对钢框架结构的动力反应进行详细分析。研究结果表明:基础隔震技术可以有效减小地震对钢框架结构的影响,可有效延长结构的自振周期,减小层间剪力、楼层加速度和层间相对位移,并可以增强结构的一体性,使钢框架的上部结构整体平动。更多还原

【Abstract】 Taking a steel-frame structure office building in Jiangxi as an example,the dynamic principle and the finite element theory were used to establish the finite calculation model of two steel frameworks of base-isolated and non-baseisolated buildings through the finite element software SAP 2000. The El Centro seismic wave was selected to study the structural dynamic response in detail. The research results showed that the base isolation technique could effectively reduce the impact of the earthquake on the steel frame structure,effectively extend the period of natural vibration of the structure,reduce the inter-story shear force,floor acceleration,and the relative displacement between layers,and even could enhance the integration of the structure,then the entire structure of the steel frame could be translated.更多还原