Abstract
Recent studies have shown that Semidefinite Programming (SDP) can be used effectively for limit analysis of isotropic cohesive-frictional continuums using the classical Mohr-Coulomb yield criterion. In this paper we expand on this previous research by adding reinforcement to the model and a solid element for lower bound analysis of reinforced concrete structures is presented. The method defines the stress state at a point within the solid as a combination of concrete- and reinforcement stresses and yield criterions are applied to the stress components separately. This method allows for orthotropic reinforcement and it is therefore possible to analyze structures with complex reinforcement layouts. Tests are conducted to validate the method against well-known analytical solutions.
| Original language | English |
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| Title of host publication | Computational Technologies in Concrete Structures |
| Number of pages | 9 |
| Publication date | 2009 |
| Pages | 154 |
| Publication status | Published - 2009 |
| Event | International conference on computational Technologies in Concrete Structures - JeJu, Southkorea Duration: 1 Jan 2009 → … |
Conference
| Conference | International conference on computational Technologies in Concrete Structures |
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| City | JeJu, Southkorea |
| Period | 01/01/2009 → … |
Keywords
- Limit Analysis, Semidefinite Programming