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提出一种框支剪力墙结构消能减震策略——黏性液体阻尼器只布置在框支层。标准层剪力墙优先布置在四角,其余部分可采用短肢剪力墙或框架柱,以减小扭转响应;黏性液体阻尼器仅提供阻尼,可在框支层灵活布置,与部分框支剪力墙相比,优势明显。首先通过对1栋10层框支剪力墙结构进行弹性时程分析,验证了剪力墙布置策略是否恰当;然后针对设计基本地震加速度为0.15g的1栋15层建筑案例,考虑7种设计方案进行弹性与弹塑性时程分析。结果表明,采用消能减震措施后,框支剪力墙结构的安全性可得到更好的保证。
A strategy of energy dissipation and cushioning with frame-supported shear wall is put forward. The viscous liquid damper is only arranged on the frame support. The standard shear walls are preferentially arranged at the four corners, and the rest can adopt short-limb shear walls or frame columns to reduce the torsional response. The viscous liquid damper only provides damping, which can be flexibly arranged in the frame support and partially framed Compared with the shear wall, the obvious advantages. Firstly, the elastic time-history analysis of a 10-story RC shear-wall structure is carried out to verify the suitability of the RC wall layout strategy. Then, for a 15-story building with a basic earthquake acceleration of 0.15g, seven kinds of designs Program elastic and elastoplastic time history analysis. The results show that the safety of the frame-supported shear wall structure can be better guaranteed by adopting the energy dissipation measures.