VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Inelastic shear response of RC coupled structural walls [Elektronski vir]
    Morariu, Evgen ...
    The paper presents a discussion of the inelastic dynamic magnification of seismic shear forces in coupled walls having two piers with rectangular cross-sections. A parametric study was performed in ... order to extend the expressions previously proposed for cantilever walls and incorporated into Eurocode 8. The parameters include the number of stories (8, 12 and 16), the model for the stiffness of the coupling beams (independent or dependent on the strength), the coupling intensity index, and the shape of the spectrum (EC8 - Soil C and constant). The results obtained with the proposed expressions were compared with the results of inelastic response history analyses. The results are somewhat conservative, in particular for the high flexible walls. Corrections, accounting for the possible flexural yielding of piers in the upper stories improve the results. Amplification strongly depends on the shape of the spectrum, but it is quite insensitive to coupling intensity. Three different models for the distribution of the global shear force to individual piers were studied. Most frequently used model, which allocates the shear force in proportion with the flexural capacity of each pier at the base, proved to be very conservative. The closest match with the results of the inelastic response analysis was obtained when only the shear force due to the first mode was redistributed according to the flexural capacity at the base of the individual piers and the shear forces due to the higher modes were equally distributed to both piers.
    Vir: Reducing risk- raising resilience [Elektronski vir] : NZSEE 2016 (Str. 1-8)
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 2016
    Jezik - angleški
    COBISS.SI-ID - 7586401

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