Comparative study of modeling methods used to simulate initial stresses in prestressed beams towards manual analysis

Autor: Al-Ilani Mohamad, Temsah Yehya
Jazyk: English<br />French
Rok vydání: 2019
Předmět:
Zdroj: MATEC Web of Conferences, Vol 281, p 01014 (2019)
Druh dokumentu: article
ISSN: 2261-236X
DOI: 10.1051/matecconf/201928101014
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: Directory of Open Access Journals