Performance of seismic shear panels under near-field motions

  • Authors

    • Mariella Mariella Diaferio
    2018-04-20
    https://doi.org/10.14419/ijet.v7i2.23.11915
  • Near-Field Earthquakes, Seismic Passive Devices, Performance Parameters.

  • The purpose of this study is to describe the structural response of steel frames with different stiffness and geometrical characteristics subjected to near-field earthquakes. Such actions, in fact, may be responsible of high levels of damage, as they are characterized by pulses of high amplitude. Thus, the effects on the structures are quite different from the ones induced by far-field earthquakes. In detail, the main aim is to evaluate the performance of such frames equipped with passive devices: two hysteretic dampers are considered which during the seismic action are mainly interested by shear stresses.  Nevertheless, the main characteristics of their hysteretic behavior are different and, consequently, for a correct use the comparison of the performance is an important tool. Thus, the response of the protected frames is evaluated varying the characteristics of the near-field motions. 

     

     

  • References

    1. [1] Chopra AK and Chintanapakdee C (2001) Comparing response of SDF systems to near-fault and far-fault earthquake motions in the context of spectral regions. Earthquake Engineering and Structural Dynamic 30, 1769-1789.

      [2] Chopra AK and Chintanapakdee C, (2001) Drift Spectrum vs. Modal Analysis of Structural Response to Near-Fault Ground Motions. Earthquake Spectra 17(2), 221-234.

      (a)

      (b)

      Fig. 12: Peak absolute floor accelerations for C2P6 frame a) equipped with SL with Fy=85% V; b) equipped with SL with Fy=85% V.

      [3] Alavi B., Krawingler H. “Consideration of near-fault ground motion effects in seismic designâ€, Proceedings of the 12th WCEE, New Zealand, 2000;

      [4] Ambraseys N.N., Douglas J. (2003) Near-field horizontal and vertical earthquake ground motions. Soil Dynamics and Earthquake Engineering 23, 1–18.

      [5] Baker JW (2007) Quantitative classification of near-fault ground motions using wavelet analysis. Bull of the Seismol Soc of America. 97(5), 1486-1501

      [6] Chais X., Bozzo L., Torres L., Foti D. An Energy Dissipating Device for Seismic Protection of Masonry Walls. Proceedings of the 8th Convegno Nazionale “L’Ingegneria Sismica in Italiaâ€, Taormina, Italy, 1997, p. 1005-1011.

      [7] PEER (Pacific Earthquake Engineering Research) database

      [8] Chais X, Torres L, Bozzo L (2000) “An innovative elasto-plastic energy dissipater for the structural and non-structural building protection†Proceedings of the 12th World Conference on Earthquake Engineering; Auckland, New Zeland, 30 January - 4 February.

      [9] Chais X, Bozzo L, Torres L, Foti D (2001) Experimental Tests on Hybrid,Semi-active and Passive Devices for Seismic Risk Mitigation. In: Report n°7, ISMES, Ed. Giorgio Franchioni Rew. R.T. Severn, C. Taylor, Part 2.

      [10] Tirca L, Foti D, Diaferio M (2003) Response of middle-rise steel frames with and without passive dampers to near-field ground motions. Engineering Structures 25(2),169-179.

      [11] Diaferio M, Foti D (2016) Mechanical behavior of buildings subjected to impulsive motions. Bulletin of Earthquake Engineering, 14(3), 849-862

      [12] Foti D, Diaferio M. Shear Panels for the Seismic Protection of Buildings. In: Proceedings of the 4th International Conference of the European Association for Structural Dynamics. p. 1223-1228, Rotterdam:A.A. Balkema, Praga, 7-10 June 1999

      [13] Shaking Table tests on shear panels for the seismic protection of uildigns ECOEST2 Project Reporto 304/00 – C3ES

      [14] SAP2000 ® Linear and Nonlinear Static and Dynamic Analysis and Design of Three-Dimensional Structures. Computers and Structures,

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  • How to Cite

    Mariella Diaferio, M. (2018). Performance of seismic shear panels under near-field motions. International Journal of Engineering & Technology, 7(2.23), 196-200. https://doi.org/10.14419/ijet.v7i2.23.11915