P-delta actions in seismic resistant structures

  • R. C. Fenwick University of Auckland, Auckland, New Zealand
  • B. J. Davidson University of Auckland, Auckland, New Zealand
  • B. T. Chung University of Auckland, Auckland, New Zealand

Abstract

The results of several thousands of inelastic time history analyses, which have been made on single degree of freedom structures to assess P-delta effects induced in earthquakes, are reviewed. The principal factors influencing P-delta actions are shown to be the ductility, the duration of the severe ground motion, the level of damping and the period of the structure. A method of designing for P-delta effects for single degree of freedom structures is presented. A limited number of analyses of multi-storey frames and walls indicate that the approach may be used for multi-storey structures. This paper gives background information on the P-delta method of analysis given in an appendix to the commentary of the proposed loading code.

References

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Published
1992-03-31
How to Cite
Fenwick, R. C., Davidson, B. J., & Chung, B. T. (1992). P-delta actions in seismic resistant structures. Bulletin of the New Zealand Society for Earthquake Engineering, 25(1), 56-69. https://doi.org/10.5459/bnzsee.25.1.56-69
Section
Articles

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