Earthquake‐resistant structural design through energy demand and capacity |
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| Authors: | Adang Surahman |
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| Institution: | 1. Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung (ITB), Jl. Ganesha 10, Bandung 40132, Indonesia;2. Professor of Structural Engineering. |
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| Abstract: | An energy‐based earthquake‐resistant structural design method is proposed. The proposed method uses specific input energy spectra, modal or time‐history analyses, and energy distribution among structural members. For a given member strength and stiffness, a relationship between the energy attributable to damage absorbed by a member and its cumulative ductility demand can be determined. Member strength, stiffness and energy capacity are design parameters which are simultaneously used in the design. The method can avoid soft‐storey design. The damage is measured based on a cumulative basis considering earthquake magnitude, frequency, and duration. Tests have been carried out to determine energy absorbing capacities of various structural components. More efforts are needed to make the energy‐based earthquake‐resistant structural design practical, but ssimple formulations for this method are possible. Copyright © 2007 John Wiley & Sons, Ltd. |
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| Keywords: | energy‐based design cumulative ductility plastic ductility equivalent velocity energy distribution energy capacity |
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