某多层“自定义”钢结构住宅隔震设计
doi: 10.13204/j.gyjz2001407035
A SEISMIC ISOLATION DESIGN FOR A MULTI-STORY CUSTOM STEEL STRUCTURE RESIDENCE
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摘要: 结合某多层"自定义"钢结构住宅工程,采用基础隔震体系及非隔震体系,对结构抗震性能进行综合对比分析。分别以El centro波、天津波(南北向)、合成人工波为地震动输入求解结构的动力响应;对结构延性需求进行分析,用两个自由度的Bouc-Wen滞回模型进行非线性动力分析,对其生命周期成本进行简要分析。结果表明:渐于成熟的隔震技术同样适用于钢结构体系。该钢结构住宅考虑隔震设计后,在满足承载力要求的前提下,隔震层有效控制了上部结构振动,结构地震响应有效降低,层间加速度反应大大减小,建筑物的安全性能得到保证,满足了住宅结构对舒适性的更高要求。Abstract: Adopting the common and base isolation and non-islotion systems,comparative analysis of structure’s seismic performance was conducted on a multi-storey custom steel structure residence. El centro wave,Tianjin wave and an artificial earthquake wave are the seismic input. A two-degree of freedom Bouc-Wen hysteretic model was used to simplify the vibration isolation structure when analyzing the ductility demands. A brief analysis of the life cycle cost of this residence was also worked out. The results demonstrate that the gradually matured seismic isolated technology can be applied to steel structures as well. With the satisfaction of required bearing capacity,the seismic isolation layer has effectively controlled the vibration of superstructure,the structural response to earthquake has been effectively reduced and the interstorey acceleration response has also been greatly reduced,the safety of this structure has been guaranteed. Which meets the higher requirements towards the comforts of residence structures.
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Key words:
- steel residence /
- custom /
- seismic isolation design /
- dynamic analysis /
- life-cycle cost
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