SR35 Dynamic characteristics of New Zealand heavy floors (2007)

This work follows on from earlier work, which was a literature survey of design methods for floors subjected to occupant-induced vibrations. Although design methods were recommended, dynamic parameters (damping, frequency) obtained from tests carried out overseas may not be suitable for New Zealand.

This report describes tests to quantify dynamic parameters of New Zealand heavy floors so that recommended design methods can be used. In this report, heavy floors are those constructed with a concrete topping or concrete slab.

Human heel drop was used to excite all tested floors. Some floors were also excited with a modular-tuned impulse hammer. In two of the precast rib floors, a mechanical impactor calibrated to simulate standard heel drops was used.