Post-punching behaviour of prestressed concrete flat slabs
- Citation:
- Post-punching behaviour of prestressed concrete flat slabs, Ramos, Pinho A., and Lúcio V. J. G. , Magazine of Concrete Research, Volume 60, Number 4, p.245–251, (2008)
Abstract:
The progressive collapse of structures generally results in the loss of human lives. Experience shows that flat slab structures are very sensitive to progressive collapse, which may cause serious accidents if special detailing is not provided. The post-punching behaviour of a column-supported slab is decisive in the progressive collapse development. This work presents the experimental research carried out to study the post-punching behaviour of prestressed concrete flat slabs. Six reduced-scale prestressed concrete flat slab models were tested. The tests were carried out in two different phases. In the first phase the models were loaded up to failure by punching. Afterwards, the models were loaded again to study the post-punching behaviour changes caused by the presence of unbonded, prestressed tendons and the influences of their distance to the column.
Notes:
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