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Structural Engineering and Mechanics Volume 13, Number 1, January 2002, pages 35-52 DOI: http://dx.doi.org/10.12989/sem.2002.13.1.035 |
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Minimum-weight seismic design of a moment-resisting frame accounting for incremental collapse |
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Han-Seon Lee
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| Abstract | ||
| It was shown in the previous study (Lee and Bertero 1993) that incremental collapse can lead to the exhaustion of the plastic rotation capacity at critical regions in a structure when subjected to the number of load cycles and load intensities as expected during maximum credible earthquakes and that this type of collapse can be predicted using the shakedown analysis technique. In this study, a minimum-weight design methodology, which takes into account not only the prevention of this incremental collapse but also the requirements of the serviceability limit states, is proposed by using the shakedown analysis technique and a nonlinear programming algorithm (gradient projection method) | ||
| Key Words | ||
| shakedown analysis; incremental collapse; earthquake load, plastic hinge; nonlinear programming | ||
| Address | ||
| Department of Architectural Engineering, Korea university ,Seoul 136-701, Korea | ||