The improvement of modelling capabilities that could enable defensible performance based structural fire design of post-tensioned (PT) concrete buildings requires detailed validation data from densely instrumented experiments that incorporate as many of the relevant structural properties of as- built construction as possible. Experiments are presented on three 3-span continuous, restrained PT concrete slab strips under sustained service loading and exposed to severe localised heating under constant incident heat flux. A similar yet highly complex deflection response to high temperature is presented for all three slabs. The possible physical mechanisms responsible for the observed complex high temperature deformation response are presented and discussed. The overarching objective is to help steer future research for the development of rational fire safety strategies for PT concrete (and reinforced concrete) buildings by interrogating these systems’ real behaviour in realistic fire scenarios.
|Title of host publication||8th International Conference on Structures in Fire|
|Place of Publication||Shanghai|
|Publisher||Tongji University Press|
|Publication status||Published - 1 Jun 2014|