Research Article
Jun 1980
Inelastic Response Spectra for Aseismic Building Design
Publication: Journal of the Structural Division
Volume 106, Issue 6
Abstract
The variability of inelastic response spectra is investigated by time-history analysis using sets of artificial ground motions with different strong-motion durations. It is concluded that the Newmark-Hall inelastic response spectra of elasto-plastic systems are unconservative for 5% damping, and conservative for 2% damping. New inelastic response spectra are proposed for different ductility ratios and damping coefficients. A 10-story steel moment-resisting frame is designed and analyzed to assess the validity of the design procedure based upon modal analysis and inelastic response spectra. The results indicate that at least for this or similar frames, the method is satisfactory. However, the procedure leads to slightly unconservative design for upper-story exterior columns. The study also suggests that the maximum lateral story displacement predicted directly by the SRSS modal analysis using the inelastic displacement response spectrum is too conservative. The conservatism is more pronounced in the upper stories.
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Published In
Journal of the Structural Division
Volume 106 • Issue 6 • June 1980
Pages: 1295 - 1310
Copyright
© 1980 American Society of Civil Engineers.
History
Published in print: Jun 1980
Published online: Feb 1, 2021
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Authors
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Shih-Sheng P. Lai, AM.ASCE
Grad. Research Asst., Dept. of Civ. Engrg., Massachusetts Inst. of Tech., Cambridge, Mass.
John M. Biggs, M.ASCE
Prof., Dept. of Civ. Engrg., Massachusetts Inst. of Tech., Cambridge, Mass.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.