Effect of Partial Shear Connection on Strengthened Composite Beams with Externally Post-Tension TendonsEL-Shihy AM1, Shabaan HF1, Al-Kader HM1 and Hassanin AI2*
- *Corresponding Author:
- Hassanin AI
Assistant Lecturer, Faculty of Engineering
Egyptian Russian University, Cairo, Egypt
E-mail: [email protected]
Received Date: January 08, 2017; Accepted Date: January 21, 2017; Published Date: January 31, 2017
Citation: EL-Shihy AM, Shabaan HF, Al-Kader HM, Hassanin AI (2017) Effect of Partial Shear Connection on Strengthened Composite Beams with Externally Post-Tension Tendons. J Material Sci Eng 6: 318. doi: 10.4172/2169-0022.1000318
Copyright: © 2017 EL-Shihy AM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Composite steel-concrete beams are used widely in bridges and buildings construction as the main structural elements in flexure. These structures have a design life and this may be reduced if loads are increased or environmental degradation could happen. These changes may reduce the design life and strength of such members and thus replacement or retrofitting may need to be considered. The present study focuses on evaluating the effect of partial shear connection on strengthen composite beams with externally post-tension tendons. Using three dimensional F.E. modeling it’s able to simulate the overall flexural behavior of composite beams which are strengthen with many shapes of tendons profiles. A fundamental point for the structural behavior and design of composite beams is the level of connection and interaction between the steel section and the concrete slab. The use of partial connection provides the opportunity to achieve a better match of applied and resisting moment and some economy in the provision of connectors, taking into account the demonstrated advantages of externally post tension system like: Increase in ultimate moment capacity of structure, Enlarge the range of elastic behavior before yielding for the structure with the introduction of internal stresses.