Abstract: Further improvements are needed in building technology to save time and resources. Nowadays, principal and public buildings are designed as long-span structures. The prestressed concrete system has proven to be more effective for spans exceeding 6 meters instead of the traditional reinforced concrete system, helping to reduce deformations and save materials. There are two types of prestressed concrete systems: pre-tension, where tendons are tensioned before concrete pouring, and post-tension, where tendons are tensioned after pouring. The unbonded system is one type of post tension system. At this research, the ultimate punching shear load was tested on the unbonded post tensioned slab and compared to the theoretical calculated value of the punching shear capacity of reinforced concrete flat slab. Strain behavior of reinforced steel bars and unbonded tendons of the specimen were studied. Also, deformation behavior of specimen during test up to failure was studied.
Keywords: Prestressing strands, Unbonded tendons, Post-tensioned flat slab.
Title: Punching Behavior of Unbonded Post Tensioned flat slab
Author: Omnia S. Ismail, Ayman H. H. Khalil, Mahmoud El-Kateb
International Journal of Computer Science and Information Technology Research
ISSN 2348-1196 (print), ISSN 2348-120X (online)
Vol. 12, Issue 2, April 2024 - June 2024
Page No: 6-12
Research Publish Journals
Website: www.researchpublish.com
Published Date: 03-May-2024
