Criteria for strengthening buildings
Cost-benefit analysis is misleading
DOI:
https://doi.org/10.5459/bnzsee.36.4.260-262Abstract
Decisions on the merit of strengthening buildings to resist earthquakes should not be made on a cost benefit basis, and in particular should not use estimates of the benefit that are based on the average rate of occurrence of strong ground motion. The distribution of expected ground motion is so skewed that no central measure provides a good representation of the risk. A better procedure is to determine what is the unacceptable level of loss, and then to engineer to the strength that will prevent that loss.
References
Haimes, Y.Y. (1998). Risk Modeling, Assessment and Management. John Wiley & Sons, Inc.
Hopkins, David C. & Stuart, George (2003). Strengthening existing New Zealand buildings for earthquake: an analysis of cost benefit using annual probabilities. PCEE 2003. Proceedings, 7th Pacific Conference on Earthquake Engineering, CD-ROM Paper No. 72.
Smith, W.D & Cousins, W.J. (2002). Effective ways to model earthquake risk. Proceedings, Technical Conference and AGM, New Zealand Society for Earthquake Engineering, Paper No. 2.2.
