【摘要】 对典型的利用钢框架直接加层技术改造的钢筋混凝土框架结构应用有限元分析软件ANSYS对其加层前后进行整体抗震分析,并考虑结构阻尼比和加层层数的变化对整体结构的影响,分析加层前后结构自振周期、主要阶振型、内力及位移反应的变化。通过此分析,希望能对以后的实际工程有一定参考作用。更多还原

【Abstract】 The analysis of response spectrum on the seismic properties of the integral reinforced concrete frame after adding steel frame storeys by finite element analysis software ANSYS.The effect of changing the number of adding storeys and damping ratio on the seismic properties of the integral structure is analyzed.The result include the changes of structural vibration cycle,main modes,force and displacement before and after adding steel frame storeys.Some suggestions are proposed on seismic design of adding storeys.更多还原