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Probabilistic seismic demand model based on period shift and optimal intensity measure selection
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DOI：10.1016/j.soildyn.2026.110449.png)
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Abstract
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• Compared with the period shift increment, the period shift ratio is better suited as an EDP for constructing a PSDM. • ASI, VSI, DSI, INp , and Sa,avg ( 0.2T1,2T1 ) are selected as the optimal intensity measures (IMs) for developing the PSDM. • Relative to other EDPs, using the period shift ratio as the EDP yields smaller logarithmic standard deviations.
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