Analysis of damping performance of the frame structure with high-efficiency energy dissipation viscoelastic dampers
Received:October 05, 2022  Revised:January 06, 2023
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DOI:10.7511/jslx20221005001
KeyWord:frame  damp  high-efficiency  damping  viscoelasticity  equivalence  magnification
     
AuthorInstitution
张敏 江西科技师范大学 建筑工程学院, 南昌 ;华东交通大学 土木建筑学院, 南昌
舒磊兴 华东交通大学 土木建筑学院, 南昌
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Abstract:
      A high-efficiency energy dissipation viscoelastic damper (HEVD) is proposed,and the seismic performance of a frame structure with a HEVD is studied.Firstly,the construction of the viscoelastic damper with high efficiency energy dissipation is presented,the formulas for calculating the damping magnification factor under small,large and giant earthquakes are derived,and the variation law of the magnification factor is analyzed.In addition,the equivalent damping ratio of the frame structure with the HEVD is derived.The analysis shows that the difference of the time-history curve of the top displacement of the frame structure before and after the damping equivalence is not more than 10%.