When the upper bound plasticity approach is used to calculate the shear strength of concrete beams, there is a need of determining the energy dissipated in the yield lines. Plastic design formulas developed until now are mostly based on the assumption of straight yield lines. However, many experimental results have shown that shear cracks in beams are curved. This paper presents a procedure to calculate the dissipation in curved yield lines. The result turns out to be a simple formula suitable for practical use. Calculations according to the presented procedure have been compared with test results for beams failed in diagonal cracking. Very good agreements with test results are obtained.
|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|
Zhao, Y., Hoang, L. C., & Nielsen, M. P. (2008). Upper bound calculations of shear resistance in arbitrary curved diagonal cracks. Paper presented at 11th East Asia-Pacific Conference on Structural Engineering and Construction, Taipei, Taiwan, Province of China.