论文部分内容阅读
基于薄钢板剪力墙的等效拉杆理论,利用SAP2000有限元分析软件,并采用改进的能力谱法,通过6个算例研究了层数和跨数对按剪力墙板抗剪承载能力设计的抗弯钢框架薄钢板剪力墙体系在中震下地震力折减系数R、超强系数R_Ω、延性折减系数R_μ和大震下位移放大系数C_d的影响。结果表明:中震下R的变化范围为2.55~2.81,与我国《建筑抗震设计规范》隐含的地震力折减系数2.8125相差不大,R_Ω变化范围为2.51~2.91,R_μ的变化范围为0.9~1.1,大震下C_d的变化范围为3.51~4.12。结构的跨数对R和R_Ω的影响规律都不明显,对R_μ和大震下C_d的影响可以忽略;结构的层数影响较为明显,R、R_μ和大震下C_d都随层数的增加而减小,R_Ω则随层数的增加而增加。
Based on the equivalent drawbar theory of thin steel plate shear wall, using SAP2000 finite element analysis software and improved ability spectrum method, the design of shear wall bearing capacity of shear wall panels is studied by six examples The results show that under moderate earthquakes, the seismic reduction coefficient R, the super strength coefficient R_Ω, the ductility reduction coefficient R_μ and the displacement amplification coefficient C_d under the earthquake are affected by the bending steel frame-thin steel plate shear wall system. The results show that the range of R under medium vibration is 2.55-2.81, which is not much different from the implied seismic force reduction coefficient of 2.8125, the range of R_Ω is 2.51 ~ 2.91, and the range of R_μ is 0.9 ~ 1.1, and the range of C_d under great earthquake is 3.51 ~ 4.12. The effect of cross-numbers of structures on R and R_Ω are not obvious, and the influence on C_d under R_μ and large earthquakes is negligible. The influence of the number of layers is obvious, while the R_μ and C_d under large earthquakes increase with the number of layers Decreases, R_Ω increases with the number of layers.