Strain method for doubly reinforced rectangular beams design

The compressed steel in a doubly reinforced beam improves ductility, reduces immediate and long-term deflections, it is available to support the tension in sections under reversal stress, and in low-height beams, it increases strength. With the expected strain as a measure of the section ductility,...

Celý popis

Podrobná bibliografie
Hlavní autor: Prieto-Serrano, Luis Rafael
Médium: Online
Jazyk:spa
Vydáno: Universidad Pedagógica y Tecnológica de Colombia 2015
Témata:
On-line přístup:https://revistas.uptc.edu.co/index.php/ingenieria/article/view/4024
Popis
Shrnutí:The compressed steel in a doubly reinforced beam improves ductility, reduces immediate and long-term deflections, it is available to support the tension in sections under reversal stress, and in low-height beams, it increases strength. With the expected strain as a measure of the section ductility, the paper proposes a direct methodology to determine the necessary compression quantities and tension reinforcement. It finds that the most efficient sections are those for which the tension reinforcing strain is 0.005.