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Strengthening of Steel Frames in Seismic Resistance

  • H. Akiyama
Part of the International Centre for Mechanical Sciences book series (CISM, volume 435)

Abstract

Based on the balance of energy between the seismic input and the structural resistance, the basic formulation for strengthening buildings is derived. The loading effect of an earthquake can be grasped as the energy input, while the seismic resistance of an building can be considered to be the energy absorption capacity of the building.

In order to improve the seismic resistance of existing buildings, the following methods are effective;
  1. 1)

    to dispose energy absorbing structural elements in addition to existing structural skeletons

     
  2. 2)

    to equip an energy absorbing story with the energy absorption capacity large enough to be able to absorb the total energy input, leaving the other stories undamaged

     
  3. 3)

    to dispose energy absorbing elements over the building evenly, keeping the structural elements which sustain gravitational loadings elastic

     

Keywords

Steel Frame Energy Absorption Capacity Seismic Input Total Energy Input Panel Zone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Akiyama, H. (1985) Earthquake-Resistant Limit-State Design for Buildings, University of Tokyo Press.Google Scholar
  2. Housner, G. W. (1956) Limit Design of Structures to Resist Earthquakes, Proc. of 1st WCEE.Google Scholar
  3. Housner, G. W. (1959) Behavior of structures during Earthquake, ASCE, EM4, Oct.Google Scholar
  4. Akiyama, H. (1986) Ds-Values for Multi-Story Frames on the Top Story of Which Damage Concentrates, Transaction of Architectural Institute of Japan, No. 362.Google Scholar
  5. Asano, M., Kohno, T. and Nitayama, N. (2000.6) Seismic Strengthening Using Energy Absorption Brace. US-Japan Symposium on Seismic Rehabilitation of Concrete Structures.Google Scholar
  6. Ogura, K., Maezawa, S., Tsujita, O., Kobayashi, J. and Nakata, Y. (1997) Seismic Isolation Retrofit at Mid-story and Base, AU Journal of Architecture and Building ScienceGoogle Scholar

Copyright information

© Springer-Verlag Wien 2002

Authors and Affiliations

  • H. Akiyama
    • 1
  1. 1.Nihon UniversityTokyoJapan

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