Conference proceedings article
Structural behaviour of normal strength and ultra high strength reinforced concrete with and without fibres under biaxial loading
Publication Details
Authors: | Fehling, E.; Leutbecher, T.; Röder, F. |
Editor: | Zingoni, A. |
Publisher: | Millpress |
Place: | Rotterdam |
Publication year: | 2007 |
Pages range : | 557-558 |
Book title: | Recent Developments in Structural Engineering, Mechanics and Computation |
Abstract
Reinforced normal strength concrete (NSC) panels with and without fibres and ultra high performance concrete (UHPC) panels have been investigated experimentally under biaxial compression-tension loading. At this the effects of lateral tensile stress and cracking on the compression strength were investigated. Based on the experimental results, a proposal for the reduction of the compression strength of the cracked reinforced non-fibred and steel fibre concrete versus the applied tensile strain was developed. The results were compared to the design requirements for the compression strut strength acc. to DIN1045-1 (2001), Eurocode2 (1991) and CEB-FIP Model Code 1990 (1991). A material model for cracked reinforced non-fibred and steel fibre concrete has been derived, suited for non-linear methods of structural analysis and for deformation calculations. In this connexion the stress-strain-relationship valid for uniaxial loading has been modified for biaxial compressive-tensile loading. Detailed reports about these tests are given by Fehling et. al..
Reinforced normal strength concrete (NSC) panels with and without fibres and ultra high performance concrete (UHPC) panels have been investigated experimentally under biaxial compression-tension loading. At this the effects of lateral tensile stress and cracking on the compression strength were investigated. Based on the experimental results, a proposal for the reduction of the compression strength of the cracked reinforced non-fibred and steel fibre concrete versus the applied tensile strain was developed. The results were compared to the design requirements for the compression strut strength acc. to DIN1045-1 (2001), Eurocode2 (1991) and CEB-FIP Model Code 1990 (1991). A material model for cracked reinforced non-fibred and steel fibre concrete has been derived, suited for non-linear methods of structural analysis and for deformation calculations. In this connexion the stress-strain-relationship valid for uniaxial loading has been modified for biaxial compressive-tensile loading. Detailed reports about these tests are given by Fehling et. al..
