【摘要】 利用有限元分析软件SPA2000,建立12层的钢框架结构,在原框架底层柱X方向、Y方向添加BRC结构。分析三种结构方案在EL-Centro波、Taft波和TRI_TREASURE ISLAND₉0这三种地震波作用下的顶层最大位移、基底剪力和顶层绝对加速度时程分析这几种结构反应。结果表明:BRC结构与传统钢结构相比,自振周期有所增加,对顶层最大位移和基底剪力的控制效果非常明显,具有显著的减震效果。更多还原

【Abstract】 By using finite element analysis software SPA2000,12 layers of steel frame structure were set up.In X direction and Y direction of original framework bottom column,BRC structure was constructed.The top maximum displacement,base shear and top absolute acceleration time history of three structure scheme under the action of seismic wave as follow EL-Centro wave,Taft wave and TRI_TREASURE ISLAND₉0 were analyzed.The results show that comparing with the traditional steel structure,the natural vibration period of BRC structure increased.The control effect of top floor of the maximum displacement and basal shear control is very apparent.This structure has obvious damping effect.更多还原