Slender precast voided slabs under <scp>walking‐induced</scp> vibration

Disturbance/discomfort caused by vibrations, induced pedestrian walking on slabs in residential/office buildings, is a typical design issue for lightweight slender slabs, including prestressed concrete ones. Precast are typically made with pretensioned members which allow only partial collaboration the transverse slab direction, becomes even less effective when they dry-assembled without cast-in-situ topping since it relies arrangement of mutual mechanical connections only. This study investigates through tests and numerical analyses response precast long-span voided members, connections, subjected to vibrations generated human activities. A parametric set dynamic modal time-history encompassing floor member geometry, connection arrangement, mass, damping, carried out. The models validated against results from an experimental test program out two decks prototype building. allowed characterize fundamental properties its vibrational performance, identifying most efficient technological solutions among those investigated mitigate human-induced