Role of viscous damping in nonlinear vibration of buildings exposed to intense ground motion

S. Soda

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    It is the purpose of this paper to present how important the role of viscous damping is in preventing buildings from story collapse during intense earthquake ground motion. The paper first covers an earthquake response analysis of a single-degree-of-freedom model with various types of damping. The study shows that only the viscous damping can decrease the displacement of the model subject to large plastic deformation. Then, with the use of some ten-degree-of-freedom shear models, it is found that the viscous damping is capable of making up for a deficient strength of any story of a building, preventing the structural damage from concentrating into that story. Finally, installation of visco-elastic dampers into RC buildings is found to be a better means of improving their ultimate seismic stability than other conventional means of seismic strengthening.

    Original languageEnglish
    Pages (from-to)247-264
    Number of pages18
    JournalJournal of Wind Engineering and Industrial Aerodynamics
    Volume59
    Issue number2-3
    Publication statusPublished - 1996 Mar

    Keywords

    • Frictional damping
    • Ground motion
    • Nonlinear vibration
    • Reinforced concrete building
    • Response spectrum
    • Visco-elastic damper
    • Viscous damping

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Civil and Structural Engineering
    • Mechanical Engineering

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