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About the pushover analysis

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Dear Michael Valley

You wrote

<It is possible to reflect some of the higher mode response and
"interstory movement differences" in a push over analysis by changing
the pattern of applied loads as the analysis progresses.  One useful
methods bases the pattern of loads on the modal content at different
yield states.  The goal here is to monotonically increase the total
shear applied but to capture incremental changes in the possible
dynamic response>

I'm interested in the change of lateral forces distribution by mode shapes
during pushover analysis.
Would you explain the process in more detail ?
Please let me know whether those process is used in practical
engineering.not academic.

Thanks in advance

Youngkyu Ju
Daewoo Institute, R.E.