AS 2670.2-1990

Provides guidance on human response to building vibrations and gives weighting curves of frequency response for equal conveyance of humans to continuous and intermittent vibration. Measurement methods are also given. Identical with and reproduced from ISO 2631-2:1989.

Primarily with respect to annoyance of human beings subject to building vibration, this part of ISO 2631 is limited to the following considerations:a) continuous vibration;b) intermittent vibration.The state of the art on transient (impulsive) vibration is presented in annexes A and B. General guidance is given on human response to building vibrations and weighting curves of frequency response for equal annoyance of humans are included together with measurement methods to be used.Consideration is given to the time of the day and the use made of the occupied space in the building, whether workshop, office, residential, hospital operating-theatreor other critical area. Acceptable magnitudes of vibration are not stated in this part of ISO 2631 since these cannot be specified rigidly and depend upon specific circumstances. Tentative guidance is given in annex A on the magnitude of vibration at which adverse comment may begin to arise. In cases where sensitive equipment or delicate operations impose more stringent criteria than human comfort, the corresponding more stringent values should be applied.Adjustments and variances may be allowed for short-term engineering works (for example foundation excavation and tunnelling) where good public relation practices are followed and prior warning is given.This part of ISO 2631 is not intendedto provide guidance as to the likelihood of structural damage to buildings or injury to occupants of buildings subject to vibration, as defined in ISO 2631-1.This part of ISO 2631 is concerned only with tactile perceptionand does not take into account auditory perception of reradiated sound.