This paper describes a model for analysis of punching shear in structural concrete slabs. The model is based on the theory of plasticity. However, unlike the classical plasticity approach which employs energy minimization to determine the critical failure mechanism, the present model predicts the critical failure mode by taking into account the fact that cracked concrete has reduced strength parameters in comparison with uncracked concrete. For this reason, a punching failure in a previously developed circumferential shear crack may be more critical than the failure mechanism found by energy minimization. The procedure of calculation is outlined and comparison with a large number of test results has been carried. Good agreement is found.
|Publication status||Published - 2008|
|Event||11th East Asia-Pacific Conference on Structural Engineering and Construction - Taipei, Taiwan, Province of China|
Duration: 19 Nov 2008 → 21 Nov 2008
|Conference||11th East Asia-Pacific Conference on Structural Engineering and Construction|
|Country||Taiwan, Province of China|
|Period||19/11/2008 → 21/11/2008|