Published Resources Details
Journal Article
- Title
- A rectangular stress block for high strength concrete based on probabilistic analysis
- In
- Australian Civil Engineering Transactions
- Imprint
- vol. CE38, no. 2/3/4, 1996, pp. 111-120
- Url
- https://search.informit.org/doi/10.3316/informit.304866396749699
- Description
Paper C/96007 was first submitted to IEAust on 26/6/1996. Paper Accepted on 20/12/1996.
Dr Mario M. Attard, BE PhD MHEd MIEAust, is Senior Lecturer, The University of New South Wales, Australia.
Dr Mark G Stewart, BE PhD MIEAust, is Senior Lecturer, The University of Newcastle, Newcastle, Australia.[This paper was awarded the R. W. Chapman Medal 1997]
- Abstract
The rectangular stress block parameters in the AS3600 are limited to concrete strengths in the range 20 to 50 MPa. New rectangular stress block parameters are proposed which are based on a probabilistic analysis and includes estimates of variability and distribution of the input properties. The probabilistic models proposed can be used in a code calibration of design formula for high strength concrete. It is shown that for a ductile singly reinforced rectangular section, the ultimate moment capacity is relatively insensitive to the stress block model. Estimates of the ductility level at ultimate and column capacity in primary compression failure are both, however, significantly effected by the choice of the stress block model.