Strengthening of Steel Frames in Seismic Resistance
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.
to dispose energy absorbing structural elements in addition to existing structural skeletons
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
to dispose energy absorbing elements over the building evenly, keeping the structural elements which sustain gravitational loadings elastic
KeywordsSteel Frame Energy Absorption Capacity Seismic Input Total Energy Input Panel Zone
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- Akiyama, H. (1985) Earthquake-Resistant Limit-State Design for Buildings, University of Tokyo Press.Google Scholar
- Housner, G. W. (1956) Limit Design of Structures to Resist Earthquakes, Proc. of 1st WCEE.Google Scholar
- Housner, G. W. (1959) Behavior of structures during Earthquake, ASCE, EM4, Oct.Google Scholar
- 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
- 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
- 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