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Research on the Rational Yield Ratio of Isolation System and Its Application to the Design of Seismically Isolated Reinforced Concrete Frame-Core Tube Tall Buildings

机译:隔震系统合理屈服比的研究及其在隔震钢筋混凝土框架芯筒高层建筑设计中的应用

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Resilience-based seismic design of reinforced concrete (RC) tall buildings has become an important trend in earthquake engineering. Seismic isolation technology is an effective and important method to improve the resiliency of RC frame-core tube tall buildings located in high seismic regions. However, the traditional design method for this type of building does not focus on the key design parameter, namely, the yield ratio of the isolation system and has therefore been proved to be highly inefficient. To address these issues, the rational yield ratio of isolation system for such buildings is investigated based on 28 carefully designed cases, considering the influences of total heights, yield ratios and seismically isolated schemes. The rational range of the yield ratio is recommended to be 2-3%. Based on this, a high-efficiency design method is proposed for seismically isolated RC frame-core tube tall buildings. Subsequently, a seismically isolated RC frame-core tube tall building with a height of 84.1 m is designed using the proposed design method. The rationality, reliability and efficiency of the proposed method are validated. The research outcome can serve as a reference for further development of the seismic design method for seismically isolated RC frame-core tube tall buildings.
机译:基于钢筋混凝土(RC)高层建筑的基于弹性的抗震设计已成为地震工程中的重要趋势。隔震技术是提高位于高地震区的RC框架-核心筒高层建筑弹性的有效而重要的方法。然而,用于这种类型建筑物的传统设计方法并不关注关键设计参数,即隔离系统的成品率,因此已被证明是非常低效的。为了解决这些问题,基于28个精心设计的案例,研究了此类建筑物的隔离系统的合理屈服比,并考虑了总高度,屈服比和地震隔离方案的影响。收率的合理范围建议为2-3%。在此基础上,提出了一种隔震的RC框架-核心筒高层建筑的高效设计方法。随后,使用拟议的设计方法设计了一座地震隔离的RC框架-芯管高层建筑,其高度为84.1 m。验证了所提方法的合理性,可靠性和有效性。研究成果可为进一步开发抗震RC框架-核心筒高层建筑的抗震设计方法提供参考。

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