耗能减震技术在钢结构建筑性能提升中的应用

Study on the Application of Energy Dissipation Damping Technology in the Performance Improvement of Steel Structure Building

本文通过对某钢结构进行减震加固分析,讨论了基于防屈曲钢板剪力墙和黏滞阻尼器两种减震方案在多遇、罕遇地震影响下的性能对比。在多遇地震下,两方案的层间位移角相比原结构都有所减小;在罕遇地震情况下,两种布置方案都有效耗散了地震能量,提高了结构的安全性。对比发现,黏滞阻尼器滞回曲线更加饱满,消耗地震能量较多,两方案布置均满足规范要求。

Based on the analysis of a steel structure,this paper discussed the performance comparison of two damping schemed based on buckling restrained steel plate shear wall and viscous damper under the influence of frequent and rare earthquakes.In the case of frequent earthquakes,the story drift angle of the two schemes was smaller than that of the original structure;In case of rare earthquake,the two layout schemes could effectively dissipate the seismic energy and improve the safety of the structure.It was found that the hysteretic curve of viscous damper was fuller and consumes more seismic energy.Both schemes met the requirements of the code.