Aspects of drift and ductility capacity of rectangular cantilever structural walls

Authors

  • M. J. N. Priestley University of California, San Diego, USA
  • M. J. Kowalsky University of California, San Diego, USA

DOI:

https://doi.org/10.5459/bnzsee.31.2.73-85

Abstract

Moment-curvature analyses of cantilever shear walls are used to show that yield curvature, serviceability curvature, and ultimate (damage-control) curvature are insensitive to variations of axial load ratio, longitudinal reinforcement ratio, and distribution of longitudinal reinforcement. The results are used to determine available displacement ductility factors for walls of different aspect ratios and drift limits. It is shown that drift capacity will generally exceed code levels of permissible drift, and that code drift limits will normally restrict, sometimes severely, the design displacement ductility factor.

References

Paulay, T. and Priestley, M.J.N., (1993) Seismic Design of Concrete & Masonry Structures, John Wiley & Sons, New York, 744 pages.

Priestley, M.J.N., (1993) Myths & Fallacies in Earthquake Engineering -- Conflicts Between Design & Reality, Bulletin NZNSEE, Vol. 26, No. 3, September, pp 329-341.

Priestley, M.J.N., Seible, F. and Calvi, E.M., (1996) Seismic Design & Retrofit of Bridges, John Wiley & Sons, New York, 686 pages. DOI: https://doi.org/10.1002/9780470172858

SANZ -- NZS4203:1993, Code of Practice for General Structural Design and Design Loadings for Buildings, Standards Association of New Zealand, Wellington.

SANZ -- NZS3101: 1995, Concrete Structures Standard (Parts 1 & 2), Standards Association of New Zealand, Wellington.

King, D., Priestley, M.J.N. and Park, R., (1986) Computer Programs for Concrete Column Design, Research Report 86/12, Department of Civil. Engineering, University of Canterbury, New Zealand, May.

Paulay, T., (1997) A Review of Code Provision for Torsional Seismic Effects in Buildings, Bulletin NZNSEE, Vol. 30 No. 3, September, pp 252-263.

Priestley, M.J.N. and Calvi, G.M., (1997) Concepts and Procedures for Displacement-Based Design and Assessment, Bled, Slovenia, Proceedings of the Workshop on Seismic Design Methodologies for the Next Generation of Codes, June 24.

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Published

30-06-1998

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How to Cite

Priestley, M. J. N., & Kowalsky, M. J. (1998). Aspects of drift and ductility capacity of rectangular cantilever structural walls. Bulletin of the New Zealand Society for Earthquake Engineering, 31(2), 73-85. https://doi.org/10.5459/bnzsee.31.2.73-85