一种新型黏弹性阻尼器的研发与应用研究
Development and Application Research of a New Viscoelastic Damper
本文针对高层建筑所使用黏弹性阻尼器材料性能的不足,研发了一种以苯乙烯烃类共聚型热塑弹性体为核心耗能材料的新型黏弹性阻尼器,并对两个新型阻尼器试件进行了反复加载试验。试验结果表明,使用该材料的阻尼器具有变形大、温度敏感性低及耗能能力强等优点,在不同温度下均能提供饱满稳定的滞回曲线。在此基础上,提出了针对该新型阻尼器的结构设计方法,并以某实际超高层建筑为案例,完成了阻尼器的布置,通过时程分析验证了所提方法的有效性,为该新型黏弹性阻尼器在高层建筑抗震、抗风设计中的工程应用提供了参考。
This paper addresses the limitations of materials used in viscoelastic dampers for high-rise buildings and develops a new type of viscoelastic damper with styrene-hydrocarbon copolymer thermoplastic elastomer as the core energy-dissipating material. Cyclic loading tests were conducted on two specimens of the novel damper. The test results demonstrate that the damper utilizing this material offers advantages such as large deformation capacity, low temperature sensitivity, and strong energy dissipation capability, providing full and stable hysteretic curves under various temperatures. Based on these findings, a structural design methodology for the new damper is proposed. A practical super high-rise building is adopted as a case study to complete the damper layout, and time-history analysis is performed to verify the effectiveness of the proposed method. This study provides a reference for the engineering application of the new viscoelastic damper in seismic and wind-resistant design of high-rise buildings.
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科技部国家重点实验室基础研究资助项目(SLDRCE19-A-10)
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