### Strutt Help

Response Factor
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**Strutt|Criteria|Ratings|Vibration|Response Factor** calculates the Response Factor of the spectrum of the current row and inserts it into Column D of the active row

Strutt calculates the Response Factor using the AS2670.2 base curve for perception of building vibration as follows:

`RF=sqrt(sum_(f=1)^80((v/v_(ref))^2)`

where:

`v` is the measured vibration level at each frequency

`v_(ref)` is the AS2670.2 base curve at each frequency

Comments or suggestions to
strutt@arup.com