Comparative study of modeling methods used to simulate initial stresses in prestressed beams towards manual analysis
| Autor: | Yehya Temsah, Mohamad Al-Ilani |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Numerical
Materials science business.industry Prestressed 0211 other engineering and technologies 02 engineering and technology Structural engineering 020303 mechanical engineering & transports 0203 mechanical engineering lcsh:TA1-2040 Modelling methods 021105 building & construction Stresses Camber lcsh:Engineering (General). Civil engineering (General) business |
| Zdroj: | MATEC Web of Conferences, Vol 281, p 01014 (2019) |
| ISSN: | 2261-236X |
| Popis: | Numerical modeling of the prestressing element that generates prestressed effect in beams has always been considered a big challenge. This research compares two methods of modeling; In the first method we used initial stresses predefined stress and in the second method we used the temperature strain. Concrete damage plasticity model (CDP) was used to model the non-linear behavior of concrete material and an elasto-plastic behavior was applied to ordinary and prestressed reinforcement. Truss elements were used to model ordinary and prestressed reinforcement embedded inside the concrete. As a result, Initial Temperature load method showed less error in bottom and top stresses and cambering of beam in comparison with the basic concept method, than predefined method. |
| Databáze: | OpenAIRE |
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