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Seismic zoning for initial- and total-cost minimization

✍ Scribed by Garc�a-P�rez, Jaime

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
194 KB
Volume
29
Category
Article
ISSN
0098-8847

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✦ Synopsis

We consider two design criteria to study seismic zoning. In the "rst, codes require that structures be designed for some speci"ed values. Zoning is then optimal when it minimizes the expected present value of the initial costs of all structures to be built in the region being zoned. In the second criterion, it is designed so that the present value of the total cost is minimized, including initial and maintenance costs as well as losses due to damage and failure. We will call these criteria zoning for the initial-and total-cost minimization, respectively. It is shown that under certain conditions, the boundaries coincide with isoparametric curves and the problem may be solved in one dimension. We also deal with problems not reducible to a single dimension. Di!erent methods are proposed to solve the various kinds of problems. The work ends with some illustrative examples.

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