Sensitivity of the Earthquake Response of Tall Steel Moment Frame Buildings to Ground Motion Features |
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| Authors: | Swaminathan Krishnan Matthew Muto |
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| Institution: | 1. Mechanical and Civil Engineering Department , California Institute of Technology , Pasadena , California , USA krishnan@caltech.edu;3. Mechanical and Civil Engineering Department , California Institute of Technology , Pasadena , California , USA;4. Southern California Edison , San Dimas , California , USA |
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| Abstract: | The seismic response of two tall steel moment frame buildings and their variants is explored through parametric nonlinear analysis using idealized sawtooth-like ground velocity waveforms, with a characteristic period (T), amplitude (peak ground velocity, PGV), and duration (number of cycles, N). Collapse-level response is induced only by long-period, moderate to large PGV ground excitation. This agrees well with a simple energy balance analysis. The collapse initiation regime expands to lower ground motion periods and amplitudes with increasing number of ground motion cycles. |
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| Keywords: | Earthquake Ground Motion Tall Buildings Conditions for Collapse Response Sensitivity Damage Nonlinear Analysis Peak Ground Velocity Pulse Period Duration |
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